--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
+obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o
+obj-$(CONFIG_IMX8M_BLK_CTRL) += imx8m-blk-ctrl.o
+obj-$(CONFIG_IMX8M_BLK_CTRL) += imx8mp-blk-ctrl.o
+obj-$(CONFIG_SOC_IMX9) += imx93-pd.o
+obj-$(CONFIG_IMX9_BLK_CTRL) += imx93-blk-ctrl.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
+ * Copyright 2011-2013 Freescale Semiconductor, Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#define GPC_CNTR 0x000
+
+#define GPC_PGC_CTRL_OFFS 0x0
+#define GPC_PGC_PUPSCR_OFFS 0x4
+#define GPC_PGC_PDNSCR_OFFS 0x8
+#define GPC_PGC_SW2ISO_SHIFT 0x8
+#define GPC_PGC_SW_SHIFT 0x0
+
+#define GPC_PGC_PCI_PDN 0x200
+#define GPC_PGC_PCI_SR 0x20c
+
+#define GPC_PGC_GPU_PDN 0x260
+#define GPC_PGC_GPU_PUPSCR 0x264
+#define GPC_PGC_GPU_PDNSCR 0x268
+#define GPC_PGC_GPU_SR 0x26c
+
+#define GPC_PGC_DISP_PDN 0x240
+#define GPC_PGC_DISP_SR 0x24c
+
+#define GPU_VPU_PUP_REQ BIT(1)
+#define GPU_VPU_PDN_REQ BIT(0)
+
+#define GPC_CLK_MAX 7
+
+#define PGC_DOMAIN_FLAG_NO_PD BIT(0)
+
+struct imx_pm_domain {
+ struct generic_pm_domain base;
+ struct regmap *regmap;
+ struct regulator *supply;
+ struct clk *clk[GPC_CLK_MAX];
+ int num_clks;
+ unsigned int reg_offs;
+ signed char cntr_pdn_bit;
+ unsigned int ipg_rate_mhz;
+};
+
+static inline struct imx_pm_domain *
+to_imx_pm_domain(struct generic_pm_domain *genpd)
+{
+ return container_of(genpd, struct imx_pm_domain, base);
+}
+
+static int imx6_pm_domain_power_off(struct generic_pm_domain *genpd)
+{
+ struct imx_pm_domain *pd = to_imx_pm_domain(genpd);
+ int iso, iso2sw;
+ u32 val;
+
+ /* Read ISO and ISO2SW power down delays */
+ regmap_read(pd->regmap, pd->reg_offs + GPC_PGC_PDNSCR_OFFS, &val);
+ iso = val & 0x3f;
+ iso2sw = (val >> 8) & 0x3f;
+
+ /* Gate off domain when powered down */
+ regmap_update_bits(pd->regmap, pd->reg_offs + GPC_PGC_CTRL_OFFS,
+ 0x1, 0x1);
+
+ /* Request GPC to power down domain */
+ val = BIT(pd->cntr_pdn_bit);
+ regmap_update_bits(pd->regmap, GPC_CNTR, val, val);
+
+ /* Wait ISO + ISO2SW IPG clock cycles */
+ udelay(DIV_ROUND_UP(iso + iso2sw, pd->ipg_rate_mhz));
+
+ if (pd->supply)
+ regulator_disable(pd->supply);
+
+ return 0;
+}
+
+static int imx6_pm_domain_power_on(struct generic_pm_domain *genpd)
+{
+ struct imx_pm_domain *pd = to_imx_pm_domain(genpd);
+ int i, ret;
+ u32 val, req;
+
+ if (pd->supply) {
+ ret = regulator_enable(pd->supply);
+ if (ret) {
+ pr_err("%s: failed to enable regulator: %d\n",
+ __func__, ret);
+ return ret;
+ }
+ }
+
+ /* Enable reset clocks for all devices in the domain */
+ for (i = 0; i < pd->num_clks; i++)
+ clk_prepare_enable(pd->clk[i]);
+
+ /* Gate off domain when powered down */
+ regmap_update_bits(pd->regmap, pd->reg_offs + GPC_PGC_CTRL_OFFS,
+ 0x1, 0x1);
+
+ /* Request GPC to power up domain */
+ req = BIT(pd->cntr_pdn_bit + 1);
+ regmap_update_bits(pd->regmap, GPC_CNTR, req, req);
+
+ /* Wait for the PGC to handle the request */
+ ret = regmap_read_poll_timeout(pd->regmap, GPC_CNTR, val, !(val & req),
+ 1, 50);
+ if (ret)
+ pr_err("powerup request on domain %s timed out\n", genpd->name);
+
+ /* Wait for reset to propagate through peripherals */
+ usleep_range(5, 10);
+
+ /* Disable reset clocks for all devices in the domain */
+ for (i = 0; i < pd->num_clks; i++)
+ clk_disable_unprepare(pd->clk[i]);
+
+ return 0;
+}
+
+static int imx_pgc_get_clocks(struct device *dev, struct imx_pm_domain *domain)
+{
+ int i, ret;
+
+ for (i = 0; ; i++) {
+ struct clk *clk = of_clk_get(dev->of_node, i);
+ if (IS_ERR(clk))
+ break;
+ if (i >= GPC_CLK_MAX) {
+ dev_err(dev, "more than %d clocks\n", GPC_CLK_MAX);
+ ret = -EINVAL;
+ goto clk_err;
+ }
+ domain->clk[i] = clk;
+ }
+ domain->num_clks = i;
+
+ return 0;
+
+clk_err:
+ while (i--)
+ clk_put(domain->clk[i]);
+
+ return ret;
+}
+
+static void imx_pgc_put_clocks(struct imx_pm_domain *domain)
+{
+ int i;
+
+ for (i = domain->num_clks - 1; i >= 0; i--)
+ clk_put(domain->clk[i]);
+}
+
+static int imx_pgc_parse_dt(struct device *dev, struct imx_pm_domain *domain)
+{
+ /* try to get the domain supply regulator */
+ domain->supply = devm_regulator_get_optional(dev, "power");
+ if (IS_ERR(domain->supply)) {
+ if (PTR_ERR(domain->supply) == -ENODEV)
+ domain->supply = NULL;
+ else
+ return PTR_ERR(domain->supply);
+ }
+
+ /* try to get all clocks needed for reset propagation */
+ return imx_pgc_get_clocks(dev, domain);
+}
+
+static int imx_pgc_power_domain_probe(struct platform_device *pdev)
+{
+ struct imx_pm_domain *domain = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ /* if this PD is associated with a DT node try to parse it */
+ if (dev->of_node) {
+ ret = imx_pgc_parse_dt(dev, domain);
+ if (ret)
+ return ret;
+ }
+
+ /* initially power on the domain */
+ if (domain->base.power_on)
+ domain->base.power_on(&domain->base);
+
+ if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
+ pm_genpd_init(&domain->base, NULL, false);
+ ret = of_genpd_add_provider_simple(dev->of_node, &domain->base);
+ if (ret)
+ goto genpd_err;
+ }
+
+ device_link_add(dev, dev->parent, DL_FLAG_AUTOREMOVE_CONSUMER);
+
+ return 0;
+
+genpd_err:
+ pm_genpd_remove(&domain->base);
+ imx_pgc_put_clocks(domain);
+
+ return ret;
+}
+
+static int imx_pgc_power_domain_remove(struct platform_device *pdev)
+{
+ struct imx_pm_domain *domain = pdev->dev.platform_data;
+
+ if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
+ of_genpd_del_provider(pdev->dev.of_node);
+ pm_genpd_remove(&domain->base);
+ imx_pgc_put_clocks(domain);
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id imx_pgc_power_domain_id[] = {
+ { "imx-pgc-power-domain"},
+ { },
+};
+
+static struct platform_driver imx_pgc_power_domain_driver = {
+ .driver = {
+ .name = "imx-pgc-pd",
+ },
+ .probe = imx_pgc_power_domain_probe,
+ .remove = imx_pgc_power_domain_remove,
+ .id_table = imx_pgc_power_domain_id,
+};
+builtin_platform_driver(imx_pgc_power_domain_driver)
+
+#define GPC_PGC_DOMAIN_ARM 0
+#define GPC_PGC_DOMAIN_PU 1
+#define GPC_PGC_DOMAIN_DISPLAY 2
+#define GPC_PGC_DOMAIN_PCI 3
+
+static struct genpd_power_state imx6_pm_domain_pu_state = {
+ .power_off_latency_ns = 25000,
+ .power_on_latency_ns = 2000000,
+};
+
+static struct imx_pm_domain imx_gpc_domains[] = {
+ [GPC_PGC_DOMAIN_ARM] = {
+ .base = {
+ .name = "ARM",
+ .flags = GENPD_FLAG_ALWAYS_ON,
+ },
+ },
+ [GPC_PGC_DOMAIN_PU] = {
+ .base = {
+ .name = "PU",
+ .power_off = imx6_pm_domain_power_off,
+ .power_on = imx6_pm_domain_power_on,
+ .states = &imx6_pm_domain_pu_state,
+ .state_count = 1,
+ },
+ .reg_offs = 0x260,
+ .cntr_pdn_bit = 0,
+ },
+ [GPC_PGC_DOMAIN_DISPLAY] = {
+ .base = {
+ .name = "DISPLAY",
+ .power_off = imx6_pm_domain_power_off,
+ .power_on = imx6_pm_domain_power_on,
+ },
+ .reg_offs = 0x240,
+ .cntr_pdn_bit = 4,
+ },
+ [GPC_PGC_DOMAIN_PCI] = {
+ .base = {
+ .name = "PCI",
+ .power_off = imx6_pm_domain_power_off,
+ .power_on = imx6_pm_domain_power_on,
+ },
+ .reg_offs = 0x200,
+ .cntr_pdn_bit = 6,
+ },
+};
+
+struct imx_gpc_dt_data {
+ int num_domains;
+ bool err009619_present;
+ bool err006287_present;
+};
+
+static const struct imx_gpc_dt_data imx6q_dt_data = {
+ .num_domains = 2,
+ .err009619_present = false,
+ .err006287_present = false,
+};
+
+static const struct imx_gpc_dt_data imx6qp_dt_data = {
+ .num_domains = 2,
+ .err009619_present = true,
+ .err006287_present = false,
+};
+
+static const struct imx_gpc_dt_data imx6sl_dt_data = {
+ .num_domains = 3,
+ .err009619_present = false,
+ .err006287_present = true,
+};
+
+static const struct imx_gpc_dt_data imx6sx_dt_data = {
+ .num_domains = 4,
+ .err009619_present = false,
+ .err006287_present = false,
+};
+
+static const struct of_device_id imx_gpc_dt_ids[] = {
+ { .compatible = "fsl,imx6q-gpc", .data = &imx6q_dt_data },
+ { .compatible = "fsl,imx6qp-gpc", .data = &imx6qp_dt_data },
+ { .compatible = "fsl,imx6sl-gpc", .data = &imx6sl_dt_data },
+ { .compatible = "fsl,imx6sx-gpc", .data = &imx6sx_dt_data },
+ { }
+};
+
+static const struct regmap_range yes_ranges[] = {
+ regmap_reg_range(GPC_CNTR, GPC_CNTR),
+ regmap_reg_range(GPC_PGC_PCI_PDN, GPC_PGC_PCI_SR),
+ regmap_reg_range(GPC_PGC_GPU_PDN, GPC_PGC_GPU_SR),
+ regmap_reg_range(GPC_PGC_DISP_PDN, GPC_PGC_DISP_SR),
+};
+
+static const struct regmap_access_table access_table = {
+ .yes_ranges = yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(yes_ranges),
+};
+
+static const struct regmap_config imx_gpc_regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .rd_table = &access_table,
+ .wr_table = &access_table,
+ .max_register = 0x2ac,
+ .fast_io = true,
+};
+
+static struct generic_pm_domain *imx_gpc_onecell_domains[] = {
+ &imx_gpc_domains[GPC_PGC_DOMAIN_ARM].base,
+ &imx_gpc_domains[GPC_PGC_DOMAIN_PU].base,
+};
+
+static struct genpd_onecell_data imx_gpc_onecell_data = {
+ .domains = imx_gpc_onecell_domains,
+ .num_domains = 2,
+};
+
+static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap,
+ unsigned int num_domains)
+{
+ struct imx_pm_domain *domain;
+ int i, ret;
+
+ for (i = 0; i < num_domains; i++) {
+ domain = &imx_gpc_domains[i];
+ domain->regmap = regmap;
+ domain->ipg_rate_mhz = 66;
+
+ if (i == 1) {
+ domain->supply = devm_regulator_get(dev, "pu");
+ if (IS_ERR(domain->supply))
+ return PTR_ERR(domain->supply);
+
+ ret = imx_pgc_get_clocks(dev, domain);
+ if (ret)
+ goto clk_err;
+
+ domain->base.power_on(&domain->base);
+ }
+ }
+
+ for (i = 0; i < num_domains; i++)
+ pm_genpd_init(&imx_gpc_domains[i].base, NULL, false);
+
+ if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
+ ret = of_genpd_add_provider_onecell(dev->of_node,
+ &imx_gpc_onecell_data);
+ if (ret)
+ goto genpd_err;
+ }
+
+ return 0;
+
+genpd_err:
+ for (i = 0; i < num_domains; i++)
+ pm_genpd_remove(&imx_gpc_domains[i].base);
+ imx_pgc_put_clocks(&imx_gpc_domains[GPC_PGC_DOMAIN_PU]);
+clk_err:
+ return ret;
+}
+
+static int imx_gpc_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(imx_gpc_dt_ids, &pdev->dev);
+ const struct imx_gpc_dt_data *of_id_data = of_id->data;
+ struct device_node *pgc_node;
+ struct regmap *regmap;
+ void __iomem *base;
+ int ret;
+
+ pgc_node = of_get_child_by_name(pdev->dev.of_node, "pgc");
+
+ /* bail out if DT too old and doesn't provide the necessary info */
+ if (!of_property_read_bool(pdev->dev.of_node, "#power-domain-cells") &&
+ !pgc_node)
+ return 0;
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap = devm_regmap_init_mmio_clk(&pdev->dev, NULL, base,
+ &imx_gpc_regmap_config);
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ dev_err(&pdev->dev, "failed to init regmap: %d\n",
+ ret);
+ return ret;
+ }
+
+ /*
+ * Disable PU power down by runtime PM if ERR009619 is present.
+ *
+ * The PRE clock will be paused for several cycles when turning on the
+ * PU domain LDO from power down state. If PRE is in use at that time,
+ * the IPU/PRG cannot get the correct display data from the PRE.
+ *
+ * This is not a concern when the whole system enters suspend state, so
+ * it's safe to power down PU in this case.
+ */
+ if (of_id_data->err009619_present)
+ imx_gpc_domains[GPC_PGC_DOMAIN_PU].base.flags |=
+ GENPD_FLAG_RPM_ALWAYS_ON;
+
+ /* Keep DISP always on if ERR006287 is present */
+ if (of_id_data->err006287_present)
+ imx_gpc_domains[GPC_PGC_DOMAIN_DISPLAY].base.flags |=
+ GENPD_FLAG_ALWAYS_ON;
+
+ if (!pgc_node) {
+ ret = imx_gpc_old_dt_init(&pdev->dev, regmap,
+ of_id_data->num_domains);
+ if (ret)
+ return ret;
+ } else {
+ struct imx_pm_domain *domain;
+ struct platform_device *pd_pdev;
+ struct device_node *np;
+ struct clk *ipg_clk;
+ unsigned int ipg_rate_mhz;
+ int domain_index;
+
+ ipg_clk = devm_clk_get(&pdev->dev, "ipg");
+ if (IS_ERR(ipg_clk))
+ return PTR_ERR(ipg_clk);
+ ipg_rate_mhz = clk_get_rate(ipg_clk) / 1000000;
+
+ for_each_child_of_node(pgc_node, np) {
+ ret = of_property_read_u32(np, "reg", &domain_index);
+ if (ret) {
+ of_node_put(np);
+ return ret;
+ }
+ if (domain_index >= of_id_data->num_domains)
+ continue;
+
+ pd_pdev = platform_device_alloc("imx-pgc-power-domain",
+ domain_index);
+ if (!pd_pdev) {
+ of_node_put(np);
+ return -ENOMEM;
+ }
+
+ ret = platform_device_add_data(pd_pdev,
+ &imx_gpc_domains[domain_index],
+ sizeof(imx_gpc_domains[domain_index]));
+ if (ret) {
+ platform_device_put(pd_pdev);
+ of_node_put(np);
+ return ret;
+ }
+ domain = pd_pdev->dev.platform_data;
+ domain->regmap = regmap;
+ domain->ipg_rate_mhz = ipg_rate_mhz;
+
+ pd_pdev->dev.parent = &pdev->dev;
+ pd_pdev->dev.of_node = np;
+
+ ret = platform_device_add(pd_pdev);
+ if (ret) {
+ platform_device_put(pd_pdev);
+ of_node_put(np);
+ return ret;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int imx_gpc_remove(struct platform_device *pdev)
+{
+ struct device_node *pgc_node;
+ int ret;
+
+ pgc_node = of_get_child_by_name(pdev->dev.of_node, "pgc");
+
+ /* bail out if DT too old and doesn't provide the necessary info */
+ if (!of_property_read_bool(pdev->dev.of_node, "#power-domain-cells") &&
+ !pgc_node)
+ return 0;
+
+ /*
+ * If the old DT binding is used the toplevel driver needs to
+ * de-register the power domains
+ */
+ if (!pgc_node) {
+ of_genpd_del_provider(pdev->dev.of_node);
+
+ ret = pm_genpd_remove(&imx_gpc_domains[GPC_PGC_DOMAIN_PU].base);
+ if (ret)
+ return ret;
+ imx_pgc_put_clocks(&imx_gpc_domains[GPC_PGC_DOMAIN_PU]);
+
+ ret = pm_genpd_remove(&imx_gpc_domains[GPC_PGC_DOMAIN_ARM].base);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct platform_driver imx_gpc_driver = {
+ .driver = {
+ .name = "imx-gpc",
+ .of_match_table = imx_gpc_dt_ids,
+ },
+ .probe = imx_gpc_probe,
+ .remove = imx_gpc_remove,
+};
+builtin_platform_driver(imx_gpc_driver)
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2017 Impinj, Inc
+ * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
+ *
+ * Based on the code of analogus driver:
+ *
+ * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
+ */
+
+#include <linux/clk.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <linux/sizes.h>
+#include <dt-bindings/power/imx7-power.h>
+#include <dt-bindings/power/imx8mq-power.h>
+#include <dt-bindings/power/imx8mm-power.h>
+#include <dt-bindings/power/imx8mn-power.h>
+#include <dt-bindings/power/imx8mp-power.h>
+
+#define GPC_LPCR_A_CORE_BSC 0x000
+
+#define GPC_PGC_CPU_MAPPING 0x0ec
+#define IMX8MP_GPC_PGC_CPU_MAPPING 0x1cc
+
+#define IMX7_USB_HSIC_PHY_A_CORE_DOMAIN BIT(6)
+#define IMX7_USB_OTG2_PHY_A_CORE_DOMAIN BIT(5)
+#define IMX7_USB_OTG1_PHY_A_CORE_DOMAIN BIT(4)
+#define IMX7_PCIE_PHY_A_CORE_DOMAIN BIT(3)
+#define IMX7_MIPI_PHY_A_CORE_DOMAIN BIT(2)
+
+#define IMX8M_PCIE2_A53_DOMAIN BIT(15)
+#define IMX8M_MIPI_CSI2_A53_DOMAIN BIT(14)
+#define IMX8M_MIPI_CSI1_A53_DOMAIN BIT(13)
+#define IMX8M_DISP_A53_DOMAIN BIT(12)
+#define IMX8M_HDMI_A53_DOMAIN BIT(11)
+#define IMX8M_VPU_A53_DOMAIN BIT(10)
+#define IMX8M_GPU_A53_DOMAIN BIT(9)
+#define IMX8M_DDR2_A53_DOMAIN BIT(8)
+#define IMX8M_DDR1_A53_DOMAIN BIT(7)
+#define IMX8M_OTG2_A53_DOMAIN BIT(5)
+#define IMX8M_OTG1_A53_DOMAIN BIT(4)
+#define IMX8M_PCIE1_A53_DOMAIN BIT(3)
+#define IMX8M_MIPI_A53_DOMAIN BIT(2)
+
+#define IMX8MM_VPUH1_A53_DOMAIN BIT(15)
+#define IMX8MM_VPUG2_A53_DOMAIN BIT(14)
+#define IMX8MM_VPUG1_A53_DOMAIN BIT(13)
+#define IMX8MM_DISPMIX_A53_DOMAIN BIT(12)
+#define IMX8MM_VPUMIX_A53_DOMAIN BIT(10)
+#define IMX8MM_GPUMIX_A53_DOMAIN BIT(9)
+#define IMX8MM_GPU_A53_DOMAIN (BIT(8) | BIT(11))
+#define IMX8MM_DDR1_A53_DOMAIN BIT(7)
+#define IMX8MM_OTG2_A53_DOMAIN BIT(5)
+#define IMX8MM_OTG1_A53_DOMAIN BIT(4)
+#define IMX8MM_PCIE_A53_DOMAIN BIT(3)
+#define IMX8MM_MIPI_A53_DOMAIN BIT(2)
+
+#define IMX8MN_DISPMIX_A53_DOMAIN BIT(12)
+#define IMX8MN_GPUMIX_A53_DOMAIN BIT(9)
+#define IMX8MN_DDR1_A53_DOMAIN BIT(7)
+#define IMX8MN_OTG1_A53_DOMAIN BIT(4)
+#define IMX8MN_MIPI_A53_DOMAIN BIT(2)
+
+#define IMX8MP_MEDIA_ISPDWP_A53_DOMAIN BIT(20)
+#define IMX8MP_HSIOMIX_A53_DOMAIN BIT(19)
+#define IMX8MP_MIPI_PHY2_A53_DOMAIN BIT(18)
+#define IMX8MP_HDMI_PHY_A53_DOMAIN BIT(17)
+#define IMX8MP_HDMIMIX_A53_DOMAIN BIT(16)
+#define IMX8MP_VPU_VC8000E_A53_DOMAIN BIT(15)
+#define IMX8MP_VPU_G2_A53_DOMAIN BIT(14)
+#define IMX8MP_VPU_G1_A53_DOMAIN BIT(13)
+#define IMX8MP_MEDIAMIX_A53_DOMAIN BIT(12)
+#define IMX8MP_GPU3D_A53_DOMAIN BIT(11)
+#define IMX8MP_VPUMIX_A53_DOMAIN BIT(10)
+#define IMX8MP_GPUMIX_A53_DOMAIN BIT(9)
+#define IMX8MP_GPU2D_A53_DOMAIN BIT(8)
+#define IMX8MP_AUDIOMIX_A53_DOMAIN BIT(7)
+#define IMX8MP_MLMIX_A53_DOMAIN BIT(6)
+#define IMX8MP_USB2_PHY_A53_DOMAIN BIT(5)
+#define IMX8MP_USB1_PHY_A53_DOMAIN BIT(4)
+#define IMX8MP_PCIE_PHY_A53_DOMAIN BIT(3)
+#define IMX8MP_MIPI_PHY1_A53_DOMAIN BIT(2)
+
+#define IMX8MP_GPC_PU_PGC_SW_PUP_REQ 0x0d8
+#define IMX8MP_GPC_PU_PGC_SW_PDN_REQ 0x0e4
+
+#define GPC_PU_PGC_SW_PUP_REQ 0x0f8
+#define GPC_PU_PGC_SW_PDN_REQ 0x104
+
+#define IMX7_USB_HSIC_PHY_SW_Pxx_REQ BIT(4)
+#define IMX7_USB_OTG2_PHY_SW_Pxx_REQ BIT(3)
+#define IMX7_USB_OTG1_PHY_SW_Pxx_REQ BIT(2)
+#define IMX7_PCIE_PHY_SW_Pxx_REQ BIT(1)
+#define IMX7_MIPI_PHY_SW_Pxx_REQ BIT(0)
+
+#define IMX8M_PCIE2_SW_Pxx_REQ BIT(13)
+#define IMX8M_MIPI_CSI2_SW_Pxx_REQ BIT(12)
+#define IMX8M_MIPI_CSI1_SW_Pxx_REQ BIT(11)
+#define IMX8M_DISP_SW_Pxx_REQ BIT(10)
+#define IMX8M_HDMI_SW_Pxx_REQ BIT(9)
+#define IMX8M_VPU_SW_Pxx_REQ BIT(8)
+#define IMX8M_GPU_SW_Pxx_REQ BIT(7)
+#define IMX8M_DDR2_SW_Pxx_REQ BIT(6)
+#define IMX8M_DDR1_SW_Pxx_REQ BIT(5)
+#define IMX8M_OTG2_SW_Pxx_REQ BIT(3)
+#define IMX8M_OTG1_SW_Pxx_REQ BIT(2)
+#define IMX8M_PCIE1_SW_Pxx_REQ BIT(1)
+#define IMX8M_MIPI_SW_Pxx_REQ BIT(0)
+
+#define IMX8MM_VPUH1_SW_Pxx_REQ BIT(13)
+#define IMX8MM_VPUG2_SW_Pxx_REQ BIT(12)
+#define IMX8MM_VPUG1_SW_Pxx_REQ BIT(11)
+#define IMX8MM_DISPMIX_SW_Pxx_REQ BIT(10)
+#define IMX8MM_VPUMIX_SW_Pxx_REQ BIT(8)
+#define IMX8MM_GPUMIX_SW_Pxx_REQ BIT(7)
+#define IMX8MM_GPU_SW_Pxx_REQ (BIT(6) | BIT(9))
+#define IMX8MM_DDR1_SW_Pxx_REQ BIT(5)
+#define IMX8MM_OTG2_SW_Pxx_REQ BIT(3)
+#define IMX8MM_OTG1_SW_Pxx_REQ BIT(2)
+#define IMX8MM_PCIE_SW_Pxx_REQ BIT(1)
+#define IMX8MM_MIPI_SW_Pxx_REQ BIT(0)
+
+#define IMX8MN_DISPMIX_SW_Pxx_REQ BIT(10)
+#define IMX8MN_GPUMIX_SW_Pxx_REQ BIT(7)
+#define IMX8MN_DDR1_SW_Pxx_REQ BIT(5)
+#define IMX8MN_OTG1_SW_Pxx_REQ BIT(2)
+#define IMX8MN_MIPI_SW_Pxx_REQ BIT(0)
+
+#define IMX8MP_DDRMIX_Pxx_REQ BIT(19)
+#define IMX8MP_MEDIA_ISP_DWP_Pxx_REQ BIT(18)
+#define IMX8MP_HSIOMIX_Pxx_REQ BIT(17)
+#define IMX8MP_MIPI_PHY2_Pxx_REQ BIT(16)
+#define IMX8MP_HDMI_PHY_Pxx_REQ BIT(15)
+#define IMX8MP_HDMIMIX_Pxx_REQ BIT(14)
+#define IMX8MP_VPU_VC8K_Pxx_REQ BIT(13)
+#define IMX8MP_VPU_G2_Pxx_REQ BIT(12)
+#define IMX8MP_VPU_G1_Pxx_REQ BIT(11)
+#define IMX8MP_MEDIMIX_Pxx_REQ BIT(10)
+#define IMX8MP_GPU_3D_Pxx_REQ BIT(9)
+#define IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ BIT(8)
+#define IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ BIT(7)
+#define IMX8MP_GPU_2D_Pxx_REQ BIT(6)
+#define IMX8MP_AUDIOMIX_Pxx_REQ BIT(5)
+#define IMX8MP_MLMIX_Pxx_REQ BIT(4)
+#define IMX8MP_USB2_PHY_Pxx_REQ BIT(3)
+#define IMX8MP_USB1_PHY_Pxx_REQ BIT(2)
+#define IMX8MP_PCIE_PHY_SW_Pxx_REQ BIT(1)
+#define IMX8MP_MIPI_PHY1_SW_Pxx_REQ BIT(0)
+
+#define GPC_M4_PU_PDN_FLG 0x1bc
+
+#define IMX8MP_GPC_PU_PWRHSK 0x190
+#define GPC_PU_PWRHSK 0x1fc
+
+#define IMX8M_GPU_HSK_PWRDNACKN BIT(26)
+#define IMX8M_VPU_HSK_PWRDNACKN BIT(25)
+#define IMX8M_DISP_HSK_PWRDNACKN BIT(24)
+#define IMX8M_GPU_HSK_PWRDNREQN BIT(6)
+#define IMX8M_VPU_HSK_PWRDNREQN BIT(5)
+#define IMX8M_DISP_HSK_PWRDNREQN BIT(4)
+
+#define IMX8MM_GPUMIX_HSK_PWRDNACKN BIT(29)
+#define IMX8MM_GPU_HSK_PWRDNACKN (BIT(27) | BIT(28))
+#define IMX8MM_VPUMIX_HSK_PWRDNACKN BIT(26)
+#define IMX8MM_DISPMIX_HSK_PWRDNACKN BIT(25)
+#define IMX8MM_HSIO_HSK_PWRDNACKN (BIT(23) | BIT(24))
+#define IMX8MM_GPUMIX_HSK_PWRDNREQN BIT(11)
+#define IMX8MM_GPU_HSK_PWRDNREQN (BIT(9) | BIT(10))
+#define IMX8MM_VPUMIX_HSK_PWRDNREQN BIT(8)
+#define IMX8MM_DISPMIX_HSK_PWRDNREQN BIT(7)
+#define IMX8MM_HSIO_HSK_PWRDNREQN (BIT(5) | BIT(6))
+
+#define IMX8MN_GPUMIX_HSK_PWRDNACKN (BIT(29) | BIT(27))
+#define IMX8MN_DISPMIX_HSK_PWRDNACKN BIT(25)
+#define IMX8MN_HSIO_HSK_PWRDNACKN BIT(23)
+#define IMX8MN_GPUMIX_HSK_PWRDNREQN (BIT(11) | BIT(9))
+#define IMX8MN_DISPMIX_HSK_PWRDNREQN BIT(7)
+#define IMX8MN_HSIO_HSK_PWRDNREQN BIT(5)
+
+#define IMX8MP_MEDIAMIX_PWRDNACKN BIT(30)
+#define IMX8MP_HDMIMIX_PWRDNACKN BIT(29)
+#define IMX8MP_HSIOMIX_PWRDNACKN BIT(28)
+#define IMX8MP_VPUMIX_PWRDNACKN BIT(26)
+#define IMX8MP_GPUMIX_PWRDNACKN BIT(25)
+#define IMX8MP_MLMIX_PWRDNACKN (BIT(23) | BIT(24))
+#define IMX8MP_AUDIOMIX_PWRDNACKN (BIT(20) | BIT(31))
+#define IMX8MP_MEDIAMIX_PWRDNREQN BIT(14)
+#define IMX8MP_HDMIMIX_PWRDNREQN BIT(13)
+#define IMX8MP_HSIOMIX_PWRDNREQN BIT(12)
+#define IMX8MP_VPUMIX_PWRDNREQN BIT(10)
+#define IMX8MP_GPUMIX_PWRDNREQN BIT(9)
+#define IMX8MP_MLMIX_PWRDNREQN (BIT(7) | BIT(8))
+#define IMX8MP_AUDIOMIX_PWRDNREQN (BIT(4) | BIT(15))
+
+/*
+ * The PGC offset values in Reference Manual
+ * (Rev. 1, 01/2018 and the older ones) GPC chapter's
+ * GPC_PGC memory map are incorrect, below offset
+ * values are from design RTL.
+ */
+#define IMX7_PGC_MIPI 16
+#define IMX7_PGC_PCIE 17
+#define IMX7_PGC_USB_HSIC 20
+
+#define IMX8M_PGC_MIPI 16
+#define IMX8M_PGC_PCIE1 17
+#define IMX8M_PGC_OTG1 18
+#define IMX8M_PGC_OTG2 19
+#define IMX8M_PGC_DDR1 21
+#define IMX8M_PGC_GPU 23
+#define IMX8M_PGC_VPU 24
+#define IMX8M_PGC_DISP 26
+#define IMX8M_PGC_MIPI_CSI1 27
+#define IMX8M_PGC_MIPI_CSI2 28
+#define IMX8M_PGC_PCIE2 29
+
+#define IMX8MM_PGC_MIPI 16
+#define IMX8MM_PGC_PCIE 17
+#define IMX8MM_PGC_OTG1 18
+#define IMX8MM_PGC_OTG2 19
+#define IMX8MM_PGC_DDR1 21
+#define IMX8MM_PGC_GPU2D 22
+#define IMX8MM_PGC_GPUMIX 23
+#define IMX8MM_PGC_VPUMIX 24
+#define IMX8MM_PGC_GPU3D 25
+#define IMX8MM_PGC_DISPMIX 26
+#define IMX8MM_PGC_VPUG1 27
+#define IMX8MM_PGC_VPUG2 28
+#define IMX8MM_PGC_VPUH1 29
+
+#define IMX8MN_PGC_MIPI 16
+#define IMX8MN_PGC_OTG1 18
+#define IMX8MN_PGC_DDR1 21
+#define IMX8MN_PGC_GPUMIX 23
+#define IMX8MN_PGC_DISPMIX 26
+
+#define IMX8MP_PGC_NOC 9
+#define IMX8MP_PGC_MIPI1 12
+#define IMX8MP_PGC_PCIE 13
+#define IMX8MP_PGC_USB1 14
+#define IMX8MP_PGC_USB2 15
+#define IMX8MP_PGC_MLMIX 16
+#define IMX8MP_PGC_AUDIOMIX 17
+#define IMX8MP_PGC_GPU2D 18
+#define IMX8MP_PGC_GPUMIX 19
+#define IMX8MP_PGC_VPUMIX 20
+#define IMX8MP_PGC_GPU3D 21
+#define IMX8MP_PGC_MEDIAMIX 22
+#define IMX8MP_PGC_VPU_G1 23
+#define IMX8MP_PGC_VPU_G2 24
+#define IMX8MP_PGC_VPU_VC8000E 25
+#define IMX8MP_PGC_HDMIMIX 26
+#define IMX8MP_PGC_HDMI 27
+#define IMX8MP_PGC_MIPI2 28
+#define IMX8MP_PGC_HSIOMIX 29
+#define IMX8MP_PGC_MEDIA_ISP_DWP 30
+#define IMX8MP_PGC_DDRMIX 31
+
+#define GPC_PGC_CTRL(n) (0x800 + (n) * 0x40)
+#define GPC_PGC_SR(n) (GPC_PGC_CTRL(n) + 0xc)
+
+#define GPC_PGC_CTRL_PCR BIT(0)
+
+struct imx_pgc_regs {
+ u16 map;
+ u16 pup;
+ u16 pdn;
+ u16 hsk;
+};
+
+struct imx_pgc_domain {
+ struct generic_pm_domain genpd;
+ struct regmap *regmap;
+ const struct imx_pgc_regs *regs;
+ struct regulator *regulator;
+ struct reset_control *reset;
+ struct clk_bulk_data *clks;
+ int num_clks;
+
+ unsigned long pgc;
+
+ const struct {
+ u32 pxx;
+ u32 map;
+ u32 hskreq;
+ u32 hskack;
+ } bits;
+
+ const int voltage;
+ const bool keep_clocks;
+ struct device *dev;
+
+ unsigned int pgc_sw_pup_reg;
+ unsigned int pgc_sw_pdn_reg;
+};
+
+struct imx_pgc_domain_data {
+ const struct imx_pgc_domain *domains;
+ size_t domains_num;
+ const struct regmap_access_table *reg_access_table;
+ const struct imx_pgc_regs *pgc_regs;
+};
+
+static inline struct imx_pgc_domain *
+to_imx_pgc_domain(struct generic_pm_domain *genpd)
+{
+ return container_of(genpd, struct imx_pgc_domain, genpd);
+}
+
+static int imx_pgc_power_up(struct generic_pm_domain *genpd)
+{
+ struct imx_pgc_domain *domain = to_imx_pgc_domain(genpd);
+ u32 reg_val, pgc;
+ int ret;
+
+ ret = pm_runtime_get_sync(domain->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(domain->dev);
+ return ret;
+ }
+
+ if (!IS_ERR(domain->regulator)) {
+ ret = regulator_enable(domain->regulator);
+ if (ret) {
+ dev_err(domain->dev,
+ "failed to enable regulator: %pe\n",
+ ERR_PTR(ret));
+ goto out_put_pm;
+ }
+ }
+
+ reset_control_assert(domain->reset);
+
+ /* Enable reset clocks for all devices in the domain */
+ ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
+ if (ret) {
+ dev_err(domain->dev, "failed to enable reset clocks\n");
+ goto out_regulator_disable;
+ }
+
+ /* delays for reset to propagate */
+ udelay(5);
+
+ if (domain->bits.pxx) {
+ /* request the domain to power up */
+ regmap_update_bits(domain->regmap, domain->regs->pup,
+ domain->bits.pxx, domain->bits.pxx);
+ /*
+ * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
+ * for PUP_REQ/PDN_REQ bit to be cleared
+ */
+ ret = regmap_read_poll_timeout(domain->regmap,
+ domain->regs->pup, reg_val,
+ !(reg_val & domain->bits.pxx),
+ 0, USEC_PER_MSEC);
+ if (ret) {
+ dev_err(domain->dev, "failed to command PGC\n");
+ goto out_clk_disable;
+ }
+
+ /* disable power control */
+ for_each_set_bit(pgc, &domain->pgc, 32) {
+ regmap_clear_bits(domain->regmap, GPC_PGC_CTRL(pgc),
+ GPC_PGC_CTRL_PCR);
+ }
+ }
+
+ /* delay for reset to propagate */
+ udelay(5);
+
+ reset_control_deassert(domain->reset);
+
+ /* request the ADB400 to power up */
+ if (domain->bits.hskreq) {
+ regmap_update_bits(domain->regmap, domain->regs->hsk,
+ domain->bits.hskreq, domain->bits.hskreq);
+
+ /*
+ * ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk, reg_val,
+ * (reg_val & domain->bits.hskack), 0,
+ * USEC_PER_MSEC);
+ * Technically we need the commented code to wait handshake. But that needs
+ * the BLK-CTL module BUS clk-en bit being set.
+ *
+ * There is a separate BLK-CTL module and we will have such a driver for it,
+ * that driver will set the BUS clk-en bit and handshake will be triggered
+ * automatically there. Just add a delay and suppose the handshake finish
+ * after that.
+ */
+ }
+
+ /* Disable reset clocks for all devices in the domain */
+ if (!domain->keep_clocks)
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+ return 0;
+
+out_clk_disable:
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+out_regulator_disable:
+ if (!IS_ERR(domain->regulator))
+ regulator_disable(domain->regulator);
+out_put_pm:
+ pm_runtime_put(domain->dev);
+
+ return ret;
+}
+
+static int imx_pgc_power_down(struct generic_pm_domain *genpd)
+{
+ struct imx_pgc_domain *domain = to_imx_pgc_domain(genpd);
+ u32 reg_val, pgc;
+ int ret;
+
+ /* Enable reset clocks for all devices in the domain */
+ if (!domain->keep_clocks) {
+ ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
+ if (ret) {
+ dev_err(domain->dev, "failed to enable reset clocks\n");
+ return ret;
+ }
+ }
+
+ /* request the ADB400 to power down */
+ if (domain->bits.hskreq) {
+ regmap_clear_bits(domain->regmap, domain->regs->hsk,
+ domain->bits.hskreq);
+
+ ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk,
+ reg_val,
+ !(reg_val & domain->bits.hskack),
+ 0, USEC_PER_MSEC);
+ if (ret) {
+ dev_err(domain->dev, "failed to power down ADB400\n");
+ goto out_clk_disable;
+ }
+ }
+
+ if (domain->bits.pxx) {
+ /* enable power control */
+ for_each_set_bit(pgc, &domain->pgc, 32) {
+ regmap_update_bits(domain->regmap, GPC_PGC_CTRL(pgc),
+ GPC_PGC_CTRL_PCR, GPC_PGC_CTRL_PCR);
+ }
+
+ /* request the domain to power down */
+ regmap_update_bits(domain->regmap, domain->regs->pdn,
+ domain->bits.pxx, domain->bits.pxx);
+ /*
+ * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
+ * for PUP_REQ/PDN_REQ bit to be cleared
+ */
+ ret = regmap_read_poll_timeout(domain->regmap,
+ domain->regs->pdn, reg_val,
+ !(reg_val & domain->bits.pxx),
+ 0, USEC_PER_MSEC);
+ if (ret) {
+ dev_err(domain->dev, "failed to command PGC\n");
+ goto out_clk_disable;
+ }
+ }
+
+ /* Disable reset clocks for all devices in the domain */
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+ if (!IS_ERR(domain->regulator)) {
+ ret = regulator_disable(domain->regulator);
+ if (ret) {
+ dev_err(domain->dev,
+ "failed to disable regulator: %pe\n",
+ ERR_PTR(ret));
+ return ret;
+ }
+ }
+
+ pm_runtime_put_sync_suspend(domain->dev);
+
+ return 0;
+
+out_clk_disable:
+ if (!domain->keep_clocks)
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+ return ret;
+}
+
+static const struct imx_pgc_domain imx7_pgc_domains[] = {
+ [IMX7_POWER_DOMAIN_MIPI_PHY] = {
+ .genpd = {
+ .name = "mipi-phy",
+ },
+ .bits = {
+ .pxx = IMX7_MIPI_PHY_SW_Pxx_REQ,
+ .map = IMX7_MIPI_PHY_A_CORE_DOMAIN,
+ },
+ .voltage = 1000000,
+ .pgc = BIT(IMX7_PGC_MIPI),
+ },
+
+ [IMX7_POWER_DOMAIN_PCIE_PHY] = {
+ .genpd = {
+ .name = "pcie-phy",
+ },
+ .bits = {
+ .pxx = IMX7_PCIE_PHY_SW_Pxx_REQ,
+ .map = IMX7_PCIE_PHY_A_CORE_DOMAIN,
+ },
+ .voltage = 1000000,
+ .pgc = BIT(IMX7_PGC_PCIE),
+ },
+
+ [IMX7_POWER_DOMAIN_USB_HSIC_PHY] = {
+ .genpd = {
+ .name = "usb-hsic-phy",
+ },
+ .bits = {
+ .pxx = IMX7_USB_HSIC_PHY_SW_Pxx_REQ,
+ .map = IMX7_USB_HSIC_PHY_A_CORE_DOMAIN,
+ },
+ .voltage = 1200000,
+ .pgc = BIT(IMX7_PGC_USB_HSIC),
+ },
+};
+
+static const struct regmap_range imx7_yes_ranges[] = {
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+ GPC_M4_PU_PDN_FLG),
+ regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_MIPI),
+ GPC_PGC_SR(IMX7_PGC_MIPI)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_PCIE),
+ GPC_PGC_SR(IMX7_PGC_PCIE)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_USB_HSIC),
+ GPC_PGC_SR(IMX7_PGC_USB_HSIC)),
+};
+
+static const struct regmap_access_table imx7_access_table = {
+ .yes_ranges = imx7_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx7_yes_ranges),
+};
+
+static const struct imx_pgc_regs imx7_pgc_regs = {
+ .map = GPC_PGC_CPU_MAPPING,
+ .pup = GPC_PU_PGC_SW_PUP_REQ,
+ .pdn = GPC_PU_PGC_SW_PDN_REQ,
+ .hsk = GPC_PU_PWRHSK,
+};
+
+static const struct imx_pgc_domain_data imx7_pgc_domain_data = {
+ .domains = imx7_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx7_pgc_domains),
+ .reg_access_table = &imx7_access_table,
+ .pgc_regs = &imx7_pgc_regs,
+};
+
+static const struct imx_pgc_domain imx8m_pgc_domains[] = {
+ [IMX8M_POWER_DOMAIN_MIPI] = {
+ .genpd = {
+ .name = "mipi",
+ },
+ .bits = {
+ .pxx = IMX8M_MIPI_SW_Pxx_REQ,
+ .map = IMX8M_MIPI_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_MIPI),
+ },
+
+ [IMX8M_POWER_DOMAIN_PCIE1] = {
+ .genpd = {
+ .name = "pcie1",
+ },
+ .bits = {
+ .pxx = IMX8M_PCIE1_SW_Pxx_REQ,
+ .map = IMX8M_PCIE1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_PCIE1),
+ },
+
+ [IMX8M_POWER_DOMAIN_USB_OTG1] = {
+ .genpd = {
+ .name = "usb-otg1",
+ },
+ .bits = {
+ .pxx = IMX8M_OTG1_SW_Pxx_REQ,
+ .map = IMX8M_OTG1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_OTG1),
+ },
+
+ [IMX8M_POWER_DOMAIN_USB_OTG2] = {
+ .genpd = {
+ .name = "usb-otg2",
+ },
+ .bits = {
+ .pxx = IMX8M_OTG2_SW_Pxx_REQ,
+ .map = IMX8M_OTG2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_OTG2),
+ },
+
+ [IMX8M_POWER_DOMAIN_DDR1] = {
+ .genpd = {
+ .name = "ddr1",
+ },
+ .bits = {
+ .pxx = IMX8M_DDR1_SW_Pxx_REQ,
+ .map = IMX8M_DDR2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_DDR1),
+ },
+
+ [IMX8M_POWER_DOMAIN_GPU] = {
+ .genpd = {
+ .name = "gpu",
+ },
+ .bits = {
+ .pxx = IMX8M_GPU_SW_Pxx_REQ,
+ .map = IMX8M_GPU_A53_DOMAIN,
+ .hskreq = IMX8M_GPU_HSK_PWRDNREQN,
+ .hskack = IMX8M_GPU_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8M_PGC_GPU),
+ },
+
+ [IMX8M_POWER_DOMAIN_VPU] = {
+ .genpd = {
+ .name = "vpu",
+ },
+ .bits = {
+ .pxx = IMX8M_VPU_SW_Pxx_REQ,
+ .map = IMX8M_VPU_A53_DOMAIN,
+ .hskreq = IMX8M_VPU_HSK_PWRDNREQN,
+ .hskack = IMX8M_VPU_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8M_PGC_VPU),
+ .keep_clocks = true,
+ },
+
+ [IMX8M_POWER_DOMAIN_DISP] = {
+ .genpd = {
+ .name = "disp",
+ },
+ .bits = {
+ .pxx = IMX8M_DISP_SW_Pxx_REQ,
+ .map = IMX8M_DISP_A53_DOMAIN,
+ .hskreq = IMX8M_DISP_HSK_PWRDNREQN,
+ .hskack = IMX8M_DISP_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8M_PGC_DISP),
+ },
+
+ [IMX8M_POWER_DOMAIN_MIPI_CSI1] = {
+ .genpd = {
+ .name = "mipi-csi1",
+ },
+ .bits = {
+ .pxx = IMX8M_MIPI_CSI1_SW_Pxx_REQ,
+ .map = IMX8M_MIPI_CSI1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_MIPI_CSI1),
+ },
+
+ [IMX8M_POWER_DOMAIN_MIPI_CSI2] = {
+ .genpd = {
+ .name = "mipi-csi2",
+ },
+ .bits = {
+ .pxx = IMX8M_MIPI_CSI2_SW_Pxx_REQ,
+ .map = IMX8M_MIPI_CSI2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_MIPI_CSI2),
+ },
+
+ [IMX8M_POWER_DOMAIN_PCIE2] = {
+ .genpd = {
+ .name = "pcie2",
+ },
+ .bits = {
+ .pxx = IMX8M_PCIE2_SW_Pxx_REQ,
+ .map = IMX8M_PCIE2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8M_PGC_PCIE2),
+ },
+};
+
+static const struct regmap_range imx8m_yes_ranges[] = {
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+ GPC_PU_PWRHSK),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI),
+ GPC_PGC_SR(IMX8M_PGC_MIPI)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE1),
+ GPC_PGC_SR(IMX8M_PGC_PCIE1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG1),
+ GPC_PGC_SR(IMX8M_PGC_OTG1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG2),
+ GPC_PGC_SR(IMX8M_PGC_OTG2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DDR1),
+ GPC_PGC_SR(IMX8M_PGC_DDR1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_GPU),
+ GPC_PGC_SR(IMX8M_PGC_GPU)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_VPU),
+ GPC_PGC_SR(IMX8M_PGC_VPU)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DISP),
+ GPC_PGC_SR(IMX8M_PGC_DISP)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI1),
+ GPC_PGC_SR(IMX8M_PGC_MIPI_CSI1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI2),
+ GPC_PGC_SR(IMX8M_PGC_MIPI_CSI2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE2),
+ GPC_PGC_SR(IMX8M_PGC_PCIE2)),
+};
+
+static const struct regmap_access_table imx8m_access_table = {
+ .yes_ranges = imx8m_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx8m_yes_ranges),
+};
+
+static const struct imx_pgc_domain_data imx8m_pgc_domain_data = {
+ .domains = imx8m_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx8m_pgc_domains),
+ .reg_access_table = &imx8m_access_table,
+ .pgc_regs = &imx7_pgc_regs,
+};
+
+static const struct imx_pgc_domain imx8mm_pgc_domains[] = {
+ [IMX8MM_POWER_DOMAIN_HSIOMIX] = {
+ .genpd = {
+ .name = "hsiomix",
+ },
+ .bits = {
+ .pxx = 0, /* no power sequence control */
+ .map = 0, /* no power sequence control */
+ .hskreq = IMX8MM_HSIO_HSK_PWRDNREQN,
+ .hskack = IMX8MM_HSIO_HSK_PWRDNACKN,
+ },
+ .keep_clocks = true,
+ },
+
+ [IMX8MM_POWER_DOMAIN_PCIE] = {
+ .genpd = {
+ .name = "pcie",
+ },
+ .bits = {
+ .pxx = IMX8MM_PCIE_SW_Pxx_REQ,
+ .map = IMX8MM_PCIE_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_PCIE),
+ },
+
+ [IMX8MM_POWER_DOMAIN_OTG1] = {
+ .genpd = {
+ .name = "usb-otg1",
+ .flags = GENPD_FLAG_ACTIVE_WAKEUP,
+ },
+ .bits = {
+ .pxx = IMX8MM_OTG1_SW_Pxx_REQ,
+ .map = IMX8MM_OTG1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_OTG1),
+ },
+
+ [IMX8MM_POWER_DOMAIN_OTG2] = {
+ .genpd = {
+ .name = "usb-otg2",
+ .flags = GENPD_FLAG_ACTIVE_WAKEUP,
+ },
+ .bits = {
+ .pxx = IMX8MM_OTG2_SW_Pxx_REQ,
+ .map = IMX8MM_OTG2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_OTG2),
+ },
+
+ [IMX8MM_POWER_DOMAIN_GPUMIX] = {
+ .genpd = {
+ .name = "gpumix",
+ },
+ .bits = {
+ .pxx = IMX8MM_GPUMIX_SW_Pxx_REQ,
+ .map = IMX8MM_GPUMIX_A53_DOMAIN,
+ .hskreq = IMX8MM_GPUMIX_HSK_PWRDNREQN,
+ .hskack = IMX8MM_GPUMIX_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MM_PGC_GPUMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MM_POWER_DOMAIN_GPU] = {
+ .genpd = {
+ .name = "gpu",
+ },
+ .bits = {
+ .pxx = IMX8MM_GPU_SW_Pxx_REQ,
+ .map = IMX8MM_GPU_A53_DOMAIN,
+ .hskreq = IMX8MM_GPU_HSK_PWRDNREQN,
+ .hskack = IMX8MM_GPU_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MM_PGC_GPU2D) | BIT(IMX8MM_PGC_GPU3D),
+ },
+
+ [IMX8MM_POWER_DOMAIN_VPUMIX] = {
+ .genpd = {
+ .name = "vpumix",
+ },
+ .bits = {
+ .pxx = IMX8MM_VPUMIX_SW_Pxx_REQ,
+ .map = IMX8MM_VPUMIX_A53_DOMAIN,
+ .hskreq = IMX8MM_VPUMIX_HSK_PWRDNREQN,
+ .hskack = IMX8MM_VPUMIX_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MM_PGC_VPUMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MM_POWER_DOMAIN_VPUG1] = {
+ .genpd = {
+ .name = "vpu-g1",
+ },
+ .bits = {
+ .pxx = IMX8MM_VPUG1_SW_Pxx_REQ,
+ .map = IMX8MM_VPUG1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_VPUG1),
+ },
+
+ [IMX8MM_POWER_DOMAIN_VPUG2] = {
+ .genpd = {
+ .name = "vpu-g2",
+ },
+ .bits = {
+ .pxx = IMX8MM_VPUG2_SW_Pxx_REQ,
+ .map = IMX8MM_VPUG2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_VPUG2),
+ },
+
+ [IMX8MM_POWER_DOMAIN_VPUH1] = {
+ .genpd = {
+ .name = "vpu-h1",
+ },
+ .bits = {
+ .pxx = IMX8MM_VPUH1_SW_Pxx_REQ,
+ .map = IMX8MM_VPUH1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_VPUH1),
+ .keep_clocks = true,
+ },
+
+ [IMX8MM_POWER_DOMAIN_DISPMIX] = {
+ .genpd = {
+ .name = "dispmix",
+ },
+ .bits = {
+ .pxx = IMX8MM_DISPMIX_SW_Pxx_REQ,
+ .map = IMX8MM_DISPMIX_A53_DOMAIN,
+ .hskreq = IMX8MM_DISPMIX_HSK_PWRDNREQN,
+ .hskack = IMX8MM_DISPMIX_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MM_PGC_DISPMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MM_POWER_DOMAIN_MIPI] = {
+ .genpd = {
+ .name = "mipi",
+ },
+ .bits = {
+ .pxx = IMX8MM_MIPI_SW_Pxx_REQ,
+ .map = IMX8MM_MIPI_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MM_PGC_MIPI),
+ },
+};
+
+static const struct regmap_range imx8mm_yes_ranges[] = {
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+ GPC_PU_PWRHSK),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_MIPI),
+ GPC_PGC_SR(IMX8MM_PGC_MIPI)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_PCIE),
+ GPC_PGC_SR(IMX8MM_PGC_PCIE)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG1),
+ GPC_PGC_SR(IMX8MM_PGC_OTG1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG2),
+ GPC_PGC_SR(IMX8MM_PGC_OTG2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_DDR1),
+ GPC_PGC_SR(IMX8MM_PGC_DDR1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPU2D),
+ GPC_PGC_SR(IMX8MM_PGC_GPU2D)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPUMIX),
+ GPC_PGC_SR(IMX8MM_PGC_GPUMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUMIX),
+ GPC_PGC_SR(IMX8MM_PGC_VPUMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPU3D),
+ GPC_PGC_SR(IMX8MM_PGC_GPU3D)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_DISPMIX),
+ GPC_PGC_SR(IMX8MM_PGC_DISPMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUG1),
+ GPC_PGC_SR(IMX8MM_PGC_VPUG1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUG2),
+ GPC_PGC_SR(IMX8MM_PGC_VPUG2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUH1),
+ GPC_PGC_SR(IMX8MM_PGC_VPUH1)),
+};
+
+static const struct regmap_access_table imx8mm_access_table = {
+ .yes_ranges = imx8mm_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx8mm_yes_ranges),
+};
+
+static const struct imx_pgc_domain_data imx8mm_pgc_domain_data = {
+ .domains = imx8mm_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx8mm_pgc_domains),
+ .reg_access_table = &imx8mm_access_table,
+ .pgc_regs = &imx7_pgc_regs,
+};
+
+static const struct imx_pgc_domain imx8mp_pgc_domains[] = {
+ [IMX8MP_POWER_DOMAIN_MIPI_PHY1] = {
+ .genpd = {
+ .name = "mipi-phy1",
+ },
+ .bits = {
+ .pxx = IMX8MP_MIPI_PHY1_SW_Pxx_REQ,
+ .map = IMX8MP_MIPI_PHY1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_MIPI1),
+ },
+
+ [IMX8MP_POWER_DOMAIN_PCIE_PHY] = {
+ .genpd = {
+ .name = "pcie-phy1",
+ },
+ .bits = {
+ .pxx = IMX8MP_PCIE_PHY_SW_Pxx_REQ,
+ .map = IMX8MP_PCIE_PHY_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_PCIE),
+ },
+
+ [IMX8MP_POWER_DOMAIN_USB1_PHY] = {
+ .genpd = {
+ .name = "usb-otg1",
+ },
+ .bits = {
+ .pxx = IMX8MP_USB1_PHY_Pxx_REQ,
+ .map = IMX8MP_USB1_PHY_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_USB1),
+ },
+
+ [IMX8MP_POWER_DOMAIN_USB2_PHY] = {
+ .genpd = {
+ .name = "usb-otg2",
+ },
+ .bits = {
+ .pxx = IMX8MP_USB2_PHY_Pxx_REQ,
+ .map = IMX8MP_USB2_PHY_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_USB2),
+ },
+
+ [IMX8MP_POWER_DOMAIN_MLMIX] = {
+ .genpd = {
+ .name = "mlmix",
+ },
+ .bits = {
+ .pxx = IMX8MP_MLMIX_Pxx_REQ,
+ .map = IMX8MP_MLMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_MLMIX_PWRDNREQN,
+ .hskack = IMX8MP_MLMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_MLMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_AUDIOMIX] = {
+ .genpd = {
+ .name = "audiomix",
+ },
+ .bits = {
+ .pxx = IMX8MP_AUDIOMIX_Pxx_REQ,
+ .map = IMX8MP_AUDIOMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_AUDIOMIX_PWRDNREQN,
+ .hskack = IMX8MP_AUDIOMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_AUDIOMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_GPU2D] = {
+ .genpd = {
+ .name = "gpu2d",
+ },
+ .bits = {
+ .pxx = IMX8MP_GPU_2D_Pxx_REQ,
+ .map = IMX8MP_GPU2D_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_GPU2D),
+ },
+
+ [IMX8MP_POWER_DOMAIN_GPUMIX] = {
+ .genpd = {
+ .name = "gpumix",
+ },
+ .bits = {
+ .pxx = IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ,
+ .map = IMX8MP_GPUMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_GPUMIX_PWRDNREQN,
+ .hskack = IMX8MP_GPUMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_GPUMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_VPUMIX] = {
+ .genpd = {
+ .name = "vpumix",
+ },
+ .bits = {
+ .pxx = IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ,
+ .map = IMX8MP_VPUMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_VPUMIX_PWRDNREQN,
+ .hskack = IMX8MP_VPUMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_VPUMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_GPU3D] = {
+ .genpd = {
+ .name = "gpu3d",
+ },
+ .bits = {
+ .pxx = IMX8MP_GPU_3D_Pxx_REQ,
+ .map = IMX8MP_GPU3D_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_GPU3D),
+ },
+
+ [IMX8MP_POWER_DOMAIN_MEDIAMIX] = {
+ .genpd = {
+ .name = "mediamix",
+ },
+ .bits = {
+ .pxx = IMX8MP_MEDIMIX_Pxx_REQ,
+ .map = IMX8MP_MEDIAMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_MEDIAMIX_PWRDNREQN,
+ .hskack = IMX8MP_MEDIAMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_MEDIAMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_VPU_G1] = {
+ .genpd = {
+ .name = "vpu-g1",
+ },
+ .bits = {
+ .pxx = IMX8MP_VPU_G1_Pxx_REQ,
+ .map = IMX8MP_VPU_G1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_VPU_G1),
+ },
+
+ [IMX8MP_POWER_DOMAIN_VPU_G2] = {
+ .genpd = {
+ .name = "vpu-g2",
+ },
+ .bits = {
+ .pxx = IMX8MP_VPU_G2_Pxx_REQ,
+ .map = IMX8MP_VPU_G2_A53_DOMAIN
+ },
+ .pgc = BIT(IMX8MP_PGC_VPU_G2),
+ },
+
+ [IMX8MP_POWER_DOMAIN_VPU_VC8000E] = {
+ .genpd = {
+ .name = "vpu-h1",
+ },
+ .bits = {
+ .pxx = IMX8MP_VPU_VC8K_Pxx_REQ,
+ .map = IMX8MP_VPU_VC8000E_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_VPU_VC8000E),
+ },
+
+ [IMX8MP_POWER_DOMAIN_HDMIMIX] = {
+ .genpd = {
+ .name = "hdmimix",
+ },
+ .bits = {
+ .pxx = IMX8MP_HDMIMIX_Pxx_REQ,
+ .map = IMX8MP_HDMIMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_HDMIMIX_PWRDNREQN,
+ .hskack = IMX8MP_HDMIMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_HDMIMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_HDMI_PHY] = {
+ .genpd = {
+ .name = "hdmi-phy",
+ },
+ .bits = {
+ .pxx = IMX8MP_HDMI_PHY_Pxx_REQ,
+ .map = IMX8MP_HDMI_PHY_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_HDMI),
+ },
+
+ [IMX8MP_POWER_DOMAIN_MIPI_PHY2] = {
+ .genpd = {
+ .name = "mipi-phy2",
+ },
+ .bits = {
+ .pxx = IMX8MP_MIPI_PHY2_Pxx_REQ,
+ .map = IMX8MP_MIPI_PHY2_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_MIPI2),
+ },
+
+ [IMX8MP_POWER_DOMAIN_HSIOMIX] = {
+ .genpd = {
+ .name = "hsiomix",
+ },
+ .bits = {
+ .pxx = IMX8MP_HSIOMIX_Pxx_REQ,
+ .map = IMX8MP_HSIOMIX_A53_DOMAIN,
+ .hskreq = IMX8MP_HSIOMIX_PWRDNREQN,
+ .hskack = IMX8MP_HSIOMIX_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MP_PGC_HSIOMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MP_POWER_DOMAIN_MEDIAMIX_ISPDWP] = {
+ .genpd = {
+ .name = "mediamix-isp-dwp",
+ },
+ .bits = {
+ .pxx = IMX8MP_MEDIA_ISP_DWP_Pxx_REQ,
+ .map = IMX8MP_MEDIA_ISPDWP_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MP_PGC_MEDIA_ISP_DWP),
+ },
+};
+
+static const struct regmap_range imx8mp_yes_ranges[] = {
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+ IMX8MP_GPC_PGC_CPU_MAPPING),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_NOC),
+ GPC_PGC_SR(IMX8MP_PGC_NOC)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI1),
+ GPC_PGC_SR(IMX8MP_PGC_MIPI1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_PCIE),
+ GPC_PGC_SR(IMX8MP_PGC_PCIE)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB1),
+ GPC_PGC_SR(IMX8MP_PGC_USB1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB2),
+ GPC_PGC_SR(IMX8MP_PGC_USB2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MLMIX),
+ GPC_PGC_SR(IMX8MP_PGC_MLMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_AUDIOMIX),
+ GPC_PGC_SR(IMX8MP_PGC_AUDIOMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU2D),
+ GPC_PGC_SR(IMX8MP_PGC_GPU2D)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPUMIX),
+ GPC_PGC_SR(IMX8MP_PGC_GPUMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPUMIX),
+ GPC_PGC_SR(IMX8MP_PGC_VPUMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU3D),
+ GPC_PGC_SR(IMX8MP_PGC_GPU3D)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIAMIX),
+ GPC_PGC_SR(IMX8MP_PGC_MEDIAMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G1),
+ GPC_PGC_SR(IMX8MP_PGC_VPU_G1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G2),
+ GPC_PGC_SR(IMX8MP_PGC_VPU_G2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_VC8000E),
+ GPC_PGC_SR(IMX8MP_PGC_VPU_VC8000E)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMIMIX),
+ GPC_PGC_SR(IMX8MP_PGC_HDMIMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMI),
+ GPC_PGC_SR(IMX8MP_PGC_HDMI)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI2),
+ GPC_PGC_SR(IMX8MP_PGC_MIPI2)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HSIOMIX),
+ GPC_PGC_SR(IMX8MP_PGC_HSIOMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIA_ISP_DWP),
+ GPC_PGC_SR(IMX8MP_PGC_MEDIA_ISP_DWP)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_DDRMIX),
+ GPC_PGC_SR(IMX8MP_PGC_DDRMIX)),
+};
+
+static const struct regmap_access_table imx8mp_access_table = {
+ .yes_ranges = imx8mp_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx8mp_yes_ranges),
+};
+
+static const struct imx_pgc_regs imx8mp_pgc_regs = {
+ .map = IMX8MP_GPC_PGC_CPU_MAPPING,
+ .pup = IMX8MP_GPC_PU_PGC_SW_PUP_REQ,
+ .pdn = IMX8MP_GPC_PU_PGC_SW_PDN_REQ,
+ .hsk = IMX8MP_GPC_PU_PWRHSK,
+};
+static const struct imx_pgc_domain_data imx8mp_pgc_domain_data = {
+ .domains = imx8mp_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx8mp_pgc_domains),
+ .reg_access_table = &imx8mp_access_table,
+ .pgc_regs = &imx8mp_pgc_regs,
+};
+
+static const struct imx_pgc_domain imx8mn_pgc_domains[] = {
+ [IMX8MN_POWER_DOMAIN_HSIOMIX] = {
+ .genpd = {
+ .name = "hsiomix",
+ },
+ .bits = {
+ .pxx = 0, /* no power sequence control */
+ .map = 0, /* no power sequence control */
+ .hskreq = IMX8MN_HSIO_HSK_PWRDNREQN,
+ .hskack = IMX8MN_HSIO_HSK_PWRDNACKN,
+ },
+ .keep_clocks = true,
+ },
+
+ [IMX8MN_POWER_DOMAIN_OTG1] = {
+ .genpd = {
+ .name = "usb-otg1",
+ .flags = GENPD_FLAG_ACTIVE_WAKEUP,
+ },
+ .bits = {
+ .pxx = IMX8MN_OTG1_SW_Pxx_REQ,
+ .map = IMX8MN_OTG1_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MN_PGC_OTG1),
+ },
+
+ [IMX8MN_POWER_DOMAIN_GPUMIX] = {
+ .genpd = {
+ .name = "gpumix",
+ },
+ .bits = {
+ .pxx = IMX8MN_GPUMIX_SW_Pxx_REQ,
+ .map = IMX8MN_GPUMIX_A53_DOMAIN,
+ .hskreq = IMX8MN_GPUMIX_HSK_PWRDNREQN,
+ .hskack = IMX8MN_GPUMIX_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MN_PGC_GPUMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MN_POWER_DOMAIN_DISPMIX] = {
+ .genpd = {
+ .name = "dispmix",
+ },
+ .bits = {
+ .pxx = IMX8MN_DISPMIX_SW_Pxx_REQ,
+ .map = IMX8MN_DISPMIX_A53_DOMAIN,
+ .hskreq = IMX8MN_DISPMIX_HSK_PWRDNREQN,
+ .hskack = IMX8MN_DISPMIX_HSK_PWRDNACKN,
+ },
+ .pgc = BIT(IMX8MN_PGC_DISPMIX),
+ .keep_clocks = true,
+ },
+
+ [IMX8MN_POWER_DOMAIN_MIPI] = {
+ .genpd = {
+ .name = "mipi",
+ },
+ .bits = {
+ .pxx = IMX8MN_MIPI_SW_Pxx_REQ,
+ .map = IMX8MN_MIPI_A53_DOMAIN,
+ },
+ .pgc = BIT(IMX8MN_PGC_MIPI),
+ },
+};
+
+static const struct regmap_range imx8mn_yes_ranges[] = {
+ regmap_reg_range(GPC_LPCR_A_CORE_BSC,
+ GPC_PU_PWRHSK),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_MIPI),
+ GPC_PGC_SR(IMX8MN_PGC_MIPI)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_OTG1),
+ GPC_PGC_SR(IMX8MN_PGC_OTG1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_DDR1),
+ GPC_PGC_SR(IMX8MN_PGC_DDR1)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_GPUMIX),
+ GPC_PGC_SR(IMX8MN_PGC_GPUMIX)),
+ regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_DISPMIX),
+ GPC_PGC_SR(IMX8MN_PGC_DISPMIX)),
+};
+
+static const struct regmap_access_table imx8mn_access_table = {
+ .yes_ranges = imx8mn_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx8mn_yes_ranges),
+};
+
+static const struct imx_pgc_domain_data imx8mn_pgc_domain_data = {
+ .domains = imx8mn_pgc_domains,
+ .domains_num = ARRAY_SIZE(imx8mn_pgc_domains),
+ .reg_access_table = &imx8mn_access_table,
+ .pgc_regs = &imx7_pgc_regs,
+};
+
+static int imx_pgc_domain_probe(struct platform_device *pdev)
+{
+ struct imx_pgc_domain *domain = pdev->dev.platform_data;
+ int ret;
+
+ domain->dev = &pdev->dev;
+
+ domain->regulator = devm_regulator_get_optional(domain->dev, "power");
+ if (IS_ERR(domain->regulator)) {
+ if (PTR_ERR(domain->regulator) != -ENODEV)
+ return dev_err_probe(domain->dev, PTR_ERR(domain->regulator),
+ "Failed to get domain's regulator\n");
+ } else if (domain->voltage) {
+ regulator_set_voltage(domain->regulator,
+ domain->voltage, domain->voltage);
+ }
+
+ domain->num_clks = devm_clk_bulk_get_all(domain->dev, &domain->clks);
+ if (domain->num_clks < 0)
+ return dev_err_probe(domain->dev, domain->num_clks,
+ "Failed to get domain's clocks\n");
+
+ domain->reset = devm_reset_control_array_get_optional_exclusive(domain->dev);
+ if (IS_ERR(domain->reset))
+ return dev_err_probe(domain->dev, PTR_ERR(domain->reset),
+ "Failed to get domain's resets\n");
+
+ pm_runtime_enable(domain->dev);
+
+ if (domain->bits.map)
+ regmap_update_bits(domain->regmap, domain->regs->map,
+ domain->bits.map, domain->bits.map);
+
+ ret = pm_genpd_init(&domain->genpd, NULL, true);
+ if (ret) {
+ dev_err(domain->dev, "Failed to init power domain\n");
+ goto out_domain_unmap;
+ }
+
+ if (IS_ENABLED(CONFIG_LOCKDEP) &&
+ of_property_read_bool(domain->dev->of_node, "power-domains"))
+ lockdep_set_subclass(&domain->genpd.mlock, 1);
+
+ ret = of_genpd_add_provider_simple(domain->dev->of_node,
+ &domain->genpd);
+ if (ret) {
+ dev_err(domain->dev, "Failed to add genpd provider\n");
+ goto out_genpd_remove;
+ }
+
+ return 0;
+
+out_genpd_remove:
+ pm_genpd_remove(&domain->genpd);
+out_domain_unmap:
+ if (domain->bits.map)
+ regmap_update_bits(domain->regmap, domain->regs->map,
+ domain->bits.map, 0);
+ pm_runtime_disable(domain->dev);
+
+ return ret;
+}
+
+static int imx_pgc_domain_remove(struct platform_device *pdev)
+{
+ struct imx_pgc_domain *domain = pdev->dev.platform_data;
+
+ of_genpd_del_provider(domain->dev->of_node);
+ pm_genpd_remove(&domain->genpd);
+
+ if (domain->bits.map)
+ regmap_update_bits(domain->regmap, domain->regs->map,
+ domain->bits.map, 0);
+
+ pm_runtime_disable(domain->dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int imx_pgc_domain_suspend(struct device *dev)
+{
+ int ret;
+
+ /*
+ * This may look strange, but is done so the generic PM_SLEEP code
+ * can power down our domain and more importantly power it up again
+ * after resume, without tripping over our usage of runtime PM to
+ * power up/down the nested domains.
+ */
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(dev);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int imx_pgc_domain_resume(struct device *dev)
+{
+ return pm_runtime_put(dev);
+}
+#endif
+
+static const struct dev_pm_ops imx_pgc_domain_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(imx_pgc_domain_suspend, imx_pgc_domain_resume)
+};
+
+static const struct platform_device_id imx_pgc_domain_id[] = {
+ { "imx-pgc-domain", },
+ { },
+};
+
+static struct platform_driver imx_pgc_domain_driver = {
+ .driver = {
+ .name = "imx-pgc",
+ .pm = &imx_pgc_domain_pm_ops,
+ },
+ .probe = imx_pgc_domain_probe,
+ .remove = imx_pgc_domain_remove,
+ .id_table = imx_pgc_domain_id,
+};
+builtin_platform_driver(imx_pgc_domain_driver)
+
+static int imx_gpcv2_probe(struct platform_device *pdev)
+{
+ const struct imx_pgc_domain_data *domain_data =
+ of_device_get_match_data(&pdev->dev);
+
+ struct regmap_config regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .rd_table = domain_data->reg_access_table,
+ .wr_table = domain_data->reg_access_table,
+ .max_register = SZ_4K,
+ };
+ struct device *dev = &pdev->dev;
+ struct device_node *pgc_np, *np;
+ struct regmap *regmap;
+ void __iomem *base;
+ int ret;
+
+ pgc_np = of_get_child_by_name(dev->of_node, "pgc");
+ if (!pgc_np) {
+ dev_err(dev, "No power domains specified in DT\n");
+ return -EINVAL;
+ }
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap = devm_regmap_init_mmio(dev, base, ®map_config);
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ dev_err(dev, "failed to init regmap (%d)\n", ret);
+ return ret;
+ }
+
+ for_each_child_of_node(pgc_np, np) {
+ struct platform_device *pd_pdev;
+ struct imx_pgc_domain *domain;
+ u32 domain_index;
+
+ if (!of_device_is_available(np))
+ continue;
+
+ ret = of_property_read_u32(np, "reg", &domain_index);
+ if (ret) {
+ dev_err(dev, "Failed to read 'reg' property\n");
+ of_node_put(np);
+ return ret;
+ }
+
+ if (domain_index >= domain_data->domains_num) {
+ dev_warn(dev,
+ "Domain index %d is out of bounds\n",
+ domain_index);
+ continue;
+ }
+
+ pd_pdev = platform_device_alloc("imx-pgc-domain",
+ domain_index);
+ if (!pd_pdev) {
+ dev_err(dev, "Failed to allocate platform device\n");
+ of_node_put(np);
+ return -ENOMEM;
+ }
+
+ ret = platform_device_add_data(pd_pdev,
+ &domain_data->domains[domain_index],
+ sizeof(domain_data->domains[domain_index]));
+ if (ret) {
+ platform_device_put(pd_pdev);
+ of_node_put(np);
+ return ret;
+ }
+
+ domain = pd_pdev->dev.platform_data;
+ domain->regmap = regmap;
+ domain->regs = domain_data->pgc_regs;
+
+ domain->genpd.power_on = imx_pgc_power_up;
+ domain->genpd.power_off = imx_pgc_power_down;
+
+ pd_pdev->dev.parent = dev;
+ device_set_node(&pd_pdev->dev, of_fwnode_handle(np));
+
+ ret = platform_device_add(pd_pdev);
+ if (ret) {
+ platform_device_put(pd_pdev);
+ of_node_put(np);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static const struct of_device_id imx_gpcv2_dt_ids[] = {
+ { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
+ { .compatible = "fsl,imx8mm-gpc", .data = &imx8mm_pgc_domain_data, },
+ { .compatible = "fsl,imx8mn-gpc", .data = &imx8mn_pgc_domain_data, },
+ { .compatible = "fsl,imx8mp-gpc", .data = &imx8mp_pgc_domain_data, },
+ { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
+ { }
+};
+
+static struct platform_driver imx_gpc_driver = {
+ .driver = {
+ .name = "imx-gpcv2",
+ .of_match_table = imx_gpcv2_dt_ids,
+ },
+ .probe = imx_gpcv2_probe,
+};
+builtin_platform_driver(imx_gpc_driver)
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2021 Pengutronix, Lucas Stach <kernel@pengutronix.de>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/device.h>
+#include <linux/interconnect.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/clk.h>
+
+#include <dt-bindings/power/imx8mm-power.h>
+#include <dt-bindings/power/imx8mn-power.h>
+#include <dt-bindings/power/imx8mp-power.h>
+#include <dt-bindings/power/imx8mq-power.h>
+
+#define BLK_SFT_RSTN 0x0
+#define BLK_CLK_EN 0x4
+#define BLK_MIPI_RESET_DIV 0x8 /* Mini/Nano/Plus DISPLAY_BLK_CTRL only */
+
+struct imx8m_blk_ctrl_domain;
+
+struct imx8m_blk_ctrl {
+ struct device *dev;
+ struct notifier_block power_nb;
+ struct device *bus_power_dev;
+ struct regmap *regmap;
+ struct imx8m_blk_ctrl_domain *domains;
+ struct genpd_onecell_data onecell_data;
+};
+
+struct imx8m_blk_ctrl_domain_data {
+ const char *name;
+ const char * const *clk_names;
+ const char * const *path_names;
+ const char *gpc_name;
+ int num_clks;
+ int num_paths;
+ u32 rst_mask;
+ u32 clk_mask;
+
+ /*
+ * i.MX8M Mini, Nano and Plus have a third DISPLAY_BLK_CTRL register
+ * which is used to control the reset for the MIPI Phy.
+ * Since it's only present in certain circumstances,
+ * an if-statement should be used before setting and clearing this
+ * register.
+ */
+ u32 mipi_phy_rst_mask;
+};
+
+#define DOMAIN_MAX_CLKS 4
+#define DOMAIN_MAX_PATHS 4
+
+struct imx8m_blk_ctrl_domain {
+ struct generic_pm_domain genpd;
+ const struct imx8m_blk_ctrl_domain_data *data;
+ struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
+ struct icc_bulk_data paths[DOMAIN_MAX_PATHS];
+ struct device *power_dev;
+ struct imx8m_blk_ctrl *bc;
+ int num_paths;
+};
+
+struct imx8m_blk_ctrl_data {
+ int max_reg;
+ notifier_fn_t power_notifier_fn;
+ const struct imx8m_blk_ctrl_domain_data *domains;
+ int num_domains;
+};
+
+static inline struct imx8m_blk_ctrl_domain *
+to_imx8m_blk_ctrl_domain(struct generic_pm_domain *genpd)
+{
+ return container_of(genpd, struct imx8m_blk_ctrl_domain, genpd);
+}
+
+static int imx8m_blk_ctrl_power_on(struct generic_pm_domain *genpd)
+{
+ struct imx8m_blk_ctrl_domain *domain = to_imx8m_blk_ctrl_domain(genpd);
+ const struct imx8m_blk_ctrl_domain_data *data = domain->data;
+ struct imx8m_blk_ctrl *bc = domain->bc;
+ int ret;
+
+ /* make sure bus domain is awake */
+ ret = pm_runtime_get_sync(bc->bus_power_dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(bc->bus_power_dev);
+ dev_err(bc->dev, "failed to power up bus domain\n");
+ return ret;
+ }
+
+ /* put devices into reset */
+ regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
+ if (data->mipi_phy_rst_mask)
+ regmap_clear_bits(bc->regmap, BLK_MIPI_RESET_DIV, data->mipi_phy_rst_mask);
+
+ /* enable upstream and blk-ctrl clocks to allow reset to propagate */
+ ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
+ if (ret) {
+ dev_err(bc->dev, "failed to enable clocks\n");
+ goto bus_put;
+ }
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
+
+ /* power up upstream GPC domain */
+ ret = pm_runtime_get_sync(domain->power_dev);
+ if (ret < 0) {
+ dev_err(bc->dev, "failed to power up peripheral domain\n");
+ goto clk_disable;
+ }
+
+ /* wait for reset to propagate */
+ udelay(5);
+
+ /* release reset */
+ regmap_set_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
+ if (data->mipi_phy_rst_mask)
+ regmap_set_bits(bc->regmap, BLK_MIPI_RESET_DIV, data->mipi_phy_rst_mask);
+
+ ret = icc_bulk_set_bw(domain->num_paths, domain->paths);
+ if (ret)
+ dev_err(bc->dev, "failed to set icc bw\n");
+
+ /* disable upstream clocks */
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+
+ return 0;
+
+clk_disable:
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+bus_put:
+ pm_runtime_put(bc->bus_power_dev);
+
+ return ret;
+}
+
+static int imx8m_blk_ctrl_power_off(struct generic_pm_domain *genpd)
+{
+ struct imx8m_blk_ctrl_domain *domain = to_imx8m_blk_ctrl_domain(genpd);
+ const struct imx8m_blk_ctrl_domain_data *data = domain->data;
+ struct imx8m_blk_ctrl *bc = domain->bc;
+
+ /* put devices into reset and disable clocks */
+ if (data->mipi_phy_rst_mask)
+ regmap_clear_bits(bc->regmap, BLK_MIPI_RESET_DIV, data->mipi_phy_rst_mask);
+
+ regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
+ regmap_clear_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
+
+ /* power down upstream GPC domain */
+ pm_runtime_put(domain->power_dev);
+
+ /* allow bus domain to suspend */
+ pm_runtime_put(bc->bus_power_dev);
+
+ return 0;
+}
+
+static struct lock_class_key blk_ctrl_genpd_lock_class;
+
+static int imx8m_blk_ctrl_probe(struct platform_device *pdev)
+{
+ const struct imx8m_blk_ctrl_data *bc_data;
+ struct device *dev = &pdev->dev;
+ struct imx8m_blk_ctrl *bc;
+ void __iomem *base;
+ int i, ret;
+
+ struct regmap_config regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ };
+
+ bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
+ if (!bc)
+ return -ENOMEM;
+
+ bc->dev = dev;
+
+ bc_data = of_device_get_match_data(dev);
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap_config.max_register = bc_data->max_reg;
+ bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config);
+ if (IS_ERR(bc->regmap))
+ return dev_err_probe(dev, PTR_ERR(bc->regmap),
+ "failed to init regmap\n");
+
+ bc->domains = devm_kcalloc(dev, bc_data->num_domains,
+ sizeof(struct imx8m_blk_ctrl_domain),
+ GFP_KERNEL);
+ if (!bc->domains)
+ return -ENOMEM;
+
+ bc->onecell_data.num_domains = bc_data->num_domains;
+ bc->onecell_data.domains =
+ devm_kcalloc(dev, bc_data->num_domains,
+ sizeof(struct generic_pm_domain *), GFP_KERNEL);
+ if (!bc->onecell_data.domains)
+ return -ENOMEM;
+
+ bc->bus_power_dev = dev_pm_domain_attach_by_name(dev, "bus");
+ if (IS_ERR(bc->bus_power_dev)) {
+ if (PTR_ERR(bc->bus_power_dev) == -ENODEV)
+ return dev_err_probe(dev, -EPROBE_DEFER,
+ "failed to attach power domain \"bus\"\n");
+ else
+ return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev),
+ "failed to attach power domain \"bus\"\n");
+ }
+
+ for (i = 0; i < bc_data->num_domains; i++) {
+ const struct imx8m_blk_ctrl_domain_data *data = &bc_data->domains[i];
+ struct imx8m_blk_ctrl_domain *domain = &bc->domains[i];
+ int j;
+
+ domain->data = data;
+ domain->num_paths = data->num_paths;
+
+ for (j = 0; j < data->num_clks; j++)
+ domain->clks[j].id = data->clk_names[j];
+
+ for (j = 0; j < data->num_paths; j++) {
+ domain->paths[j].name = data->path_names[j];
+ /* Fake value for now, just let ICC could configure NoC mode/priority */
+ domain->paths[j].avg_bw = 1;
+ domain->paths[j].peak_bw = 1;
+ }
+
+ ret = devm_of_icc_bulk_get(dev, data->num_paths, domain->paths);
+ if (ret) {
+ if (ret != -EPROBE_DEFER) {
+ dev_warn_once(dev, "Could not get interconnect paths, NoC will stay unconfigured!\n");
+ domain->num_paths = 0;
+ } else {
+ dev_err_probe(dev, ret, "failed to get noc entries\n");
+ goto cleanup_pds;
+ }
+ }
+
+ ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to get clock\n");
+ goto cleanup_pds;
+ }
+
+ domain->power_dev =
+ dev_pm_domain_attach_by_name(dev, data->gpc_name);
+ if (IS_ERR(domain->power_dev)) {
+ dev_err_probe(dev, PTR_ERR(domain->power_dev),
+ "failed to attach power domain \"%s\"\n",
+ data->gpc_name);
+ ret = PTR_ERR(domain->power_dev);
+ goto cleanup_pds;
+ }
+
+ domain->genpd.name = data->name;
+ domain->genpd.power_on = imx8m_blk_ctrl_power_on;
+ domain->genpd.power_off = imx8m_blk_ctrl_power_off;
+ domain->bc = bc;
+
+ ret = pm_genpd_init(&domain->genpd, NULL, true);
+ if (ret) {
+ dev_err_probe(dev, ret,
+ "failed to init power domain \"%s\"\n",
+ data->gpc_name);
+ dev_pm_domain_detach(domain->power_dev, true);
+ goto cleanup_pds;
+ }
+
+ /*
+ * We use runtime PM to trigger power on/off of the upstream GPC
+ * domain, as a strict hierarchical parent/child power domain
+ * setup doesn't allow us to meet the sequencing requirements.
+ * This means we have nested locking of genpd locks, without the
+ * nesting being visible at the genpd level, so we need a
+ * separate lock class to make lockdep aware of the fact that
+ * this are separate domain locks that can be nested without a
+ * self-deadlock.
+ */
+ lockdep_set_class(&domain->genpd.mlock,
+ &blk_ctrl_genpd_lock_class);
+
+ bc->onecell_data.domains[i] = &domain->genpd;
+ }
+
+ ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to add power domain provider\n");
+ goto cleanup_pds;
+ }
+
+ bc->power_nb.notifier_call = bc_data->power_notifier_fn;
+ ret = dev_pm_genpd_add_notifier(bc->bus_power_dev, &bc->power_nb);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to add power notifier\n");
+ goto cleanup_provider;
+ }
+
+ dev_set_drvdata(dev, bc);
+
+ ret = devm_of_platform_populate(dev);
+ if (ret)
+ goto cleanup_provider;
+
+ return 0;
+
+cleanup_provider:
+ of_genpd_del_provider(dev->of_node);
+cleanup_pds:
+ for (i--; i >= 0; i--) {
+ pm_genpd_remove(&bc->domains[i].genpd);
+ dev_pm_domain_detach(bc->domains[i].power_dev, true);
+ }
+
+ dev_pm_domain_detach(bc->bus_power_dev, true);
+
+ return ret;
+}
+
+static int imx8m_blk_ctrl_remove(struct platform_device *pdev)
+{
+ struct imx8m_blk_ctrl *bc = dev_get_drvdata(&pdev->dev);
+ int i;
+
+ of_genpd_del_provider(pdev->dev.of_node);
+
+ for (i = 0; bc->onecell_data.num_domains; i++) {
+ struct imx8m_blk_ctrl_domain *domain = &bc->domains[i];
+
+ pm_genpd_remove(&domain->genpd);
+ dev_pm_domain_detach(domain->power_dev, true);
+ }
+
+ dev_pm_genpd_remove_notifier(bc->bus_power_dev);
+
+ dev_pm_domain_detach(bc->bus_power_dev, true);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int imx8m_blk_ctrl_suspend(struct device *dev)
+{
+ struct imx8m_blk_ctrl *bc = dev_get_drvdata(dev);
+ int ret, i;
+
+ /*
+ * This may look strange, but is done so the generic PM_SLEEP code
+ * can power down our domains and more importantly power them up again
+ * after resume, without tripping over our usage of runtime PM to
+ * control the upstream GPC domains. Things happen in the right order
+ * in the system suspend/resume paths due to the device parent/child
+ * hierarchy.
+ */
+ ret = pm_runtime_get_sync(bc->bus_power_dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(bc->bus_power_dev);
+ return ret;
+ }
+
+ for (i = 0; i < bc->onecell_data.num_domains; i++) {
+ struct imx8m_blk_ctrl_domain *domain = &bc->domains[i];
+
+ ret = pm_runtime_get_sync(domain->power_dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(domain->power_dev);
+ goto out_fail;
+ }
+ }
+
+ return 0;
+
+out_fail:
+ for (i--; i >= 0; i--)
+ pm_runtime_put(bc->domains[i].power_dev);
+
+ pm_runtime_put(bc->bus_power_dev);
+
+ return ret;
+}
+
+static int imx8m_blk_ctrl_resume(struct device *dev)
+{
+ struct imx8m_blk_ctrl *bc = dev_get_drvdata(dev);
+ int i;
+
+ for (i = 0; i < bc->onecell_data.num_domains; i++)
+ pm_runtime_put(bc->domains[i].power_dev);
+
+ pm_runtime_put(bc->bus_power_dev);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops imx8m_blk_ctrl_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(imx8m_blk_ctrl_suspend, imx8m_blk_ctrl_resume)
+};
+
+static int imx8mm_vpu_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
+ power_nb);
+
+ if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
+ return NOTIFY_OK;
+
+ /*
+ * The ADB in the VPUMIX domain has no separate reset and clock
+ * enable bits, but is ungated together with the VPU clocks. To
+ * allow the handshake with the GPC to progress we put the VPUs
+ * in reset and ungate the clocks.
+ */
+ regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, BIT(0) | BIT(1) | BIT(2));
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(0) | BIT(1) | BIT(2));
+
+ if (action == GENPD_NOTIFY_ON) {
+ /*
+ * On power up we have no software backchannel to the GPC to
+ * wait for the ADB handshake to happen, so we just delay for a
+ * bit. On power down the GPC driver waits for the handshake.
+ */
+ udelay(5);
+
+ /* set "fuse" bits to enable the VPUs */
+ regmap_set_bits(bc->regmap, 0x8, 0xffffffff);
+ regmap_set_bits(bc->regmap, 0xc, 0xffffffff);
+ regmap_set_bits(bc->regmap, 0x10, 0xffffffff);
+ regmap_set_bits(bc->regmap, 0x14, 0xffffffff);
+ }
+
+ return NOTIFY_OK;
+}
+
+static const struct imx8m_blk_ctrl_domain_data imx8mm_vpu_blk_ctl_domain_data[] = {
+ [IMX8MM_VPUBLK_PD_G1] = {
+ .name = "vpublk-g1",
+ .clk_names = (const char *[]){ "g1", },
+ .num_clks = 1,
+ .gpc_name = "g1",
+ .rst_mask = BIT(1),
+ .clk_mask = BIT(1),
+ },
+ [IMX8MM_VPUBLK_PD_G2] = {
+ .name = "vpublk-g2",
+ .clk_names = (const char *[]){ "g2", },
+ .num_clks = 1,
+ .gpc_name = "g2",
+ .rst_mask = BIT(0),
+ .clk_mask = BIT(0),
+ },
+ [IMX8MM_VPUBLK_PD_H1] = {
+ .name = "vpublk-h1",
+ .clk_names = (const char *[]){ "h1", },
+ .num_clks = 1,
+ .gpc_name = "h1",
+ .rst_mask = BIT(2),
+ .clk_mask = BIT(2),
+ },
+};
+
+static const struct imx8m_blk_ctrl_data imx8mm_vpu_blk_ctl_dev_data = {
+ .max_reg = 0x18,
+ .power_notifier_fn = imx8mm_vpu_power_notifier,
+ .domains = imx8mm_vpu_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mm_vpu_blk_ctl_domain_data),
+};
+
+static const struct imx8m_blk_ctrl_domain_data imx8mp_vpu_blk_ctl_domain_data[] = {
+ [IMX8MP_VPUBLK_PD_G1] = {
+ .name = "vpublk-g1",
+ .clk_names = (const char *[]){ "g1", },
+ .num_clks = 1,
+ .gpc_name = "g1",
+ .rst_mask = BIT(1),
+ .clk_mask = BIT(1),
+ .path_names = (const char *[]){"g1"},
+ .num_paths = 1,
+ },
+ [IMX8MP_VPUBLK_PD_G2] = {
+ .name = "vpublk-g2",
+ .clk_names = (const char *[]){ "g2", },
+ .num_clks = 1,
+ .gpc_name = "g2",
+ .rst_mask = BIT(0),
+ .clk_mask = BIT(0),
+ .path_names = (const char *[]){"g2"},
+ .num_paths = 1,
+ },
+ [IMX8MP_VPUBLK_PD_VC8000E] = {
+ .name = "vpublk-vc8000e",
+ .clk_names = (const char *[]){ "vc8000e", },
+ .num_clks = 1,
+ .gpc_name = "vc8000e",
+ .rst_mask = BIT(2),
+ .clk_mask = BIT(2),
+ .path_names = (const char *[]){"vc8000e"},
+ .num_paths = 1,
+ },
+};
+
+static const struct imx8m_blk_ctrl_data imx8mp_vpu_blk_ctl_dev_data = {
+ .max_reg = 0x18,
+ .power_notifier_fn = imx8mm_vpu_power_notifier,
+ .domains = imx8mp_vpu_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mp_vpu_blk_ctl_domain_data),
+};
+
+static int imx8mm_disp_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
+ power_nb);
+
+ if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
+ return NOTIFY_OK;
+
+ /* Enable bus clock and deassert bus reset */
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(12));
+ regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(6));
+
+ /*
+ * On power up we have no software backchannel to the GPC to
+ * wait for the ADB handshake to happen, so we just delay for a
+ * bit. On power down the GPC driver waits for the handshake.
+ */
+ if (action == GENPD_NOTIFY_ON)
+ udelay(5);
+
+
+ return NOTIFY_OK;
+}
+
+static const struct imx8m_blk_ctrl_domain_data imx8mm_disp_blk_ctl_domain_data[] = {
+ [IMX8MM_DISPBLK_PD_CSI_BRIDGE] = {
+ .name = "dispblk-csi-bridge",
+ .clk_names = (const char *[]){ "csi-bridge-axi", "csi-bridge-apb",
+ "csi-bridge-core", },
+ .num_clks = 3,
+ .gpc_name = "csi-bridge",
+ .rst_mask = BIT(0) | BIT(1) | BIT(2),
+ .clk_mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5),
+ },
+ [IMX8MM_DISPBLK_PD_LCDIF] = {
+ .name = "dispblk-lcdif",
+ .clk_names = (const char *[]){ "lcdif-axi", "lcdif-apb", "lcdif-pix", },
+ .num_clks = 3,
+ .gpc_name = "lcdif",
+ .clk_mask = BIT(6) | BIT(7),
+ },
+ [IMX8MM_DISPBLK_PD_MIPI_DSI] = {
+ .name = "dispblk-mipi-dsi",
+ .clk_names = (const char *[]){ "dsi-pclk", "dsi-ref", },
+ .num_clks = 2,
+ .gpc_name = "mipi-dsi",
+ .rst_mask = BIT(5),
+ .clk_mask = BIT(8) | BIT(9),
+ .mipi_phy_rst_mask = BIT(17),
+ },
+ [IMX8MM_DISPBLK_PD_MIPI_CSI] = {
+ .name = "dispblk-mipi-csi",
+ .clk_names = (const char *[]){ "csi-aclk", "csi-pclk" },
+ .num_clks = 2,
+ .gpc_name = "mipi-csi",
+ .rst_mask = BIT(3) | BIT(4),
+ .clk_mask = BIT(10) | BIT(11),
+ .mipi_phy_rst_mask = BIT(16),
+ },
+};
+
+static const struct imx8m_blk_ctrl_data imx8mm_disp_blk_ctl_dev_data = {
+ .max_reg = 0x2c,
+ .power_notifier_fn = imx8mm_disp_power_notifier,
+ .domains = imx8mm_disp_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mm_disp_blk_ctl_domain_data),
+};
+
+
+static int imx8mn_disp_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
+ power_nb);
+
+ if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
+ return NOTIFY_OK;
+
+ /* Enable bus clock and deassert bus reset */
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(8));
+ regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(8));
+
+ /*
+ * On power up we have no software backchannel to the GPC to
+ * wait for the ADB handshake to happen, so we just delay for a
+ * bit. On power down the GPC driver waits for the handshake.
+ */
+ if (action == GENPD_NOTIFY_ON)
+ udelay(5);
+
+
+ return NOTIFY_OK;
+}
+
+static const struct imx8m_blk_ctrl_domain_data imx8mn_disp_blk_ctl_domain_data[] = {
+ [IMX8MN_DISPBLK_PD_MIPI_DSI] = {
+ .name = "dispblk-mipi-dsi",
+ .clk_names = (const char *[]){ "dsi-pclk", "dsi-ref", },
+ .num_clks = 2,
+ .gpc_name = "mipi-dsi",
+ .rst_mask = BIT(0) | BIT(1),
+ .clk_mask = BIT(0) | BIT(1),
+ .mipi_phy_rst_mask = BIT(17),
+ },
+ [IMX8MN_DISPBLK_PD_MIPI_CSI] = {
+ .name = "dispblk-mipi-csi",
+ .clk_names = (const char *[]){ "csi-aclk", "csi-pclk" },
+ .num_clks = 2,
+ .gpc_name = "mipi-csi",
+ .rst_mask = BIT(2) | BIT(3),
+ .clk_mask = BIT(2) | BIT(3),
+ .mipi_phy_rst_mask = BIT(16),
+ },
+ [IMX8MN_DISPBLK_PD_LCDIF] = {
+ .name = "dispblk-lcdif",
+ .clk_names = (const char *[]){ "lcdif-axi", "lcdif-apb", "lcdif-pix", },
+ .num_clks = 3,
+ .gpc_name = "lcdif",
+ .rst_mask = BIT(4) | BIT(5),
+ .clk_mask = BIT(4) | BIT(5),
+ },
+ [IMX8MN_DISPBLK_PD_ISI] = {
+ .name = "dispblk-isi",
+ .clk_names = (const char *[]){ "disp_axi", "disp_apb", "disp_axi_root",
+ "disp_apb_root"},
+ .num_clks = 4,
+ .gpc_name = "isi",
+ .rst_mask = BIT(6) | BIT(7),
+ .clk_mask = BIT(6) | BIT(7),
+ },
+};
+
+static const struct imx8m_blk_ctrl_data imx8mn_disp_blk_ctl_dev_data = {
+ .max_reg = 0x84,
+ .power_notifier_fn = imx8mn_disp_power_notifier,
+ .domains = imx8mn_disp_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mn_disp_blk_ctl_domain_data),
+};
+
+#define LCDIF_ARCACHE_CTRL 0x4c
+#define LCDIF_1_RD_HURRY GENMASK(15, 13)
+#define LCDIF_0_RD_HURRY GENMASK(12, 10)
+
+static int imx8mp_media_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
+ power_nb);
+
+ if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
+ return NOTIFY_OK;
+
+ /* Enable bus clock and deassert bus reset */
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(8));
+ regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(8));
+
+ if (action == GENPD_NOTIFY_ON) {
+ /*
+ * On power up we have no software backchannel to the GPC to
+ * wait for the ADB handshake to happen, so we just delay for a
+ * bit. On power down the GPC driver waits for the handshake.
+ */
+ udelay(5);
+
+ /*
+ * Set panic read hurry level for both LCDIF interfaces to
+ * maximum priority to minimize chances of display FIFO
+ * underflow.
+ */
+ regmap_set_bits(bc->regmap, LCDIF_ARCACHE_CTRL,
+ FIELD_PREP(LCDIF_1_RD_HURRY, 7) |
+ FIELD_PREP(LCDIF_0_RD_HURRY, 7));
+ }
+
+ return NOTIFY_OK;
+}
+
+/*
+ * From i.MX 8M Plus Applications Processor Reference Manual, Rev. 1,
+ * section 13.2.2, 13.2.3
+ * isp-ahb and dwe are not in Figure 13-5. Media BLK_CTRL Clocks
+ */
+static const struct imx8m_blk_ctrl_domain_data imx8mp_media_blk_ctl_domain_data[] = {
+ [IMX8MP_MEDIABLK_PD_MIPI_DSI_1] = {
+ .name = "mediablk-mipi-dsi-1",
+ .clk_names = (const char *[]){ "apb", "phy", },
+ .num_clks = 2,
+ .gpc_name = "mipi-dsi1",
+ .rst_mask = BIT(0) | BIT(1),
+ .clk_mask = BIT(0) | BIT(1),
+ .mipi_phy_rst_mask = BIT(17),
+ },
+ [IMX8MP_MEDIABLK_PD_MIPI_CSI2_1] = {
+ .name = "mediablk-mipi-csi2-1",
+ .clk_names = (const char *[]){ "apb", "cam1" },
+ .num_clks = 2,
+ .gpc_name = "mipi-csi1",
+ .rst_mask = BIT(2) | BIT(3),
+ .clk_mask = BIT(2) | BIT(3),
+ .mipi_phy_rst_mask = BIT(16),
+ },
+ [IMX8MP_MEDIABLK_PD_LCDIF_1] = {
+ .name = "mediablk-lcdif-1",
+ .clk_names = (const char *[]){ "disp1", "apb", "axi", },
+ .num_clks = 3,
+ .gpc_name = "lcdif1",
+ .rst_mask = BIT(4) | BIT(5) | BIT(23),
+ .clk_mask = BIT(4) | BIT(5) | BIT(23),
+ .path_names = (const char *[]){"lcdif-rd", "lcdif-wr"},
+ .num_paths = 2,
+ },
+ [IMX8MP_MEDIABLK_PD_ISI] = {
+ .name = "mediablk-isi",
+ .clk_names = (const char *[]){ "axi", "apb" },
+ .num_clks = 2,
+ .gpc_name = "isi",
+ .rst_mask = BIT(6) | BIT(7),
+ .clk_mask = BIT(6) | BIT(7),
+ .path_names = (const char *[]){"isi0", "isi1", "isi2"},
+ .num_paths = 3,
+ },
+ [IMX8MP_MEDIABLK_PD_MIPI_CSI2_2] = {
+ .name = "mediablk-mipi-csi2-2",
+ .clk_names = (const char *[]){ "apb", "cam2" },
+ .num_clks = 2,
+ .gpc_name = "mipi-csi2",
+ .rst_mask = BIT(9) | BIT(10),
+ .clk_mask = BIT(9) | BIT(10),
+ .mipi_phy_rst_mask = BIT(30),
+ },
+ [IMX8MP_MEDIABLK_PD_LCDIF_2] = {
+ .name = "mediablk-lcdif-2",
+ .clk_names = (const char *[]){ "disp2", "apb", "axi", },
+ .num_clks = 3,
+ .gpc_name = "lcdif2",
+ .rst_mask = BIT(11) | BIT(12) | BIT(24),
+ .clk_mask = BIT(11) | BIT(12) | BIT(24),
+ .path_names = (const char *[]){"lcdif-rd", "lcdif-wr"},
+ .num_paths = 2,
+ },
+ [IMX8MP_MEDIABLK_PD_ISP] = {
+ .name = "mediablk-isp",
+ .clk_names = (const char *[]){ "isp", "axi", "apb" },
+ .num_clks = 3,
+ .gpc_name = "isp",
+ .rst_mask = BIT(16) | BIT(17) | BIT(18),
+ .clk_mask = BIT(16) | BIT(17) | BIT(18),
+ .path_names = (const char *[]){"isp0", "isp1"},
+ .num_paths = 2,
+ },
+ [IMX8MP_MEDIABLK_PD_DWE] = {
+ .name = "mediablk-dwe",
+ .clk_names = (const char *[]){ "axi", "apb" },
+ .num_clks = 2,
+ .gpc_name = "dwe",
+ .rst_mask = BIT(19) | BIT(20) | BIT(21),
+ .clk_mask = BIT(19) | BIT(20) | BIT(21),
+ .path_names = (const char *[]){"dwe"},
+ .num_paths = 1,
+ },
+ [IMX8MP_MEDIABLK_PD_MIPI_DSI_2] = {
+ .name = "mediablk-mipi-dsi-2",
+ .clk_names = (const char *[]){ "phy", },
+ .num_clks = 1,
+ .gpc_name = "mipi-dsi2",
+ .rst_mask = BIT(22),
+ .clk_mask = BIT(22),
+ .mipi_phy_rst_mask = BIT(29),
+ },
+};
+
+static const struct imx8m_blk_ctrl_data imx8mp_media_blk_ctl_dev_data = {
+ .max_reg = 0x138,
+ .power_notifier_fn = imx8mp_media_power_notifier,
+ .domains = imx8mp_media_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mp_media_blk_ctl_domain_data),
+};
+
+static int imx8mq_vpu_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
+ power_nb);
+
+ if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
+ return NOTIFY_OK;
+
+ /*
+ * The ADB in the VPUMIX domain has no separate reset and clock
+ * enable bits, but is ungated and reset together with the VPUs. The
+ * reset and clock enable inputs to the ADB is a logical OR of the
+ * VPU bits. In order to set the G2 fuse bits, the G2 clock must
+ * also be enabled.
+ */
+ regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(0) | BIT(1));
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(0) | BIT(1));
+
+ if (action == GENPD_NOTIFY_ON) {
+ /*
+ * On power up we have no software backchannel to the GPC to
+ * wait for the ADB handshake to happen, so we just delay for a
+ * bit. On power down the GPC driver waits for the handshake.
+ */
+ udelay(5);
+
+ /* set "fuse" bits to enable the VPUs */
+ regmap_set_bits(bc->regmap, 0x8, 0xffffffff);
+ regmap_set_bits(bc->regmap, 0xc, 0xffffffff);
+ regmap_set_bits(bc->regmap, 0x10, 0xffffffff);
+ }
+
+ return NOTIFY_OK;
+}
+
+static const struct imx8m_blk_ctrl_domain_data imx8mq_vpu_blk_ctl_domain_data[] = {
+ [IMX8MQ_VPUBLK_PD_G1] = {
+ .name = "vpublk-g1",
+ .clk_names = (const char *[]){ "g1", },
+ .num_clks = 1,
+ .gpc_name = "g1",
+ .rst_mask = BIT(1),
+ .clk_mask = BIT(1),
+ },
+ [IMX8MQ_VPUBLK_PD_G2] = {
+ .name = "vpublk-g2",
+ .clk_names = (const char *[]){ "g2", },
+ .num_clks = 1,
+ .gpc_name = "g2",
+ .rst_mask = BIT(0),
+ .clk_mask = BIT(0),
+ },
+};
+
+static const struct imx8m_blk_ctrl_data imx8mq_vpu_blk_ctl_dev_data = {
+ .max_reg = 0x14,
+ .power_notifier_fn = imx8mq_vpu_power_notifier,
+ .domains = imx8mq_vpu_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mq_vpu_blk_ctl_domain_data),
+};
+
+static const struct of_device_id imx8m_blk_ctrl_of_match[] = {
+ {
+ .compatible = "fsl,imx8mm-vpu-blk-ctrl",
+ .data = &imx8mm_vpu_blk_ctl_dev_data
+ }, {
+ .compatible = "fsl,imx8mm-disp-blk-ctrl",
+ .data = &imx8mm_disp_blk_ctl_dev_data
+ }, {
+ .compatible = "fsl,imx8mn-disp-blk-ctrl",
+ .data = &imx8mn_disp_blk_ctl_dev_data
+ }, {
+ .compatible = "fsl,imx8mp-media-blk-ctrl",
+ .data = &imx8mp_media_blk_ctl_dev_data
+ }, {
+ .compatible = "fsl,imx8mq-vpu-blk-ctrl",
+ .data = &imx8mq_vpu_blk_ctl_dev_data
+ }, {
+ .compatible = "fsl,imx8mp-vpu-blk-ctrl",
+ .data = &imx8mp_vpu_blk_ctl_dev_data
+ }, {
+ /* Sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, imx8m_blk_ctrl_of_match);
+
+static struct platform_driver imx8m_blk_ctrl_driver = {
+ .probe = imx8m_blk_ctrl_probe,
+ .remove = imx8m_blk_ctrl_remove,
+ .driver = {
+ .name = "imx8m-blk-ctrl",
+ .pm = &imx8m_blk_ctrl_pm_ops,
+ .of_match_table = imx8m_blk_ctrl_of_match,
+ },
+};
+module_platform_driver(imx8m_blk_ctrl_driver);
+MODULE_LICENSE("GPL");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2022 Pengutronix, Lucas Stach <kernel@pengutronix.de>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/device.h>
+#include <linux/interconnect.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/power/imx8mp-power.h>
+
+#define GPR_REG0 0x0
+#define PCIE_CLOCK_MODULE_EN BIT(0)
+#define USB_CLOCK_MODULE_EN BIT(1)
+#define PCIE_PHY_APB_RST BIT(4)
+#define PCIE_PHY_INIT_RST BIT(5)
+#define GPR_REG1 0x4
+#define PLL_LOCK BIT(13)
+#define GPR_REG2 0x8
+#define P_PLL_MASK GENMASK(5, 0)
+#define M_PLL_MASK GENMASK(15, 6)
+#define S_PLL_MASK GENMASK(18, 16)
+#define GPR_REG3 0xc
+#define PLL_CKE BIT(17)
+#define PLL_RST BIT(31)
+
+struct imx8mp_blk_ctrl_domain;
+
+struct imx8mp_blk_ctrl {
+ struct device *dev;
+ struct notifier_block power_nb;
+ struct device *bus_power_dev;
+ struct regmap *regmap;
+ struct imx8mp_blk_ctrl_domain *domains;
+ struct genpd_onecell_data onecell_data;
+ void (*power_off) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
+ void (*power_on) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
+};
+
+struct imx8mp_blk_ctrl_domain_data {
+ const char *name;
+ const char * const *clk_names;
+ int num_clks;
+ const char * const *path_names;
+ int num_paths;
+ const char *gpc_name;
+};
+
+#define DOMAIN_MAX_CLKS 2
+#define DOMAIN_MAX_PATHS 3
+
+struct imx8mp_blk_ctrl_domain {
+ struct generic_pm_domain genpd;
+ const struct imx8mp_blk_ctrl_domain_data *data;
+ struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
+ struct icc_bulk_data paths[DOMAIN_MAX_PATHS];
+ struct device *power_dev;
+ struct imx8mp_blk_ctrl *bc;
+ int num_paths;
+ int id;
+};
+
+struct imx8mp_blk_ctrl_data {
+ int max_reg;
+ int (*probe) (struct imx8mp_blk_ctrl *bc);
+ notifier_fn_t power_notifier_fn;
+ void (*power_off) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
+ void (*power_on) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
+ const struct imx8mp_blk_ctrl_domain_data *domains;
+ int num_domains;
+};
+
+static inline struct imx8mp_blk_ctrl_domain *
+to_imx8mp_blk_ctrl_domain(struct generic_pm_domain *genpd)
+{
+ return container_of(genpd, struct imx8mp_blk_ctrl_domain, genpd);
+}
+
+struct clk_hsio_pll {
+ struct clk_hw hw;
+ struct regmap *regmap;
+};
+
+static inline struct clk_hsio_pll *to_clk_hsio_pll(struct clk_hw *hw)
+{
+ return container_of(hw, struct clk_hsio_pll, hw);
+}
+
+static int clk_hsio_pll_prepare(struct clk_hw *hw)
+{
+ struct clk_hsio_pll *clk = to_clk_hsio_pll(hw);
+ u32 val;
+
+ /* set the PLL configuration */
+ regmap_update_bits(clk->regmap, GPR_REG2,
+ P_PLL_MASK | M_PLL_MASK | S_PLL_MASK,
+ FIELD_PREP(P_PLL_MASK, 12) |
+ FIELD_PREP(M_PLL_MASK, 800) |
+ FIELD_PREP(S_PLL_MASK, 4));
+
+ /* de-assert PLL reset */
+ regmap_update_bits(clk->regmap, GPR_REG3, PLL_RST, PLL_RST);
+
+ /* enable PLL */
+ regmap_update_bits(clk->regmap, GPR_REG3, PLL_CKE, PLL_CKE);
+
+ return regmap_read_poll_timeout(clk->regmap, GPR_REG1, val,
+ val & PLL_LOCK, 10, 100);
+}
+
+static void clk_hsio_pll_unprepare(struct clk_hw *hw)
+{
+ struct clk_hsio_pll *clk = to_clk_hsio_pll(hw);
+
+ regmap_update_bits(clk->regmap, GPR_REG3, PLL_RST | PLL_CKE, 0);
+}
+
+static int clk_hsio_pll_is_prepared(struct clk_hw *hw)
+{
+ struct clk_hsio_pll *clk = to_clk_hsio_pll(hw);
+
+ return regmap_test_bits(clk->regmap, GPR_REG1, PLL_LOCK);
+}
+
+static unsigned long clk_hsio_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ return 100000000;
+}
+
+static const struct clk_ops clk_hsio_pll_ops = {
+ .prepare = clk_hsio_pll_prepare,
+ .unprepare = clk_hsio_pll_unprepare,
+ .is_prepared = clk_hsio_pll_is_prepared,
+ .recalc_rate = clk_hsio_pll_recalc_rate,
+};
+
+static int imx8mp_hsio_blk_ctrl_probe(struct imx8mp_blk_ctrl *bc)
+{
+ struct clk_hsio_pll *clk_hsio_pll;
+ struct clk_hw *hw;
+ struct clk_init_data init = {};
+ int ret;
+
+ clk_hsio_pll = devm_kzalloc(bc->dev, sizeof(*clk_hsio_pll), GFP_KERNEL);
+ if (!clk_hsio_pll)
+ return -ENOMEM;
+
+ init.name = "hsio_pll";
+ init.ops = &clk_hsio_pll_ops;
+ init.parent_names = (const char *[]){"osc_24m"};
+ init.num_parents = 1;
+
+ clk_hsio_pll->regmap = bc->regmap;
+ clk_hsio_pll->hw.init = &init;
+
+ hw = &clk_hsio_pll->hw;
+ ret = devm_clk_hw_register(bc->dev, hw);
+ if (ret)
+ return ret;
+
+ return devm_of_clk_add_hw_provider(bc->dev, of_clk_hw_simple_get, hw);
+}
+
+static void imx8mp_hsio_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc,
+ struct imx8mp_blk_ctrl_domain *domain)
+{
+ switch (domain->id) {
+ case IMX8MP_HSIOBLK_PD_USB:
+ regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
+ break;
+ case IMX8MP_HSIOBLK_PD_PCIE:
+ regmap_set_bits(bc->regmap, GPR_REG0, PCIE_CLOCK_MODULE_EN);
+ break;
+ case IMX8MP_HSIOBLK_PD_PCIE_PHY:
+ regmap_set_bits(bc->regmap, GPR_REG0,
+ PCIE_PHY_APB_RST | PCIE_PHY_INIT_RST);
+ break;
+ default:
+ break;
+ }
+}
+
+static void imx8mp_hsio_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc,
+ struct imx8mp_blk_ctrl_domain *domain)
+{
+ switch (domain->id) {
+ case IMX8MP_HSIOBLK_PD_USB:
+ regmap_clear_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
+ break;
+ case IMX8MP_HSIOBLK_PD_PCIE:
+ regmap_clear_bits(bc->regmap, GPR_REG0, PCIE_CLOCK_MODULE_EN);
+ break;
+ case IMX8MP_HSIOBLK_PD_PCIE_PHY:
+ regmap_clear_bits(bc->regmap, GPR_REG0,
+ PCIE_PHY_APB_RST | PCIE_PHY_INIT_RST);
+ break;
+ default:
+ break;
+ }
+}
+
+static int imx8mp_hsio_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8mp_blk_ctrl *bc = container_of(nb, struct imx8mp_blk_ctrl,
+ power_nb);
+ struct clk_bulk_data *usb_clk = bc->domains[IMX8MP_HSIOBLK_PD_USB].clks;
+ int num_clks = bc->domains[IMX8MP_HSIOBLK_PD_USB].data->num_clks;
+ int ret;
+
+ switch (action) {
+ case GENPD_NOTIFY_ON:
+ /*
+ * enable USB clock for a moment for the power-on ADB handshake
+ * to proceed
+ */
+ ret = clk_bulk_prepare_enable(num_clks, usb_clk);
+ if (ret)
+ return NOTIFY_BAD;
+ regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
+
+ udelay(5);
+
+ regmap_clear_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
+ clk_bulk_disable_unprepare(num_clks, usb_clk);
+ break;
+ case GENPD_NOTIFY_PRE_OFF:
+ /* enable USB clock for the power-down ADB handshake to work */
+ ret = clk_bulk_prepare_enable(num_clks, usb_clk);
+ if (ret)
+ return NOTIFY_BAD;
+
+ regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
+ break;
+ case GENPD_NOTIFY_OFF:
+ clk_bulk_disable_unprepare(num_clks, usb_clk);
+ break;
+ default:
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
+static const struct imx8mp_blk_ctrl_domain_data imx8mp_hsio_domain_data[] = {
+ [IMX8MP_HSIOBLK_PD_USB] = {
+ .name = "hsioblk-usb",
+ .clk_names = (const char *[]){ "usb" },
+ .num_clks = 1,
+ .gpc_name = "usb",
+ .path_names = (const char *[]){"usb1", "usb2"},
+ .num_paths = 2,
+ },
+ [IMX8MP_HSIOBLK_PD_USB_PHY1] = {
+ .name = "hsioblk-usb-phy1",
+ .gpc_name = "usb-phy1",
+ },
+ [IMX8MP_HSIOBLK_PD_USB_PHY2] = {
+ .name = "hsioblk-usb-phy2",
+ .gpc_name = "usb-phy2",
+ },
+ [IMX8MP_HSIOBLK_PD_PCIE] = {
+ .name = "hsioblk-pcie",
+ .clk_names = (const char *[]){ "pcie" },
+ .num_clks = 1,
+ .gpc_name = "pcie",
+ .path_names = (const char *[]){"noc-pcie", "pcie"},
+ .num_paths = 2,
+ },
+ [IMX8MP_HSIOBLK_PD_PCIE_PHY] = {
+ .name = "hsioblk-pcie-phy",
+ .gpc_name = "pcie-phy",
+ },
+};
+
+static const struct imx8mp_blk_ctrl_data imx8mp_hsio_blk_ctl_dev_data = {
+ .max_reg = 0x24,
+ .probe = imx8mp_hsio_blk_ctrl_probe,
+ .power_on = imx8mp_hsio_blk_ctrl_power_on,
+ .power_off = imx8mp_hsio_blk_ctrl_power_off,
+ .power_notifier_fn = imx8mp_hsio_power_notifier,
+ .domains = imx8mp_hsio_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mp_hsio_domain_data),
+};
+
+#define HDMI_RTX_RESET_CTL0 0x20
+#define HDMI_RTX_CLK_CTL0 0x40
+#define HDMI_RTX_CLK_CTL1 0x50
+#define HDMI_RTX_CLK_CTL2 0x60
+#define HDMI_RTX_CLK_CTL3 0x70
+#define HDMI_RTX_CLK_CTL4 0x80
+#define HDMI_TX_CONTROL0 0x200
+#define HDMI_LCDIF_NOC_HURRY_MASK GENMASK(14, 12)
+
+static void imx8mp_hdmi_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc,
+ struct imx8mp_blk_ctrl_domain *domain)
+{
+ switch (domain->id) {
+ case IMX8MP_HDMIBLK_PD_IRQSTEER:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(9));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(16));
+ break;
+ case IMX8MP_HDMIBLK_PD_LCDIF:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
+ BIT(16) | BIT(17) | BIT(18) |
+ BIT(19) | BIT(20));
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(11));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
+ BIT(4) | BIT(5) | BIT(6));
+ regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0,
+ FIELD_PREP(HDMI_LCDIF_NOC_HURRY_MASK, 7));
+ break;
+ case IMX8MP_HDMIBLK_PD_PAI:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(17));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(18));
+ break;
+ case IMX8MP_HDMIBLK_PD_PVI:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(28));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(22));
+ break;
+ case IMX8MP_HDMIBLK_PD_TRNG:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(27) | BIT(30));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(20));
+ break;
+ case IMX8MP_HDMIBLK_PD_HDMI_TX:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
+ BIT(2) | BIT(4) | BIT(5));
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1,
+ BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
+ BIT(18) | BIT(19) | BIT(20) | BIT(21));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
+ BIT(7) | BIT(10) | BIT(11));
+ regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(1));
+ break;
+ case IMX8MP_HDMIBLK_PD_HDMI_TX_PHY:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(7));
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12));
+ regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3));
+ break;
+ case IMX8MP_HDMIBLK_PD_HDCP:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(11));
+ break;
+ case IMX8MP_HDMIBLK_PD_HRV:
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(3) | BIT(4) | BIT(5));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(15));
+ break;
+ default:
+ break;
+ }
+}
+
+static void imx8mp_hdmi_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc,
+ struct imx8mp_blk_ctrl_domain *domain)
+{
+ switch (domain->id) {
+ case IMX8MP_HDMIBLK_PD_IRQSTEER:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(9));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(16));
+ break;
+ case IMX8MP_HDMIBLK_PD_LCDIF:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
+ BIT(4) | BIT(5) | BIT(6));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(11));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
+ BIT(16) | BIT(17) | BIT(18) |
+ BIT(19) | BIT(20));
+ break;
+ case IMX8MP_HDMIBLK_PD_PAI:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(18));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(17));
+ break;
+ case IMX8MP_HDMIBLK_PD_PVI:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(22));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(28));
+ break;
+ case IMX8MP_HDMIBLK_PD_TRNG:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(20));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(27) | BIT(30));
+ break;
+ case IMX8MP_HDMIBLK_PD_HDMI_TX:
+ regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(1));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
+ BIT(7) | BIT(10) | BIT(11));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1,
+ BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
+ BIT(18) | BIT(19) | BIT(20) | BIT(21));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
+ BIT(2) | BIT(4) | BIT(5));
+ break;
+ case IMX8MP_HDMIBLK_PD_HDMI_TX_PHY:
+ regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(7));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24));
+ break;
+ case IMX8MP_HDMIBLK_PD_HDCP:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(11));
+ break;
+ case IMX8MP_HDMIBLK_PD_HRV:
+ regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(15));
+ regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(3) | BIT(4) | BIT(5));
+ break;
+ default:
+ break;
+ }
+}
+
+static int imx8mp_hdmi_power_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct imx8mp_blk_ctrl *bc = container_of(nb, struct imx8mp_blk_ctrl,
+ power_nb);
+
+ if (action != GENPD_NOTIFY_ON)
+ return NOTIFY_OK;
+
+ /*
+ * Contrary to other blk-ctrls the reset and clock don't clear when the
+ * power domain is powered down. To ensure the proper reset pulsing,
+ * first clear them all to asserted state, then enable the bus clocks
+ * and then release the ADB reset.
+ */
+ regmap_write(bc->regmap, HDMI_RTX_RESET_CTL0, 0x0);
+ regmap_write(bc->regmap, HDMI_RTX_CLK_CTL0, 0x0);
+ regmap_write(bc->regmap, HDMI_RTX_CLK_CTL1, 0x0);
+ regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
+ BIT(0) | BIT(1) | BIT(10));
+ regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(0));
+
+ /*
+ * On power up we have no software backchannel to the GPC to
+ * wait for the ADB handshake to happen, so we just delay for a
+ * bit. On power down the GPC driver waits for the handshake.
+ */
+ udelay(5);
+
+ return NOTIFY_OK;
+}
+
+static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = {
+ [IMX8MP_HDMIBLK_PD_IRQSTEER] = {
+ .name = "hdmiblk-irqsteer",
+ .clk_names = (const char *[]){ "apb" },
+ .num_clks = 1,
+ .gpc_name = "irqsteer",
+ },
+ [IMX8MP_HDMIBLK_PD_LCDIF] = {
+ .name = "hdmiblk-lcdif",
+ .clk_names = (const char *[]){ "axi", "apb" },
+ .num_clks = 2,
+ .gpc_name = "lcdif",
+ .path_names = (const char *[]){"lcdif-hdmi"},
+ .num_paths = 1,
+ },
+ [IMX8MP_HDMIBLK_PD_PAI] = {
+ .name = "hdmiblk-pai",
+ .clk_names = (const char *[]){ "apb" },
+ .num_clks = 1,
+ .gpc_name = "pai",
+ },
+ [IMX8MP_HDMIBLK_PD_PVI] = {
+ .name = "hdmiblk-pvi",
+ .clk_names = (const char *[]){ "apb" },
+ .num_clks = 1,
+ .gpc_name = "pvi",
+ },
+ [IMX8MP_HDMIBLK_PD_TRNG] = {
+ .name = "hdmiblk-trng",
+ .clk_names = (const char *[]){ "apb" },
+ .num_clks = 1,
+ .gpc_name = "trng",
+ },
+ [IMX8MP_HDMIBLK_PD_HDMI_TX] = {
+ .name = "hdmiblk-hdmi-tx",
+ .clk_names = (const char *[]){ "apb", "ref_266m" },
+ .num_clks = 2,
+ .gpc_name = "hdmi-tx",
+ },
+ [IMX8MP_HDMIBLK_PD_HDMI_TX_PHY] = {
+ .name = "hdmiblk-hdmi-tx-phy",
+ .clk_names = (const char *[]){ "apb", "ref_24m" },
+ .num_clks = 2,
+ .gpc_name = "hdmi-tx-phy",
+ },
+ [IMX8MP_HDMIBLK_PD_HRV] = {
+ .name = "hdmiblk-hrv",
+ .clk_names = (const char *[]){ "axi", "apb" },
+ .num_clks = 2,
+ .gpc_name = "hrv",
+ .path_names = (const char *[]){"hrv"},
+ .num_paths = 1,
+ },
+ [IMX8MP_HDMIBLK_PD_HDCP] = {
+ .name = "hdmiblk-hdcp",
+ .clk_names = (const char *[]){ "axi", "apb" },
+ .num_clks = 2,
+ .gpc_name = "hdcp",
+ .path_names = (const char *[]){"hdcp"},
+ .num_paths = 1,
+ },
+};
+
+static const struct imx8mp_blk_ctrl_data imx8mp_hdmi_blk_ctl_dev_data = {
+ .max_reg = 0x23c,
+ .power_on = imx8mp_hdmi_blk_ctrl_power_on,
+ .power_off = imx8mp_hdmi_blk_ctrl_power_off,
+ .power_notifier_fn = imx8mp_hdmi_power_notifier,
+ .domains = imx8mp_hdmi_domain_data,
+ .num_domains = ARRAY_SIZE(imx8mp_hdmi_domain_data),
+};
+
+static int imx8mp_blk_ctrl_power_on(struct generic_pm_domain *genpd)
+{
+ struct imx8mp_blk_ctrl_domain *domain = to_imx8mp_blk_ctrl_domain(genpd);
+ const struct imx8mp_blk_ctrl_domain_data *data = domain->data;
+ struct imx8mp_blk_ctrl *bc = domain->bc;
+ int ret;
+
+ /* make sure bus domain is awake */
+ ret = pm_runtime_resume_and_get(bc->bus_power_dev);
+ if (ret < 0) {
+ dev_err(bc->dev, "failed to power up bus domain\n");
+ return ret;
+ }
+
+ /* enable upstream clocks */
+ ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
+ if (ret) {
+ dev_err(bc->dev, "failed to enable clocks\n");
+ goto bus_put;
+ }
+
+ /* domain specific blk-ctrl manipulation */
+ bc->power_on(bc, domain);
+
+ /* power up upstream GPC domain */
+ ret = pm_runtime_resume_and_get(domain->power_dev);
+ if (ret < 0) {
+ dev_err(bc->dev, "failed to power up peripheral domain\n");
+ goto clk_disable;
+ }
+
+ ret = icc_bulk_set_bw(domain->num_paths, domain->paths);
+ if (ret)
+ dev_err(bc->dev, "failed to set icc bw\n");
+
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+
+ return 0;
+
+clk_disable:
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+bus_put:
+ pm_runtime_put(bc->bus_power_dev);
+
+ return ret;
+}
+
+static int imx8mp_blk_ctrl_power_off(struct generic_pm_domain *genpd)
+{
+ struct imx8mp_blk_ctrl_domain *domain = to_imx8mp_blk_ctrl_domain(genpd);
+ const struct imx8mp_blk_ctrl_domain_data *data = domain->data;
+ struct imx8mp_blk_ctrl *bc = domain->bc;
+ int ret;
+
+ ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
+ if (ret) {
+ dev_err(bc->dev, "failed to enable clocks\n");
+ return ret;
+ }
+
+ /* domain specific blk-ctrl manipulation */
+ bc->power_off(bc, domain);
+
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+
+ /* power down upstream GPC domain */
+ pm_runtime_put(domain->power_dev);
+
+ /* allow bus domain to suspend */
+ pm_runtime_put(bc->bus_power_dev);
+
+ return 0;
+}
+
+static struct lock_class_key blk_ctrl_genpd_lock_class;
+
+static int imx8mp_blk_ctrl_probe(struct platform_device *pdev)
+{
+ const struct imx8mp_blk_ctrl_data *bc_data;
+ struct device *dev = &pdev->dev;
+ struct imx8mp_blk_ctrl *bc;
+ void __iomem *base;
+ int num_domains, i, ret;
+
+ struct regmap_config regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ };
+
+ bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
+ if (!bc)
+ return -ENOMEM;
+
+ bc->dev = dev;
+
+ bc_data = of_device_get_match_data(dev);
+ num_domains = bc_data->num_domains;
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap_config.max_register = bc_data->max_reg;
+ bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config);
+ if (IS_ERR(bc->regmap))
+ return dev_err_probe(dev, PTR_ERR(bc->regmap),
+ "failed to init regmap\n");
+
+ bc->domains = devm_kcalloc(dev, num_domains,
+ sizeof(struct imx8mp_blk_ctrl_domain),
+ GFP_KERNEL);
+ if (!bc->domains)
+ return -ENOMEM;
+
+ bc->onecell_data.num_domains = num_domains;
+ bc->onecell_data.domains =
+ devm_kcalloc(dev, num_domains,
+ sizeof(struct generic_pm_domain *), GFP_KERNEL);
+ if (!bc->onecell_data.domains)
+ return -ENOMEM;
+
+ bc->bus_power_dev = dev_pm_domain_attach_by_name(dev, "bus");
+ if (IS_ERR(bc->bus_power_dev))
+ return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev),
+ "failed to attach bus power domain\n");
+
+ bc->power_off = bc_data->power_off;
+ bc->power_on = bc_data->power_on;
+
+ for (i = 0; i < num_domains; i++) {
+ const struct imx8mp_blk_ctrl_domain_data *data = &bc_data->domains[i];
+ struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
+ int j;
+
+ domain->data = data;
+ domain->num_paths = data->num_paths;
+
+ for (j = 0; j < data->num_clks; j++)
+ domain->clks[j].id = data->clk_names[j];
+
+ for (j = 0; j < data->num_paths; j++) {
+ domain->paths[j].name = data->path_names[j];
+ /* Fake value for now, just let ICC could configure NoC mode/priority */
+ domain->paths[j].avg_bw = 1;
+ domain->paths[j].peak_bw = 1;
+ }
+
+ ret = devm_of_icc_bulk_get(dev, data->num_paths, domain->paths);
+ if (ret) {
+ if (ret != -EPROBE_DEFER) {
+ dev_warn_once(dev, "Could not get interconnect paths, NoC will stay unconfigured!\n");
+ domain->num_paths = 0;
+ } else {
+ dev_err_probe(dev, ret, "failed to get noc entries\n");
+ goto cleanup_pds;
+ }
+ }
+
+ ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to get clock\n");
+ goto cleanup_pds;
+ }
+
+ domain->power_dev =
+ dev_pm_domain_attach_by_name(dev, data->gpc_name);
+ if (IS_ERR(domain->power_dev)) {
+ dev_err_probe(dev, PTR_ERR(domain->power_dev),
+ "failed to attach power domain %s\n",
+ data->gpc_name);
+ ret = PTR_ERR(domain->power_dev);
+ goto cleanup_pds;
+ }
+
+ domain->genpd.name = data->name;
+ domain->genpd.power_on = imx8mp_blk_ctrl_power_on;
+ domain->genpd.power_off = imx8mp_blk_ctrl_power_off;
+ domain->bc = bc;
+ domain->id = i;
+
+ ret = pm_genpd_init(&domain->genpd, NULL, true);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to init power domain\n");
+ dev_pm_domain_detach(domain->power_dev, true);
+ goto cleanup_pds;
+ }
+
+ /*
+ * We use runtime PM to trigger power on/off of the upstream GPC
+ * domain, as a strict hierarchical parent/child power domain
+ * setup doesn't allow us to meet the sequencing requirements.
+ * This means we have nested locking of genpd locks, without the
+ * nesting being visible at the genpd level, so we need a
+ * separate lock class to make lockdep aware of the fact that
+ * this are separate domain locks that can be nested without a
+ * self-deadlock.
+ */
+ lockdep_set_class(&domain->genpd.mlock,
+ &blk_ctrl_genpd_lock_class);
+
+ bc->onecell_data.domains[i] = &domain->genpd;
+ }
+
+ ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to add power domain provider\n");
+ goto cleanup_pds;
+ }
+
+ bc->power_nb.notifier_call = bc_data->power_notifier_fn;
+ ret = dev_pm_genpd_add_notifier(bc->bus_power_dev, &bc->power_nb);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to add power notifier\n");
+ goto cleanup_provider;
+ }
+
+ if (bc_data->probe) {
+ ret = bc_data->probe(bc);
+ if (ret)
+ goto cleanup_provider;
+ }
+
+ dev_set_drvdata(dev, bc);
+
+ return 0;
+
+cleanup_provider:
+ of_genpd_del_provider(dev->of_node);
+cleanup_pds:
+ for (i--; i >= 0; i--) {
+ pm_genpd_remove(&bc->domains[i].genpd);
+ dev_pm_domain_detach(bc->domains[i].power_dev, true);
+ }
+
+ dev_pm_domain_detach(bc->bus_power_dev, true);
+
+ return ret;
+}
+
+static int imx8mp_blk_ctrl_remove(struct platform_device *pdev)
+{
+ struct imx8mp_blk_ctrl *bc = dev_get_drvdata(&pdev->dev);
+ int i;
+
+ of_genpd_del_provider(pdev->dev.of_node);
+
+ for (i = 0; bc->onecell_data.num_domains; i++) {
+ struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
+
+ pm_genpd_remove(&domain->genpd);
+ dev_pm_domain_detach(domain->power_dev, true);
+ }
+
+ dev_pm_genpd_remove_notifier(bc->bus_power_dev);
+
+ dev_pm_domain_detach(bc->bus_power_dev, true);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int imx8mp_blk_ctrl_suspend(struct device *dev)
+{
+ struct imx8mp_blk_ctrl *bc = dev_get_drvdata(dev);
+ int ret, i;
+
+ /*
+ * This may look strange, but is done so the generic PM_SLEEP code
+ * can power down our domains and more importantly power them up again
+ * after resume, without tripping over our usage of runtime PM to
+ * control the upstream GPC domains. Things happen in the right order
+ * in the system suspend/resume paths due to the device parent/child
+ * hierarchy.
+ */
+ ret = pm_runtime_get_sync(bc->bus_power_dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(bc->bus_power_dev);
+ return ret;
+ }
+
+ for (i = 0; i < bc->onecell_data.num_domains; i++) {
+ struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
+
+ ret = pm_runtime_get_sync(domain->power_dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(domain->power_dev);
+ goto out_fail;
+ }
+ }
+
+ return 0;
+
+out_fail:
+ for (i--; i >= 0; i--)
+ pm_runtime_put(bc->domains[i].power_dev);
+
+ pm_runtime_put(bc->bus_power_dev);
+
+ return ret;
+}
+
+static int imx8mp_blk_ctrl_resume(struct device *dev)
+{
+ struct imx8mp_blk_ctrl *bc = dev_get_drvdata(dev);
+ int i;
+
+ for (i = 0; i < bc->onecell_data.num_domains; i++)
+ pm_runtime_put(bc->domains[i].power_dev);
+
+ pm_runtime_put(bc->bus_power_dev);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops imx8mp_blk_ctrl_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(imx8mp_blk_ctrl_suspend,
+ imx8mp_blk_ctrl_resume)
+};
+
+static const struct of_device_id imx8mp_blk_ctrl_of_match[] = {
+ {
+ .compatible = "fsl,imx8mp-hsio-blk-ctrl",
+ .data = &imx8mp_hsio_blk_ctl_dev_data,
+ }, {
+ .compatible = "fsl,imx8mp-hdmi-blk-ctrl",
+ .data = &imx8mp_hdmi_blk_ctl_dev_data,
+ }, {
+ /* Sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, imx8mp_blk_ctrl_of_match);
+
+static struct platform_driver imx8mp_blk_ctrl_driver = {
+ .probe = imx8mp_blk_ctrl_probe,
+ .remove = imx8mp_blk_ctrl_remove,
+ .driver = {
+ .name = "imx8mp-blk-ctrl",
+ .pm = &imx8mp_blk_ctrl_pm_ops,
+ .of_match_table = imx8mp_blk_ctrl_of_match,
+ },
+};
+module_platform_driver(imx8mp_blk_ctrl_driver);
+MODULE_LICENSE("GPL");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2022 NXP, Peng Fan <peng.fan@nxp.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/sizes.h>
+
+#include <dt-bindings/power/fsl,imx93-power.h>
+
+#define BLK_SFT_RSTN 0x0
+#define BLK_CLK_EN 0x4
+#define BLK_MAX_CLKS 4
+
+#define DOMAIN_MAX_CLKS 4
+
+#define LCDIF_QOS_REG 0xC
+#define LCDIF_DEFAULT_QOS_OFF 12
+#define LCDIF_CFG_QOS_OFF 8
+
+#define PXP_QOS_REG 0x10
+#define PXP_R_DEFAULT_QOS_OFF 28
+#define PXP_R_CFG_QOS_OFF 24
+#define PXP_W_DEFAULT_QOS_OFF 20
+#define PXP_W_CFG_QOS_OFF 16
+
+#define ISI_CACHE_REG 0x14
+
+#define ISI_QOS_REG 0x1C
+#define ISI_V_DEFAULT_QOS_OFF 28
+#define ISI_V_CFG_QOS_OFF 24
+#define ISI_U_DEFAULT_QOS_OFF 20
+#define ISI_U_CFG_QOS_OFF 16
+#define ISI_Y_R_DEFAULT_QOS_OFF 12
+#define ISI_Y_R_CFG_QOS_OFF 8
+#define ISI_Y_W_DEFAULT_QOS_OFF 4
+#define ISI_Y_W_CFG_QOS_OFF 0
+
+#define PRIO_MASK 0xF
+
+#define PRIO(X) (X)
+
+struct imx93_blk_ctrl_domain;
+
+struct imx93_blk_ctrl {
+ struct device *dev;
+ struct regmap *regmap;
+ int num_clks;
+ struct clk_bulk_data clks[BLK_MAX_CLKS];
+ struct imx93_blk_ctrl_domain *domains;
+ struct genpd_onecell_data onecell_data;
+};
+
+#define DOMAIN_MAX_QOS 4
+
+struct imx93_blk_ctrl_qos {
+ u32 reg;
+ u32 cfg_off;
+ u32 default_prio;
+ u32 cfg_prio;
+};
+
+struct imx93_blk_ctrl_domain_data {
+ const char *name;
+ const char * const *clk_names;
+ int num_clks;
+ u32 rst_mask;
+ u32 clk_mask;
+ int num_qos;
+ struct imx93_blk_ctrl_qos qos[DOMAIN_MAX_QOS];
+};
+
+struct imx93_blk_ctrl_domain {
+ struct generic_pm_domain genpd;
+ const struct imx93_blk_ctrl_domain_data *data;
+ struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
+ struct imx93_blk_ctrl *bc;
+};
+
+struct imx93_blk_ctrl_data {
+ const struct imx93_blk_ctrl_domain_data *domains;
+ int num_domains;
+ const char * const *clk_names;
+ int num_clks;
+ const struct regmap_access_table *reg_access_table;
+};
+
+static inline struct imx93_blk_ctrl_domain *
+to_imx93_blk_ctrl_domain(struct generic_pm_domain *genpd)
+{
+ return container_of(genpd, struct imx93_blk_ctrl_domain, genpd);
+}
+
+static int imx93_blk_ctrl_set_qos(struct imx93_blk_ctrl_domain *domain)
+{
+ const struct imx93_blk_ctrl_domain_data *data = domain->data;
+ struct imx93_blk_ctrl *bc = domain->bc;
+ const struct imx93_blk_ctrl_qos *qos;
+ u32 val, mask;
+ int i;
+
+ for (i = 0; i < data->num_qos; i++) {
+ qos = &data->qos[i];
+
+ mask = PRIO_MASK << qos->cfg_off;
+ mask |= PRIO_MASK << (qos->cfg_off + 4);
+ val = qos->cfg_prio << qos->cfg_off;
+ val |= qos->default_prio << (qos->cfg_off + 4);
+
+ regmap_write_bits(bc->regmap, qos->reg, mask, val);
+
+ dev_dbg(bc->dev, "data->qos[i].reg 0x%x 0x%x\n", qos->reg, val);
+ }
+
+ return 0;
+}
+
+static int imx93_blk_ctrl_power_on(struct generic_pm_domain *genpd)
+{
+ struct imx93_blk_ctrl_domain *domain = to_imx93_blk_ctrl_domain(genpd);
+ const struct imx93_blk_ctrl_domain_data *data = domain->data;
+ struct imx93_blk_ctrl *bc = domain->bc;
+ int ret;
+
+ ret = clk_bulk_prepare_enable(bc->num_clks, bc->clks);
+ if (ret) {
+ dev_err(bc->dev, "failed to enable bus clocks\n");
+ return ret;
+ }
+
+ ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
+ if (ret) {
+ clk_bulk_disable_unprepare(bc->num_clks, bc->clks);
+ dev_err(bc->dev, "failed to enable clocks\n");
+ return ret;
+ }
+
+ ret = pm_runtime_get_sync(bc->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(bc->dev);
+ dev_err(bc->dev, "failed to power up domain\n");
+ goto disable_clk;
+ }
+
+ /* ungate clk */
+ regmap_clear_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
+
+ /* release reset */
+ regmap_set_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
+
+ dev_dbg(bc->dev, "pd_on: name: %s\n", genpd->name);
+
+ return imx93_blk_ctrl_set_qos(domain);
+
+disable_clk:
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+
+ clk_bulk_disable_unprepare(bc->num_clks, bc->clks);
+
+ return ret;
+}
+
+static int imx93_blk_ctrl_power_off(struct generic_pm_domain *genpd)
+{
+ struct imx93_blk_ctrl_domain *domain = to_imx93_blk_ctrl_domain(genpd);
+ const struct imx93_blk_ctrl_domain_data *data = domain->data;
+ struct imx93_blk_ctrl *bc = domain->bc;
+
+ dev_dbg(bc->dev, "pd_off: name: %s\n", genpd->name);
+
+ regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
+ regmap_set_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
+
+ pm_runtime_put(bc->dev);
+
+ clk_bulk_disable_unprepare(data->num_clks, domain->clks);
+
+ clk_bulk_disable_unprepare(bc->num_clks, bc->clks);
+
+ return 0;
+}
+
+static int imx93_blk_ctrl_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct imx93_blk_ctrl_data *bc_data = of_device_get_match_data(dev);
+ struct imx93_blk_ctrl *bc;
+ void __iomem *base;
+ int i, ret;
+
+ struct regmap_config regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .rd_table = bc_data->reg_access_table,
+ .wr_table = bc_data->reg_access_table,
+ .max_register = SZ_4K,
+ };
+
+ bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
+ if (!bc)
+ return -ENOMEM;
+
+ bc->dev = dev;
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config);
+ if (IS_ERR(bc->regmap))
+ return dev_err_probe(dev, PTR_ERR(bc->regmap),
+ "failed to init regmap\n");
+
+ bc->domains = devm_kcalloc(dev, bc_data->num_domains,
+ sizeof(struct imx93_blk_ctrl_domain),
+ GFP_KERNEL);
+ if (!bc->domains)
+ return -ENOMEM;
+
+ bc->onecell_data.num_domains = bc_data->num_domains;
+ bc->onecell_data.domains =
+ devm_kcalloc(dev, bc_data->num_domains,
+ sizeof(struct generic_pm_domain *), GFP_KERNEL);
+ if (!bc->onecell_data.domains)
+ return -ENOMEM;
+
+ for (i = 0; i < bc_data->num_clks; i++)
+ bc->clks[i].id = bc_data->clk_names[i];
+ bc->num_clks = bc_data->num_clks;
+
+ ret = devm_clk_bulk_get(dev, bc->num_clks, bc->clks);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to get bus clock\n");
+ return ret;
+ }
+
+ for (i = 0; i < bc_data->num_domains; i++) {
+ const struct imx93_blk_ctrl_domain_data *data = &bc_data->domains[i];
+ struct imx93_blk_ctrl_domain *domain = &bc->domains[i];
+ int j;
+
+ domain->data = data;
+
+ for (j = 0; j < data->num_clks; j++)
+ domain->clks[j].id = data->clk_names[j];
+
+ ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to get clock\n");
+ goto cleanup_pds;
+ }
+
+ domain->genpd.name = data->name;
+ domain->genpd.power_on = imx93_blk_ctrl_power_on;
+ domain->genpd.power_off = imx93_blk_ctrl_power_off;
+ domain->bc = bc;
+
+ ret = pm_genpd_init(&domain->genpd, NULL, true);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to init power domain\n");
+ goto cleanup_pds;
+ }
+
+ bc->onecell_data.domains[i] = &domain->genpd;
+ }
+
+ pm_runtime_enable(dev);
+
+ ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data);
+ if (ret) {
+ dev_err_probe(dev, ret, "failed to add power domain provider\n");
+ goto cleanup_pds;
+ }
+
+ dev_set_drvdata(dev, bc);
+
+ return 0;
+
+cleanup_pds:
+ for (i--; i >= 0; i--)
+ pm_genpd_remove(&bc->domains[i].genpd);
+
+ return ret;
+}
+
+static int imx93_blk_ctrl_remove(struct platform_device *pdev)
+{
+ struct imx93_blk_ctrl *bc = dev_get_drvdata(&pdev->dev);
+ int i;
+
+ of_genpd_del_provider(pdev->dev.of_node);
+
+ for (i = 0; bc->onecell_data.num_domains; i++) {
+ struct imx93_blk_ctrl_domain *domain = &bc->domains[i];
+
+ pm_genpd_remove(&domain->genpd);
+ }
+
+ return 0;
+}
+
+static const struct imx93_blk_ctrl_domain_data imx93_media_blk_ctl_domain_data[] = {
+ [IMX93_MEDIABLK_PD_MIPI_DSI] = {
+ .name = "mediablk-mipi-dsi",
+ .clk_names = (const char *[]){ "dsi" },
+ .num_clks = 1,
+ .rst_mask = BIT(11) | BIT(12),
+ .clk_mask = BIT(11) | BIT(12),
+ },
+ [IMX93_MEDIABLK_PD_MIPI_CSI] = {
+ .name = "mediablk-mipi-csi",
+ .clk_names = (const char *[]){ "cam", "csi" },
+ .num_clks = 2,
+ .rst_mask = BIT(9) | BIT(10),
+ .clk_mask = BIT(9) | BIT(10),
+ },
+ [IMX93_MEDIABLK_PD_PXP] = {
+ .name = "mediablk-pxp",
+ .clk_names = (const char *[]){ "pxp" },
+ .num_clks = 1,
+ .rst_mask = BIT(7) | BIT(8),
+ .clk_mask = BIT(7) | BIT(8),
+ .num_qos = 2,
+ .qos = {
+ {
+ .reg = PXP_QOS_REG,
+ .cfg_off = PXP_R_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(6),
+ }, {
+ .reg = PXP_QOS_REG,
+ .cfg_off = PXP_W_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(6),
+ }
+ }
+ },
+ [IMX93_MEDIABLK_PD_LCDIF] = {
+ .name = "mediablk-lcdif",
+ .clk_names = (const char *[]){ "disp", "lcdif" },
+ .num_clks = 2,
+ .rst_mask = BIT(4) | BIT(5) | BIT(6),
+ .clk_mask = BIT(4) | BIT(5) | BIT(6),
+ .num_qos = 1,
+ .qos = {
+ {
+ .reg = LCDIF_QOS_REG,
+ .cfg_off = LCDIF_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(7),
+ }
+ }
+ },
+ [IMX93_MEDIABLK_PD_ISI] = {
+ .name = "mediablk-isi",
+ .clk_names = (const char *[]){ "isi" },
+ .num_clks = 1,
+ .rst_mask = BIT(2) | BIT(3),
+ .clk_mask = BIT(2) | BIT(3),
+ .num_qos = 4,
+ .qos = {
+ {
+ .reg = ISI_QOS_REG,
+ .cfg_off = ISI_Y_W_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(7),
+ }, {
+ .reg = ISI_QOS_REG,
+ .cfg_off = ISI_Y_R_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(7),
+ }, {
+ .reg = ISI_QOS_REG,
+ .cfg_off = ISI_U_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(7),
+ }, {
+ .reg = ISI_QOS_REG,
+ .cfg_off = ISI_V_CFG_QOS_OFF,
+ .default_prio = PRIO(3),
+ .cfg_prio = PRIO(7),
+ }
+ }
+ },
+};
+
+static const struct regmap_range imx93_media_blk_ctl_yes_ranges[] = {
+ regmap_reg_range(BLK_SFT_RSTN, BLK_CLK_EN),
+ regmap_reg_range(LCDIF_QOS_REG, ISI_CACHE_REG),
+ regmap_reg_range(ISI_QOS_REG, ISI_QOS_REG),
+};
+
+static const struct regmap_access_table imx93_media_blk_ctl_access_table = {
+ .yes_ranges = imx93_media_blk_ctl_yes_ranges,
+ .n_yes_ranges = ARRAY_SIZE(imx93_media_blk_ctl_yes_ranges),
+};
+
+static const struct imx93_blk_ctrl_data imx93_media_blk_ctl_dev_data = {
+ .domains = imx93_media_blk_ctl_domain_data,
+ .num_domains = ARRAY_SIZE(imx93_media_blk_ctl_domain_data),
+ .clk_names = (const char *[]){ "axi", "apb", "nic", },
+ .num_clks = 3,
+ .reg_access_table = &imx93_media_blk_ctl_access_table,
+};
+
+static const struct of_device_id imx93_blk_ctrl_of_match[] = {
+ {
+ .compatible = "fsl,imx93-media-blk-ctrl",
+ .data = &imx93_media_blk_ctl_dev_data
+ }, {
+ /* Sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, imx93_blk_ctrl_of_match);
+
+static struct platform_driver imx93_blk_ctrl_driver = {
+ .probe = imx93_blk_ctrl_probe,
+ .remove = imx93_blk_ctrl_remove,
+ .driver = {
+ .name = "imx93-blk-ctrl",
+ .of_match_table = imx93_blk_ctrl_of_match,
+ },
+};
+module_platform_driver(imx93_blk_ctrl_driver);
+
+MODULE_AUTHOR("Peng Fan <peng.fan@nxp.com>");
+MODULE_DESCRIPTION("i.MX93 BLK CTRL driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2022 NXP
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/of_device.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+
+#define MIX_SLICE_SW_CTRL_OFF 0x20
+#define SLICE_SW_CTRL_PSW_CTRL_OFF_MASK BIT(4)
+#define SLICE_SW_CTRL_PDN_SOFT_MASK BIT(31)
+
+#define MIX_FUNC_STAT_OFF 0xB4
+
+#define FUNC_STAT_PSW_STAT_MASK BIT(0)
+#define FUNC_STAT_RST_STAT_MASK BIT(2)
+#define FUNC_STAT_ISO_STAT_MASK BIT(4)
+
+struct imx93_power_domain {
+ struct generic_pm_domain genpd;
+ struct device *dev;
+ void __iomem *addr;
+ struct clk_bulk_data *clks;
+ int num_clks;
+ bool init_off;
+};
+
+#define to_imx93_pd(_genpd) container_of(_genpd, struct imx93_power_domain, genpd)
+
+static int imx93_pd_on(struct generic_pm_domain *genpd)
+{
+ struct imx93_power_domain *domain = to_imx93_pd(genpd);
+ void __iomem *addr = domain->addr;
+ u32 val;
+ int ret;
+
+ ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
+ if (ret) {
+ dev_err(domain->dev, "failed to enable clocks for domain: %s\n", genpd->name);
+ return ret;
+ }
+
+ val = readl(addr + MIX_SLICE_SW_CTRL_OFF);
+ val &= ~SLICE_SW_CTRL_PDN_SOFT_MASK;
+ writel(val, addr + MIX_SLICE_SW_CTRL_OFF);
+
+ ret = readl_poll_timeout(addr + MIX_FUNC_STAT_OFF, val,
+ !(val & FUNC_STAT_ISO_STAT_MASK), 1, 10000);
+ if (ret) {
+ dev_err(domain->dev, "pd_on timeout: name: %s, stat: %x\n", genpd->name, val);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int imx93_pd_off(struct generic_pm_domain *genpd)
+{
+ struct imx93_power_domain *domain = to_imx93_pd(genpd);
+ void __iomem *addr = domain->addr;
+ int ret;
+ u32 val;
+
+ /* Power off MIX */
+ val = readl(addr + MIX_SLICE_SW_CTRL_OFF);
+ val |= SLICE_SW_CTRL_PDN_SOFT_MASK;
+ writel(val, addr + MIX_SLICE_SW_CTRL_OFF);
+
+ ret = readl_poll_timeout(addr + MIX_FUNC_STAT_OFF, val,
+ val & FUNC_STAT_PSW_STAT_MASK, 1, 1000);
+ if (ret) {
+ dev_err(domain->dev, "pd_off timeout: name: %s, stat: %x\n", genpd->name, val);
+ return ret;
+ }
+
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+ return 0;
+};
+
+static int imx93_pd_remove(struct platform_device *pdev)
+{
+ struct imx93_power_domain *domain = platform_get_drvdata(pdev);
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+
+ if (!domain->init_off)
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+ of_genpd_del_provider(np);
+ pm_genpd_remove(&domain->genpd);
+
+ return 0;
+}
+
+static int imx93_pd_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct imx93_power_domain *domain;
+ int ret;
+
+ domain = devm_kzalloc(dev, sizeof(*domain), GFP_KERNEL);
+ if (!domain)
+ return -ENOMEM;
+
+ domain->addr = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(domain->addr))
+ return PTR_ERR(domain->addr);
+
+ domain->num_clks = devm_clk_bulk_get_all(dev, &domain->clks);
+ if (domain->num_clks < 0)
+ return dev_err_probe(dev, domain->num_clks, "Failed to get domain's clocks\n");
+
+ domain->genpd.name = dev_name(dev);
+ domain->genpd.power_off = imx93_pd_off;
+ domain->genpd.power_on = imx93_pd_on;
+ domain->dev = dev;
+
+ domain->init_off = readl(domain->addr + MIX_FUNC_STAT_OFF) & FUNC_STAT_ISO_STAT_MASK;
+ /* Just to sync the status of hardware */
+ if (!domain->init_off) {
+ ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
+ if (ret) {
+ dev_err(domain->dev, "failed to enable clocks for domain: %s\n",
+ domain->genpd.name);
+ return ret;
+ }
+ }
+
+ ret = pm_genpd_init(&domain->genpd, NULL, domain->init_off);
+ if (ret)
+ goto err_clk_unprepare;
+
+ platform_set_drvdata(pdev, domain);
+
+ ret = of_genpd_add_provider_simple(np, &domain->genpd);
+ if (ret)
+ goto err_genpd_remove;
+
+ return 0;
+
+err_genpd_remove:
+ pm_genpd_remove(&domain->genpd);
+
+err_clk_unprepare:
+ if (!domain->init_off)
+ clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+ return ret;
+}
+
+static const struct of_device_id imx93_pd_ids[] = {
+ { .compatible = "fsl,imx93-src-slice" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, imx93_pd_ids);
+
+static struct platform_driver imx93_power_domain_driver = {
+ .driver = {
+ .name = "imx93_power_domain",
+ .of_match_table = imx93_pd_ids,
+ },
+ .probe = imx93_pd_probe,
+ .remove = imx93_pd_remove,
+};
+module_platform_driver(imx93_power_domain_driver);
+
+MODULE_AUTHOR("Peng Fan <peng.fan@nxp.com>");
+MODULE_DESCRIPTION("NXP i.MX93 power domain driver");
+MODULE_LICENSE("GPL");
ifeq ($(CONFIG_ARM),y)
obj-$(CONFIG_ARCH_MXC) += soc-imx.o
endif
-obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
-obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o
obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o
-obj-$(CONFIG_IMX8M_BLK_CTRL) += imx8m-blk-ctrl.o
-obj-$(CONFIG_IMX8M_BLK_CTRL) += imx8mp-blk-ctrl.o
-obj-$(CONFIG_SOC_IMX9) += imx93-src.o imx93-pd.o
-obj-$(CONFIG_IMX9_BLK_CTRL) += imx93-blk-ctrl.o
+obj-$(CONFIG_SOC_IMX9) += imx93-src.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
- * Copyright 2011-2013 Freescale Semiconductor, Inc.
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/regmap.h>
-#include <linux/regulator/consumer.h>
-
-#define GPC_CNTR 0x000
-
-#define GPC_PGC_CTRL_OFFS 0x0
-#define GPC_PGC_PUPSCR_OFFS 0x4
-#define GPC_PGC_PDNSCR_OFFS 0x8
-#define GPC_PGC_SW2ISO_SHIFT 0x8
-#define GPC_PGC_SW_SHIFT 0x0
-
-#define GPC_PGC_PCI_PDN 0x200
-#define GPC_PGC_PCI_SR 0x20c
-
-#define GPC_PGC_GPU_PDN 0x260
-#define GPC_PGC_GPU_PUPSCR 0x264
-#define GPC_PGC_GPU_PDNSCR 0x268
-#define GPC_PGC_GPU_SR 0x26c
-
-#define GPC_PGC_DISP_PDN 0x240
-#define GPC_PGC_DISP_SR 0x24c
-
-#define GPU_VPU_PUP_REQ BIT(1)
-#define GPU_VPU_PDN_REQ BIT(0)
-
-#define GPC_CLK_MAX 7
-
-#define PGC_DOMAIN_FLAG_NO_PD BIT(0)
-
-struct imx_pm_domain {
- struct generic_pm_domain base;
- struct regmap *regmap;
- struct regulator *supply;
- struct clk *clk[GPC_CLK_MAX];
- int num_clks;
- unsigned int reg_offs;
- signed char cntr_pdn_bit;
- unsigned int ipg_rate_mhz;
-};
-
-static inline struct imx_pm_domain *
-to_imx_pm_domain(struct generic_pm_domain *genpd)
-{
- return container_of(genpd, struct imx_pm_domain, base);
-}
-
-static int imx6_pm_domain_power_off(struct generic_pm_domain *genpd)
-{
- struct imx_pm_domain *pd = to_imx_pm_domain(genpd);
- int iso, iso2sw;
- u32 val;
-
- /* Read ISO and ISO2SW power down delays */
- regmap_read(pd->regmap, pd->reg_offs + GPC_PGC_PDNSCR_OFFS, &val);
- iso = val & 0x3f;
- iso2sw = (val >> 8) & 0x3f;
-
- /* Gate off domain when powered down */
- regmap_update_bits(pd->regmap, pd->reg_offs + GPC_PGC_CTRL_OFFS,
- 0x1, 0x1);
-
- /* Request GPC to power down domain */
- val = BIT(pd->cntr_pdn_bit);
- regmap_update_bits(pd->regmap, GPC_CNTR, val, val);
-
- /* Wait ISO + ISO2SW IPG clock cycles */
- udelay(DIV_ROUND_UP(iso + iso2sw, pd->ipg_rate_mhz));
-
- if (pd->supply)
- regulator_disable(pd->supply);
-
- return 0;
-}
-
-static int imx6_pm_domain_power_on(struct generic_pm_domain *genpd)
-{
- struct imx_pm_domain *pd = to_imx_pm_domain(genpd);
- int i, ret;
- u32 val, req;
-
- if (pd->supply) {
- ret = regulator_enable(pd->supply);
- if (ret) {
- pr_err("%s: failed to enable regulator: %d\n",
- __func__, ret);
- return ret;
- }
- }
-
- /* Enable reset clocks for all devices in the domain */
- for (i = 0; i < pd->num_clks; i++)
- clk_prepare_enable(pd->clk[i]);
-
- /* Gate off domain when powered down */
- regmap_update_bits(pd->regmap, pd->reg_offs + GPC_PGC_CTRL_OFFS,
- 0x1, 0x1);
-
- /* Request GPC to power up domain */
- req = BIT(pd->cntr_pdn_bit + 1);
- regmap_update_bits(pd->regmap, GPC_CNTR, req, req);
-
- /* Wait for the PGC to handle the request */
- ret = regmap_read_poll_timeout(pd->regmap, GPC_CNTR, val, !(val & req),
- 1, 50);
- if (ret)
- pr_err("powerup request on domain %s timed out\n", genpd->name);
-
- /* Wait for reset to propagate through peripherals */
- usleep_range(5, 10);
-
- /* Disable reset clocks for all devices in the domain */
- for (i = 0; i < pd->num_clks; i++)
- clk_disable_unprepare(pd->clk[i]);
-
- return 0;
-}
-
-static int imx_pgc_get_clocks(struct device *dev, struct imx_pm_domain *domain)
-{
- int i, ret;
-
- for (i = 0; ; i++) {
- struct clk *clk = of_clk_get(dev->of_node, i);
- if (IS_ERR(clk))
- break;
- if (i >= GPC_CLK_MAX) {
- dev_err(dev, "more than %d clocks\n", GPC_CLK_MAX);
- ret = -EINVAL;
- goto clk_err;
- }
- domain->clk[i] = clk;
- }
- domain->num_clks = i;
-
- return 0;
-
-clk_err:
- while (i--)
- clk_put(domain->clk[i]);
-
- return ret;
-}
-
-static void imx_pgc_put_clocks(struct imx_pm_domain *domain)
-{
- int i;
-
- for (i = domain->num_clks - 1; i >= 0; i--)
- clk_put(domain->clk[i]);
-}
-
-static int imx_pgc_parse_dt(struct device *dev, struct imx_pm_domain *domain)
-{
- /* try to get the domain supply regulator */
- domain->supply = devm_regulator_get_optional(dev, "power");
- if (IS_ERR(domain->supply)) {
- if (PTR_ERR(domain->supply) == -ENODEV)
- domain->supply = NULL;
- else
- return PTR_ERR(domain->supply);
- }
-
- /* try to get all clocks needed for reset propagation */
- return imx_pgc_get_clocks(dev, domain);
-}
-
-static int imx_pgc_power_domain_probe(struct platform_device *pdev)
-{
- struct imx_pm_domain *domain = pdev->dev.platform_data;
- struct device *dev = &pdev->dev;
- int ret;
-
- /* if this PD is associated with a DT node try to parse it */
- if (dev->of_node) {
- ret = imx_pgc_parse_dt(dev, domain);
- if (ret)
- return ret;
- }
-
- /* initially power on the domain */
- if (domain->base.power_on)
- domain->base.power_on(&domain->base);
-
- if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
- pm_genpd_init(&domain->base, NULL, false);
- ret = of_genpd_add_provider_simple(dev->of_node, &domain->base);
- if (ret)
- goto genpd_err;
- }
-
- device_link_add(dev, dev->parent, DL_FLAG_AUTOREMOVE_CONSUMER);
-
- return 0;
-
-genpd_err:
- pm_genpd_remove(&domain->base);
- imx_pgc_put_clocks(domain);
-
- return ret;
-}
-
-static int imx_pgc_power_domain_remove(struct platform_device *pdev)
-{
- struct imx_pm_domain *domain = pdev->dev.platform_data;
-
- if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
- of_genpd_del_provider(pdev->dev.of_node);
- pm_genpd_remove(&domain->base);
- imx_pgc_put_clocks(domain);
- }
-
- return 0;
-}
-
-static const struct platform_device_id imx_pgc_power_domain_id[] = {
- { "imx-pgc-power-domain"},
- { },
-};
-
-static struct platform_driver imx_pgc_power_domain_driver = {
- .driver = {
- .name = "imx-pgc-pd",
- },
- .probe = imx_pgc_power_domain_probe,
- .remove = imx_pgc_power_domain_remove,
- .id_table = imx_pgc_power_domain_id,
-};
-builtin_platform_driver(imx_pgc_power_domain_driver)
-
-#define GPC_PGC_DOMAIN_ARM 0
-#define GPC_PGC_DOMAIN_PU 1
-#define GPC_PGC_DOMAIN_DISPLAY 2
-#define GPC_PGC_DOMAIN_PCI 3
-
-static struct genpd_power_state imx6_pm_domain_pu_state = {
- .power_off_latency_ns = 25000,
- .power_on_latency_ns = 2000000,
-};
-
-static struct imx_pm_domain imx_gpc_domains[] = {
- [GPC_PGC_DOMAIN_ARM] = {
- .base = {
- .name = "ARM",
- .flags = GENPD_FLAG_ALWAYS_ON,
- },
- },
- [GPC_PGC_DOMAIN_PU] = {
- .base = {
- .name = "PU",
- .power_off = imx6_pm_domain_power_off,
- .power_on = imx6_pm_domain_power_on,
- .states = &imx6_pm_domain_pu_state,
- .state_count = 1,
- },
- .reg_offs = 0x260,
- .cntr_pdn_bit = 0,
- },
- [GPC_PGC_DOMAIN_DISPLAY] = {
- .base = {
- .name = "DISPLAY",
- .power_off = imx6_pm_domain_power_off,
- .power_on = imx6_pm_domain_power_on,
- },
- .reg_offs = 0x240,
- .cntr_pdn_bit = 4,
- },
- [GPC_PGC_DOMAIN_PCI] = {
- .base = {
- .name = "PCI",
- .power_off = imx6_pm_domain_power_off,
- .power_on = imx6_pm_domain_power_on,
- },
- .reg_offs = 0x200,
- .cntr_pdn_bit = 6,
- },
-};
-
-struct imx_gpc_dt_data {
- int num_domains;
- bool err009619_present;
- bool err006287_present;
-};
-
-static const struct imx_gpc_dt_data imx6q_dt_data = {
- .num_domains = 2,
- .err009619_present = false,
- .err006287_present = false,
-};
-
-static const struct imx_gpc_dt_data imx6qp_dt_data = {
- .num_domains = 2,
- .err009619_present = true,
- .err006287_present = false,
-};
-
-static const struct imx_gpc_dt_data imx6sl_dt_data = {
- .num_domains = 3,
- .err009619_present = false,
- .err006287_present = true,
-};
-
-static const struct imx_gpc_dt_data imx6sx_dt_data = {
- .num_domains = 4,
- .err009619_present = false,
- .err006287_present = false,
-};
-
-static const struct of_device_id imx_gpc_dt_ids[] = {
- { .compatible = "fsl,imx6q-gpc", .data = &imx6q_dt_data },
- { .compatible = "fsl,imx6qp-gpc", .data = &imx6qp_dt_data },
- { .compatible = "fsl,imx6sl-gpc", .data = &imx6sl_dt_data },
- { .compatible = "fsl,imx6sx-gpc", .data = &imx6sx_dt_data },
- { }
-};
-
-static const struct regmap_range yes_ranges[] = {
- regmap_reg_range(GPC_CNTR, GPC_CNTR),
- regmap_reg_range(GPC_PGC_PCI_PDN, GPC_PGC_PCI_SR),
- regmap_reg_range(GPC_PGC_GPU_PDN, GPC_PGC_GPU_SR),
- regmap_reg_range(GPC_PGC_DISP_PDN, GPC_PGC_DISP_SR),
-};
-
-static const struct regmap_access_table access_table = {
- .yes_ranges = yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(yes_ranges),
-};
-
-static const struct regmap_config imx_gpc_regmap_config = {
- .reg_bits = 32,
- .val_bits = 32,
- .reg_stride = 4,
- .rd_table = &access_table,
- .wr_table = &access_table,
- .max_register = 0x2ac,
- .fast_io = true,
-};
-
-static struct generic_pm_domain *imx_gpc_onecell_domains[] = {
- &imx_gpc_domains[GPC_PGC_DOMAIN_ARM].base,
- &imx_gpc_domains[GPC_PGC_DOMAIN_PU].base,
-};
-
-static struct genpd_onecell_data imx_gpc_onecell_data = {
- .domains = imx_gpc_onecell_domains,
- .num_domains = 2,
-};
-
-static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap,
- unsigned int num_domains)
-{
- struct imx_pm_domain *domain;
- int i, ret;
-
- for (i = 0; i < num_domains; i++) {
- domain = &imx_gpc_domains[i];
- domain->regmap = regmap;
- domain->ipg_rate_mhz = 66;
-
- if (i == 1) {
- domain->supply = devm_regulator_get(dev, "pu");
- if (IS_ERR(domain->supply))
- return PTR_ERR(domain->supply);
-
- ret = imx_pgc_get_clocks(dev, domain);
- if (ret)
- goto clk_err;
-
- domain->base.power_on(&domain->base);
- }
- }
-
- for (i = 0; i < num_domains; i++)
- pm_genpd_init(&imx_gpc_domains[i].base, NULL, false);
-
- if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
- ret = of_genpd_add_provider_onecell(dev->of_node,
- &imx_gpc_onecell_data);
- if (ret)
- goto genpd_err;
- }
-
- return 0;
-
-genpd_err:
- for (i = 0; i < num_domains; i++)
- pm_genpd_remove(&imx_gpc_domains[i].base);
- imx_pgc_put_clocks(&imx_gpc_domains[GPC_PGC_DOMAIN_PU]);
-clk_err:
- return ret;
-}
-
-static int imx_gpc_probe(struct platform_device *pdev)
-{
- const struct of_device_id *of_id =
- of_match_device(imx_gpc_dt_ids, &pdev->dev);
- const struct imx_gpc_dt_data *of_id_data = of_id->data;
- struct device_node *pgc_node;
- struct regmap *regmap;
- void __iomem *base;
- int ret;
-
- pgc_node = of_get_child_by_name(pdev->dev.of_node, "pgc");
-
- /* bail out if DT too old and doesn't provide the necessary info */
- if (!of_property_read_bool(pdev->dev.of_node, "#power-domain-cells") &&
- !pgc_node)
- return 0;
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- regmap = devm_regmap_init_mmio_clk(&pdev->dev, NULL, base,
- &imx_gpc_regmap_config);
- if (IS_ERR(regmap)) {
- ret = PTR_ERR(regmap);
- dev_err(&pdev->dev, "failed to init regmap: %d\n",
- ret);
- return ret;
- }
-
- /*
- * Disable PU power down by runtime PM if ERR009619 is present.
- *
- * The PRE clock will be paused for several cycles when turning on the
- * PU domain LDO from power down state. If PRE is in use at that time,
- * the IPU/PRG cannot get the correct display data from the PRE.
- *
- * This is not a concern when the whole system enters suspend state, so
- * it's safe to power down PU in this case.
- */
- if (of_id_data->err009619_present)
- imx_gpc_domains[GPC_PGC_DOMAIN_PU].base.flags |=
- GENPD_FLAG_RPM_ALWAYS_ON;
-
- /* Keep DISP always on if ERR006287 is present */
- if (of_id_data->err006287_present)
- imx_gpc_domains[GPC_PGC_DOMAIN_DISPLAY].base.flags |=
- GENPD_FLAG_ALWAYS_ON;
-
- if (!pgc_node) {
- ret = imx_gpc_old_dt_init(&pdev->dev, regmap,
- of_id_data->num_domains);
- if (ret)
- return ret;
- } else {
- struct imx_pm_domain *domain;
- struct platform_device *pd_pdev;
- struct device_node *np;
- struct clk *ipg_clk;
- unsigned int ipg_rate_mhz;
- int domain_index;
-
- ipg_clk = devm_clk_get(&pdev->dev, "ipg");
- if (IS_ERR(ipg_clk))
- return PTR_ERR(ipg_clk);
- ipg_rate_mhz = clk_get_rate(ipg_clk) / 1000000;
-
- for_each_child_of_node(pgc_node, np) {
- ret = of_property_read_u32(np, "reg", &domain_index);
- if (ret) {
- of_node_put(np);
- return ret;
- }
- if (domain_index >= of_id_data->num_domains)
- continue;
-
- pd_pdev = platform_device_alloc("imx-pgc-power-domain",
- domain_index);
- if (!pd_pdev) {
- of_node_put(np);
- return -ENOMEM;
- }
-
- ret = platform_device_add_data(pd_pdev,
- &imx_gpc_domains[domain_index],
- sizeof(imx_gpc_domains[domain_index]));
- if (ret) {
- platform_device_put(pd_pdev);
- of_node_put(np);
- return ret;
- }
- domain = pd_pdev->dev.platform_data;
- domain->regmap = regmap;
- domain->ipg_rate_mhz = ipg_rate_mhz;
-
- pd_pdev->dev.parent = &pdev->dev;
- pd_pdev->dev.of_node = np;
-
- ret = platform_device_add(pd_pdev);
- if (ret) {
- platform_device_put(pd_pdev);
- of_node_put(np);
- return ret;
- }
- }
- }
-
- return 0;
-}
-
-static int imx_gpc_remove(struct platform_device *pdev)
-{
- struct device_node *pgc_node;
- int ret;
-
- pgc_node = of_get_child_by_name(pdev->dev.of_node, "pgc");
-
- /* bail out if DT too old and doesn't provide the necessary info */
- if (!of_property_read_bool(pdev->dev.of_node, "#power-domain-cells") &&
- !pgc_node)
- return 0;
-
- /*
- * If the old DT binding is used the toplevel driver needs to
- * de-register the power domains
- */
- if (!pgc_node) {
- of_genpd_del_provider(pdev->dev.of_node);
-
- ret = pm_genpd_remove(&imx_gpc_domains[GPC_PGC_DOMAIN_PU].base);
- if (ret)
- return ret;
- imx_pgc_put_clocks(&imx_gpc_domains[GPC_PGC_DOMAIN_PU]);
-
- ret = pm_genpd_remove(&imx_gpc_domains[GPC_PGC_DOMAIN_ARM].base);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-static struct platform_driver imx_gpc_driver = {
- .driver = {
- .name = "imx-gpc",
- .of_match_table = imx_gpc_dt_ids,
- },
- .probe = imx_gpc_probe,
- .remove = imx_gpc_remove,
-};
-builtin_platform_driver(imx_gpc_driver)
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright 2017 Impinj, Inc
- * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
- *
- * Based on the code of analogus driver:
- *
- * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
- */
-
-#include <linux/clk.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-#include <linux/regulator/consumer.h>
-#include <linux/reset.h>
-#include <linux/sizes.h>
-#include <dt-bindings/power/imx7-power.h>
-#include <dt-bindings/power/imx8mq-power.h>
-#include <dt-bindings/power/imx8mm-power.h>
-#include <dt-bindings/power/imx8mn-power.h>
-#include <dt-bindings/power/imx8mp-power.h>
-
-#define GPC_LPCR_A_CORE_BSC 0x000
-
-#define GPC_PGC_CPU_MAPPING 0x0ec
-#define IMX8MP_GPC_PGC_CPU_MAPPING 0x1cc
-
-#define IMX7_USB_HSIC_PHY_A_CORE_DOMAIN BIT(6)
-#define IMX7_USB_OTG2_PHY_A_CORE_DOMAIN BIT(5)
-#define IMX7_USB_OTG1_PHY_A_CORE_DOMAIN BIT(4)
-#define IMX7_PCIE_PHY_A_CORE_DOMAIN BIT(3)
-#define IMX7_MIPI_PHY_A_CORE_DOMAIN BIT(2)
-
-#define IMX8M_PCIE2_A53_DOMAIN BIT(15)
-#define IMX8M_MIPI_CSI2_A53_DOMAIN BIT(14)
-#define IMX8M_MIPI_CSI1_A53_DOMAIN BIT(13)
-#define IMX8M_DISP_A53_DOMAIN BIT(12)
-#define IMX8M_HDMI_A53_DOMAIN BIT(11)
-#define IMX8M_VPU_A53_DOMAIN BIT(10)
-#define IMX8M_GPU_A53_DOMAIN BIT(9)
-#define IMX8M_DDR2_A53_DOMAIN BIT(8)
-#define IMX8M_DDR1_A53_DOMAIN BIT(7)
-#define IMX8M_OTG2_A53_DOMAIN BIT(5)
-#define IMX8M_OTG1_A53_DOMAIN BIT(4)
-#define IMX8M_PCIE1_A53_DOMAIN BIT(3)
-#define IMX8M_MIPI_A53_DOMAIN BIT(2)
-
-#define IMX8MM_VPUH1_A53_DOMAIN BIT(15)
-#define IMX8MM_VPUG2_A53_DOMAIN BIT(14)
-#define IMX8MM_VPUG1_A53_DOMAIN BIT(13)
-#define IMX8MM_DISPMIX_A53_DOMAIN BIT(12)
-#define IMX8MM_VPUMIX_A53_DOMAIN BIT(10)
-#define IMX8MM_GPUMIX_A53_DOMAIN BIT(9)
-#define IMX8MM_GPU_A53_DOMAIN (BIT(8) | BIT(11))
-#define IMX8MM_DDR1_A53_DOMAIN BIT(7)
-#define IMX8MM_OTG2_A53_DOMAIN BIT(5)
-#define IMX8MM_OTG1_A53_DOMAIN BIT(4)
-#define IMX8MM_PCIE_A53_DOMAIN BIT(3)
-#define IMX8MM_MIPI_A53_DOMAIN BIT(2)
-
-#define IMX8MN_DISPMIX_A53_DOMAIN BIT(12)
-#define IMX8MN_GPUMIX_A53_DOMAIN BIT(9)
-#define IMX8MN_DDR1_A53_DOMAIN BIT(7)
-#define IMX8MN_OTG1_A53_DOMAIN BIT(4)
-#define IMX8MN_MIPI_A53_DOMAIN BIT(2)
-
-#define IMX8MP_MEDIA_ISPDWP_A53_DOMAIN BIT(20)
-#define IMX8MP_HSIOMIX_A53_DOMAIN BIT(19)
-#define IMX8MP_MIPI_PHY2_A53_DOMAIN BIT(18)
-#define IMX8MP_HDMI_PHY_A53_DOMAIN BIT(17)
-#define IMX8MP_HDMIMIX_A53_DOMAIN BIT(16)
-#define IMX8MP_VPU_VC8000E_A53_DOMAIN BIT(15)
-#define IMX8MP_VPU_G2_A53_DOMAIN BIT(14)
-#define IMX8MP_VPU_G1_A53_DOMAIN BIT(13)
-#define IMX8MP_MEDIAMIX_A53_DOMAIN BIT(12)
-#define IMX8MP_GPU3D_A53_DOMAIN BIT(11)
-#define IMX8MP_VPUMIX_A53_DOMAIN BIT(10)
-#define IMX8MP_GPUMIX_A53_DOMAIN BIT(9)
-#define IMX8MP_GPU2D_A53_DOMAIN BIT(8)
-#define IMX8MP_AUDIOMIX_A53_DOMAIN BIT(7)
-#define IMX8MP_MLMIX_A53_DOMAIN BIT(6)
-#define IMX8MP_USB2_PHY_A53_DOMAIN BIT(5)
-#define IMX8MP_USB1_PHY_A53_DOMAIN BIT(4)
-#define IMX8MP_PCIE_PHY_A53_DOMAIN BIT(3)
-#define IMX8MP_MIPI_PHY1_A53_DOMAIN BIT(2)
-
-#define IMX8MP_GPC_PU_PGC_SW_PUP_REQ 0x0d8
-#define IMX8MP_GPC_PU_PGC_SW_PDN_REQ 0x0e4
-
-#define GPC_PU_PGC_SW_PUP_REQ 0x0f8
-#define GPC_PU_PGC_SW_PDN_REQ 0x104
-
-#define IMX7_USB_HSIC_PHY_SW_Pxx_REQ BIT(4)
-#define IMX7_USB_OTG2_PHY_SW_Pxx_REQ BIT(3)
-#define IMX7_USB_OTG1_PHY_SW_Pxx_REQ BIT(2)
-#define IMX7_PCIE_PHY_SW_Pxx_REQ BIT(1)
-#define IMX7_MIPI_PHY_SW_Pxx_REQ BIT(0)
-
-#define IMX8M_PCIE2_SW_Pxx_REQ BIT(13)
-#define IMX8M_MIPI_CSI2_SW_Pxx_REQ BIT(12)
-#define IMX8M_MIPI_CSI1_SW_Pxx_REQ BIT(11)
-#define IMX8M_DISP_SW_Pxx_REQ BIT(10)
-#define IMX8M_HDMI_SW_Pxx_REQ BIT(9)
-#define IMX8M_VPU_SW_Pxx_REQ BIT(8)
-#define IMX8M_GPU_SW_Pxx_REQ BIT(7)
-#define IMX8M_DDR2_SW_Pxx_REQ BIT(6)
-#define IMX8M_DDR1_SW_Pxx_REQ BIT(5)
-#define IMX8M_OTG2_SW_Pxx_REQ BIT(3)
-#define IMX8M_OTG1_SW_Pxx_REQ BIT(2)
-#define IMX8M_PCIE1_SW_Pxx_REQ BIT(1)
-#define IMX8M_MIPI_SW_Pxx_REQ BIT(0)
-
-#define IMX8MM_VPUH1_SW_Pxx_REQ BIT(13)
-#define IMX8MM_VPUG2_SW_Pxx_REQ BIT(12)
-#define IMX8MM_VPUG1_SW_Pxx_REQ BIT(11)
-#define IMX8MM_DISPMIX_SW_Pxx_REQ BIT(10)
-#define IMX8MM_VPUMIX_SW_Pxx_REQ BIT(8)
-#define IMX8MM_GPUMIX_SW_Pxx_REQ BIT(7)
-#define IMX8MM_GPU_SW_Pxx_REQ (BIT(6) | BIT(9))
-#define IMX8MM_DDR1_SW_Pxx_REQ BIT(5)
-#define IMX8MM_OTG2_SW_Pxx_REQ BIT(3)
-#define IMX8MM_OTG1_SW_Pxx_REQ BIT(2)
-#define IMX8MM_PCIE_SW_Pxx_REQ BIT(1)
-#define IMX8MM_MIPI_SW_Pxx_REQ BIT(0)
-
-#define IMX8MN_DISPMIX_SW_Pxx_REQ BIT(10)
-#define IMX8MN_GPUMIX_SW_Pxx_REQ BIT(7)
-#define IMX8MN_DDR1_SW_Pxx_REQ BIT(5)
-#define IMX8MN_OTG1_SW_Pxx_REQ BIT(2)
-#define IMX8MN_MIPI_SW_Pxx_REQ BIT(0)
-
-#define IMX8MP_DDRMIX_Pxx_REQ BIT(19)
-#define IMX8MP_MEDIA_ISP_DWP_Pxx_REQ BIT(18)
-#define IMX8MP_HSIOMIX_Pxx_REQ BIT(17)
-#define IMX8MP_MIPI_PHY2_Pxx_REQ BIT(16)
-#define IMX8MP_HDMI_PHY_Pxx_REQ BIT(15)
-#define IMX8MP_HDMIMIX_Pxx_REQ BIT(14)
-#define IMX8MP_VPU_VC8K_Pxx_REQ BIT(13)
-#define IMX8MP_VPU_G2_Pxx_REQ BIT(12)
-#define IMX8MP_VPU_G1_Pxx_REQ BIT(11)
-#define IMX8MP_MEDIMIX_Pxx_REQ BIT(10)
-#define IMX8MP_GPU_3D_Pxx_REQ BIT(9)
-#define IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ BIT(8)
-#define IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ BIT(7)
-#define IMX8MP_GPU_2D_Pxx_REQ BIT(6)
-#define IMX8MP_AUDIOMIX_Pxx_REQ BIT(5)
-#define IMX8MP_MLMIX_Pxx_REQ BIT(4)
-#define IMX8MP_USB2_PHY_Pxx_REQ BIT(3)
-#define IMX8MP_USB1_PHY_Pxx_REQ BIT(2)
-#define IMX8MP_PCIE_PHY_SW_Pxx_REQ BIT(1)
-#define IMX8MP_MIPI_PHY1_SW_Pxx_REQ BIT(0)
-
-#define GPC_M4_PU_PDN_FLG 0x1bc
-
-#define IMX8MP_GPC_PU_PWRHSK 0x190
-#define GPC_PU_PWRHSK 0x1fc
-
-#define IMX8M_GPU_HSK_PWRDNACKN BIT(26)
-#define IMX8M_VPU_HSK_PWRDNACKN BIT(25)
-#define IMX8M_DISP_HSK_PWRDNACKN BIT(24)
-#define IMX8M_GPU_HSK_PWRDNREQN BIT(6)
-#define IMX8M_VPU_HSK_PWRDNREQN BIT(5)
-#define IMX8M_DISP_HSK_PWRDNREQN BIT(4)
-
-#define IMX8MM_GPUMIX_HSK_PWRDNACKN BIT(29)
-#define IMX8MM_GPU_HSK_PWRDNACKN (BIT(27) | BIT(28))
-#define IMX8MM_VPUMIX_HSK_PWRDNACKN BIT(26)
-#define IMX8MM_DISPMIX_HSK_PWRDNACKN BIT(25)
-#define IMX8MM_HSIO_HSK_PWRDNACKN (BIT(23) | BIT(24))
-#define IMX8MM_GPUMIX_HSK_PWRDNREQN BIT(11)
-#define IMX8MM_GPU_HSK_PWRDNREQN (BIT(9) | BIT(10))
-#define IMX8MM_VPUMIX_HSK_PWRDNREQN BIT(8)
-#define IMX8MM_DISPMIX_HSK_PWRDNREQN BIT(7)
-#define IMX8MM_HSIO_HSK_PWRDNREQN (BIT(5) | BIT(6))
-
-#define IMX8MN_GPUMIX_HSK_PWRDNACKN (BIT(29) | BIT(27))
-#define IMX8MN_DISPMIX_HSK_PWRDNACKN BIT(25)
-#define IMX8MN_HSIO_HSK_PWRDNACKN BIT(23)
-#define IMX8MN_GPUMIX_HSK_PWRDNREQN (BIT(11) | BIT(9))
-#define IMX8MN_DISPMIX_HSK_PWRDNREQN BIT(7)
-#define IMX8MN_HSIO_HSK_PWRDNREQN BIT(5)
-
-#define IMX8MP_MEDIAMIX_PWRDNACKN BIT(30)
-#define IMX8MP_HDMIMIX_PWRDNACKN BIT(29)
-#define IMX8MP_HSIOMIX_PWRDNACKN BIT(28)
-#define IMX8MP_VPUMIX_PWRDNACKN BIT(26)
-#define IMX8MP_GPUMIX_PWRDNACKN BIT(25)
-#define IMX8MP_MLMIX_PWRDNACKN (BIT(23) | BIT(24))
-#define IMX8MP_AUDIOMIX_PWRDNACKN (BIT(20) | BIT(31))
-#define IMX8MP_MEDIAMIX_PWRDNREQN BIT(14)
-#define IMX8MP_HDMIMIX_PWRDNREQN BIT(13)
-#define IMX8MP_HSIOMIX_PWRDNREQN BIT(12)
-#define IMX8MP_VPUMIX_PWRDNREQN BIT(10)
-#define IMX8MP_GPUMIX_PWRDNREQN BIT(9)
-#define IMX8MP_MLMIX_PWRDNREQN (BIT(7) | BIT(8))
-#define IMX8MP_AUDIOMIX_PWRDNREQN (BIT(4) | BIT(15))
-
-/*
- * The PGC offset values in Reference Manual
- * (Rev. 1, 01/2018 and the older ones) GPC chapter's
- * GPC_PGC memory map are incorrect, below offset
- * values are from design RTL.
- */
-#define IMX7_PGC_MIPI 16
-#define IMX7_PGC_PCIE 17
-#define IMX7_PGC_USB_HSIC 20
-
-#define IMX8M_PGC_MIPI 16
-#define IMX8M_PGC_PCIE1 17
-#define IMX8M_PGC_OTG1 18
-#define IMX8M_PGC_OTG2 19
-#define IMX8M_PGC_DDR1 21
-#define IMX8M_PGC_GPU 23
-#define IMX8M_PGC_VPU 24
-#define IMX8M_PGC_DISP 26
-#define IMX8M_PGC_MIPI_CSI1 27
-#define IMX8M_PGC_MIPI_CSI2 28
-#define IMX8M_PGC_PCIE2 29
-
-#define IMX8MM_PGC_MIPI 16
-#define IMX8MM_PGC_PCIE 17
-#define IMX8MM_PGC_OTG1 18
-#define IMX8MM_PGC_OTG2 19
-#define IMX8MM_PGC_DDR1 21
-#define IMX8MM_PGC_GPU2D 22
-#define IMX8MM_PGC_GPUMIX 23
-#define IMX8MM_PGC_VPUMIX 24
-#define IMX8MM_PGC_GPU3D 25
-#define IMX8MM_PGC_DISPMIX 26
-#define IMX8MM_PGC_VPUG1 27
-#define IMX8MM_PGC_VPUG2 28
-#define IMX8MM_PGC_VPUH1 29
-
-#define IMX8MN_PGC_MIPI 16
-#define IMX8MN_PGC_OTG1 18
-#define IMX8MN_PGC_DDR1 21
-#define IMX8MN_PGC_GPUMIX 23
-#define IMX8MN_PGC_DISPMIX 26
-
-#define IMX8MP_PGC_NOC 9
-#define IMX8MP_PGC_MIPI1 12
-#define IMX8MP_PGC_PCIE 13
-#define IMX8MP_PGC_USB1 14
-#define IMX8MP_PGC_USB2 15
-#define IMX8MP_PGC_MLMIX 16
-#define IMX8MP_PGC_AUDIOMIX 17
-#define IMX8MP_PGC_GPU2D 18
-#define IMX8MP_PGC_GPUMIX 19
-#define IMX8MP_PGC_VPUMIX 20
-#define IMX8MP_PGC_GPU3D 21
-#define IMX8MP_PGC_MEDIAMIX 22
-#define IMX8MP_PGC_VPU_G1 23
-#define IMX8MP_PGC_VPU_G2 24
-#define IMX8MP_PGC_VPU_VC8000E 25
-#define IMX8MP_PGC_HDMIMIX 26
-#define IMX8MP_PGC_HDMI 27
-#define IMX8MP_PGC_MIPI2 28
-#define IMX8MP_PGC_HSIOMIX 29
-#define IMX8MP_PGC_MEDIA_ISP_DWP 30
-#define IMX8MP_PGC_DDRMIX 31
-
-#define GPC_PGC_CTRL(n) (0x800 + (n) * 0x40)
-#define GPC_PGC_SR(n) (GPC_PGC_CTRL(n) + 0xc)
-
-#define GPC_PGC_CTRL_PCR BIT(0)
-
-struct imx_pgc_regs {
- u16 map;
- u16 pup;
- u16 pdn;
- u16 hsk;
-};
-
-struct imx_pgc_domain {
- struct generic_pm_domain genpd;
- struct regmap *regmap;
- const struct imx_pgc_regs *regs;
- struct regulator *regulator;
- struct reset_control *reset;
- struct clk_bulk_data *clks;
- int num_clks;
-
- unsigned long pgc;
-
- const struct {
- u32 pxx;
- u32 map;
- u32 hskreq;
- u32 hskack;
- } bits;
-
- const int voltage;
- const bool keep_clocks;
- struct device *dev;
-
- unsigned int pgc_sw_pup_reg;
- unsigned int pgc_sw_pdn_reg;
-};
-
-struct imx_pgc_domain_data {
- const struct imx_pgc_domain *domains;
- size_t domains_num;
- const struct regmap_access_table *reg_access_table;
- const struct imx_pgc_regs *pgc_regs;
-};
-
-static inline struct imx_pgc_domain *
-to_imx_pgc_domain(struct generic_pm_domain *genpd)
-{
- return container_of(genpd, struct imx_pgc_domain, genpd);
-}
-
-static int imx_pgc_power_up(struct generic_pm_domain *genpd)
-{
- struct imx_pgc_domain *domain = to_imx_pgc_domain(genpd);
- u32 reg_val, pgc;
- int ret;
-
- ret = pm_runtime_get_sync(domain->dev);
- if (ret < 0) {
- pm_runtime_put_noidle(domain->dev);
- return ret;
- }
-
- if (!IS_ERR(domain->regulator)) {
- ret = regulator_enable(domain->regulator);
- if (ret) {
- dev_err(domain->dev,
- "failed to enable regulator: %pe\n",
- ERR_PTR(ret));
- goto out_put_pm;
- }
- }
-
- reset_control_assert(domain->reset);
-
- /* Enable reset clocks for all devices in the domain */
- ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
- if (ret) {
- dev_err(domain->dev, "failed to enable reset clocks\n");
- goto out_regulator_disable;
- }
-
- /* delays for reset to propagate */
- udelay(5);
-
- if (domain->bits.pxx) {
- /* request the domain to power up */
- regmap_update_bits(domain->regmap, domain->regs->pup,
- domain->bits.pxx, domain->bits.pxx);
- /*
- * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
- * for PUP_REQ/PDN_REQ bit to be cleared
- */
- ret = regmap_read_poll_timeout(domain->regmap,
- domain->regs->pup, reg_val,
- !(reg_val & domain->bits.pxx),
- 0, USEC_PER_MSEC);
- if (ret) {
- dev_err(domain->dev, "failed to command PGC\n");
- goto out_clk_disable;
- }
-
- /* disable power control */
- for_each_set_bit(pgc, &domain->pgc, 32) {
- regmap_clear_bits(domain->regmap, GPC_PGC_CTRL(pgc),
- GPC_PGC_CTRL_PCR);
- }
- }
-
- /* delay for reset to propagate */
- udelay(5);
-
- reset_control_deassert(domain->reset);
-
- /* request the ADB400 to power up */
- if (domain->bits.hskreq) {
- regmap_update_bits(domain->regmap, domain->regs->hsk,
- domain->bits.hskreq, domain->bits.hskreq);
-
- /*
- * ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk, reg_val,
- * (reg_val & domain->bits.hskack), 0,
- * USEC_PER_MSEC);
- * Technically we need the commented code to wait handshake. But that needs
- * the BLK-CTL module BUS clk-en bit being set.
- *
- * There is a separate BLK-CTL module and we will have such a driver for it,
- * that driver will set the BUS clk-en bit and handshake will be triggered
- * automatically there. Just add a delay and suppose the handshake finish
- * after that.
- */
- }
-
- /* Disable reset clocks for all devices in the domain */
- if (!domain->keep_clocks)
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-
- return 0;
-
-out_clk_disable:
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-out_regulator_disable:
- if (!IS_ERR(domain->regulator))
- regulator_disable(domain->regulator);
-out_put_pm:
- pm_runtime_put(domain->dev);
-
- return ret;
-}
-
-static int imx_pgc_power_down(struct generic_pm_domain *genpd)
-{
- struct imx_pgc_domain *domain = to_imx_pgc_domain(genpd);
- u32 reg_val, pgc;
- int ret;
-
- /* Enable reset clocks for all devices in the domain */
- if (!domain->keep_clocks) {
- ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
- if (ret) {
- dev_err(domain->dev, "failed to enable reset clocks\n");
- return ret;
- }
- }
-
- /* request the ADB400 to power down */
- if (domain->bits.hskreq) {
- regmap_clear_bits(domain->regmap, domain->regs->hsk,
- domain->bits.hskreq);
-
- ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk,
- reg_val,
- !(reg_val & domain->bits.hskack),
- 0, USEC_PER_MSEC);
- if (ret) {
- dev_err(domain->dev, "failed to power down ADB400\n");
- goto out_clk_disable;
- }
- }
-
- if (domain->bits.pxx) {
- /* enable power control */
- for_each_set_bit(pgc, &domain->pgc, 32) {
- regmap_update_bits(domain->regmap, GPC_PGC_CTRL(pgc),
- GPC_PGC_CTRL_PCR, GPC_PGC_CTRL_PCR);
- }
-
- /* request the domain to power down */
- regmap_update_bits(domain->regmap, domain->regs->pdn,
- domain->bits.pxx, domain->bits.pxx);
- /*
- * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait
- * for PUP_REQ/PDN_REQ bit to be cleared
- */
- ret = regmap_read_poll_timeout(domain->regmap,
- domain->regs->pdn, reg_val,
- !(reg_val & domain->bits.pxx),
- 0, USEC_PER_MSEC);
- if (ret) {
- dev_err(domain->dev, "failed to command PGC\n");
- goto out_clk_disable;
- }
- }
-
- /* Disable reset clocks for all devices in the domain */
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-
- if (!IS_ERR(domain->regulator)) {
- ret = regulator_disable(domain->regulator);
- if (ret) {
- dev_err(domain->dev,
- "failed to disable regulator: %pe\n",
- ERR_PTR(ret));
- return ret;
- }
- }
-
- pm_runtime_put_sync_suspend(domain->dev);
-
- return 0;
-
-out_clk_disable:
- if (!domain->keep_clocks)
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-
- return ret;
-}
-
-static const struct imx_pgc_domain imx7_pgc_domains[] = {
- [IMX7_POWER_DOMAIN_MIPI_PHY] = {
- .genpd = {
- .name = "mipi-phy",
- },
- .bits = {
- .pxx = IMX7_MIPI_PHY_SW_Pxx_REQ,
- .map = IMX7_MIPI_PHY_A_CORE_DOMAIN,
- },
- .voltage = 1000000,
- .pgc = BIT(IMX7_PGC_MIPI),
- },
-
- [IMX7_POWER_DOMAIN_PCIE_PHY] = {
- .genpd = {
- .name = "pcie-phy",
- },
- .bits = {
- .pxx = IMX7_PCIE_PHY_SW_Pxx_REQ,
- .map = IMX7_PCIE_PHY_A_CORE_DOMAIN,
- },
- .voltage = 1000000,
- .pgc = BIT(IMX7_PGC_PCIE),
- },
-
- [IMX7_POWER_DOMAIN_USB_HSIC_PHY] = {
- .genpd = {
- .name = "usb-hsic-phy",
- },
- .bits = {
- .pxx = IMX7_USB_HSIC_PHY_SW_Pxx_REQ,
- .map = IMX7_USB_HSIC_PHY_A_CORE_DOMAIN,
- },
- .voltage = 1200000,
- .pgc = BIT(IMX7_PGC_USB_HSIC),
- },
-};
-
-static const struct regmap_range imx7_yes_ranges[] = {
- regmap_reg_range(GPC_LPCR_A_CORE_BSC,
- GPC_M4_PU_PDN_FLG),
- regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_MIPI),
- GPC_PGC_SR(IMX7_PGC_MIPI)),
- regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_PCIE),
- GPC_PGC_SR(IMX7_PGC_PCIE)),
- regmap_reg_range(GPC_PGC_CTRL(IMX7_PGC_USB_HSIC),
- GPC_PGC_SR(IMX7_PGC_USB_HSIC)),
-};
-
-static const struct regmap_access_table imx7_access_table = {
- .yes_ranges = imx7_yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(imx7_yes_ranges),
-};
-
-static const struct imx_pgc_regs imx7_pgc_regs = {
- .map = GPC_PGC_CPU_MAPPING,
- .pup = GPC_PU_PGC_SW_PUP_REQ,
- .pdn = GPC_PU_PGC_SW_PDN_REQ,
- .hsk = GPC_PU_PWRHSK,
-};
-
-static const struct imx_pgc_domain_data imx7_pgc_domain_data = {
- .domains = imx7_pgc_domains,
- .domains_num = ARRAY_SIZE(imx7_pgc_domains),
- .reg_access_table = &imx7_access_table,
- .pgc_regs = &imx7_pgc_regs,
-};
-
-static const struct imx_pgc_domain imx8m_pgc_domains[] = {
- [IMX8M_POWER_DOMAIN_MIPI] = {
- .genpd = {
- .name = "mipi",
- },
- .bits = {
- .pxx = IMX8M_MIPI_SW_Pxx_REQ,
- .map = IMX8M_MIPI_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_MIPI),
- },
-
- [IMX8M_POWER_DOMAIN_PCIE1] = {
- .genpd = {
- .name = "pcie1",
- },
- .bits = {
- .pxx = IMX8M_PCIE1_SW_Pxx_REQ,
- .map = IMX8M_PCIE1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_PCIE1),
- },
-
- [IMX8M_POWER_DOMAIN_USB_OTG1] = {
- .genpd = {
- .name = "usb-otg1",
- },
- .bits = {
- .pxx = IMX8M_OTG1_SW_Pxx_REQ,
- .map = IMX8M_OTG1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_OTG1),
- },
-
- [IMX8M_POWER_DOMAIN_USB_OTG2] = {
- .genpd = {
- .name = "usb-otg2",
- },
- .bits = {
- .pxx = IMX8M_OTG2_SW_Pxx_REQ,
- .map = IMX8M_OTG2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_OTG2),
- },
-
- [IMX8M_POWER_DOMAIN_DDR1] = {
- .genpd = {
- .name = "ddr1",
- },
- .bits = {
- .pxx = IMX8M_DDR1_SW_Pxx_REQ,
- .map = IMX8M_DDR2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_DDR1),
- },
-
- [IMX8M_POWER_DOMAIN_GPU] = {
- .genpd = {
- .name = "gpu",
- },
- .bits = {
- .pxx = IMX8M_GPU_SW_Pxx_REQ,
- .map = IMX8M_GPU_A53_DOMAIN,
- .hskreq = IMX8M_GPU_HSK_PWRDNREQN,
- .hskack = IMX8M_GPU_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8M_PGC_GPU),
- },
-
- [IMX8M_POWER_DOMAIN_VPU] = {
- .genpd = {
- .name = "vpu",
- },
- .bits = {
- .pxx = IMX8M_VPU_SW_Pxx_REQ,
- .map = IMX8M_VPU_A53_DOMAIN,
- .hskreq = IMX8M_VPU_HSK_PWRDNREQN,
- .hskack = IMX8M_VPU_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8M_PGC_VPU),
- .keep_clocks = true,
- },
-
- [IMX8M_POWER_DOMAIN_DISP] = {
- .genpd = {
- .name = "disp",
- },
- .bits = {
- .pxx = IMX8M_DISP_SW_Pxx_REQ,
- .map = IMX8M_DISP_A53_DOMAIN,
- .hskreq = IMX8M_DISP_HSK_PWRDNREQN,
- .hskack = IMX8M_DISP_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8M_PGC_DISP),
- },
-
- [IMX8M_POWER_DOMAIN_MIPI_CSI1] = {
- .genpd = {
- .name = "mipi-csi1",
- },
- .bits = {
- .pxx = IMX8M_MIPI_CSI1_SW_Pxx_REQ,
- .map = IMX8M_MIPI_CSI1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_MIPI_CSI1),
- },
-
- [IMX8M_POWER_DOMAIN_MIPI_CSI2] = {
- .genpd = {
- .name = "mipi-csi2",
- },
- .bits = {
- .pxx = IMX8M_MIPI_CSI2_SW_Pxx_REQ,
- .map = IMX8M_MIPI_CSI2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_MIPI_CSI2),
- },
-
- [IMX8M_POWER_DOMAIN_PCIE2] = {
- .genpd = {
- .name = "pcie2",
- },
- .bits = {
- .pxx = IMX8M_PCIE2_SW_Pxx_REQ,
- .map = IMX8M_PCIE2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8M_PGC_PCIE2),
- },
-};
-
-static const struct regmap_range imx8m_yes_ranges[] = {
- regmap_reg_range(GPC_LPCR_A_CORE_BSC,
- GPC_PU_PWRHSK),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI),
- GPC_PGC_SR(IMX8M_PGC_MIPI)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE1),
- GPC_PGC_SR(IMX8M_PGC_PCIE1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG1),
- GPC_PGC_SR(IMX8M_PGC_OTG1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_OTG2),
- GPC_PGC_SR(IMX8M_PGC_OTG2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DDR1),
- GPC_PGC_SR(IMX8M_PGC_DDR1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_GPU),
- GPC_PGC_SR(IMX8M_PGC_GPU)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_VPU),
- GPC_PGC_SR(IMX8M_PGC_VPU)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_DISP),
- GPC_PGC_SR(IMX8M_PGC_DISP)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI1),
- GPC_PGC_SR(IMX8M_PGC_MIPI_CSI1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_MIPI_CSI2),
- GPC_PGC_SR(IMX8M_PGC_MIPI_CSI2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8M_PGC_PCIE2),
- GPC_PGC_SR(IMX8M_PGC_PCIE2)),
-};
-
-static const struct regmap_access_table imx8m_access_table = {
- .yes_ranges = imx8m_yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(imx8m_yes_ranges),
-};
-
-static const struct imx_pgc_domain_data imx8m_pgc_domain_data = {
- .domains = imx8m_pgc_domains,
- .domains_num = ARRAY_SIZE(imx8m_pgc_domains),
- .reg_access_table = &imx8m_access_table,
- .pgc_regs = &imx7_pgc_regs,
-};
-
-static const struct imx_pgc_domain imx8mm_pgc_domains[] = {
- [IMX8MM_POWER_DOMAIN_HSIOMIX] = {
- .genpd = {
- .name = "hsiomix",
- },
- .bits = {
- .pxx = 0, /* no power sequence control */
- .map = 0, /* no power sequence control */
- .hskreq = IMX8MM_HSIO_HSK_PWRDNREQN,
- .hskack = IMX8MM_HSIO_HSK_PWRDNACKN,
- },
- .keep_clocks = true,
- },
-
- [IMX8MM_POWER_DOMAIN_PCIE] = {
- .genpd = {
- .name = "pcie",
- },
- .bits = {
- .pxx = IMX8MM_PCIE_SW_Pxx_REQ,
- .map = IMX8MM_PCIE_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_PCIE),
- },
-
- [IMX8MM_POWER_DOMAIN_OTG1] = {
- .genpd = {
- .name = "usb-otg1",
- .flags = GENPD_FLAG_ACTIVE_WAKEUP,
- },
- .bits = {
- .pxx = IMX8MM_OTG1_SW_Pxx_REQ,
- .map = IMX8MM_OTG1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_OTG1),
- },
-
- [IMX8MM_POWER_DOMAIN_OTG2] = {
- .genpd = {
- .name = "usb-otg2",
- .flags = GENPD_FLAG_ACTIVE_WAKEUP,
- },
- .bits = {
- .pxx = IMX8MM_OTG2_SW_Pxx_REQ,
- .map = IMX8MM_OTG2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_OTG2),
- },
-
- [IMX8MM_POWER_DOMAIN_GPUMIX] = {
- .genpd = {
- .name = "gpumix",
- },
- .bits = {
- .pxx = IMX8MM_GPUMIX_SW_Pxx_REQ,
- .map = IMX8MM_GPUMIX_A53_DOMAIN,
- .hskreq = IMX8MM_GPUMIX_HSK_PWRDNREQN,
- .hskack = IMX8MM_GPUMIX_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8MM_PGC_GPUMIX),
- .keep_clocks = true,
- },
-
- [IMX8MM_POWER_DOMAIN_GPU] = {
- .genpd = {
- .name = "gpu",
- },
- .bits = {
- .pxx = IMX8MM_GPU_SW_Pxx_REQ,
- .map = IMX8MM_GPU_A53_DOMAIN,
- .hskreq = IMX8MM_GPU_HSK_PWRDNREQN,
- .hskack = IMX8MM_GPU_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8MM_PGC_GPU2D) | BIT(IMX8MM_PGC_GPU3D),
- },
-
- [IMX8MM_POWER_DOMAIN_VPUMIX] = {
- .genpd = {
- .name = "vpumix",
- },
- .bits = {
- .pxx = IMX8MM_VPUMIX_SW_Pxx_REQ,
- .map = IMX8MM_VPUMIX_A53_DOMAIN,
- .hskreq = IMX8MM_VPUMIX_HSK_PWRDNREQN,
- .hskack = IMX8MM_VPUMIX_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8MM_PGC_VPUMIX),
- .keep_clocks = true,
- },
-
- [IMX8MM_POWER_DOMAIN_VPUG1] = {
- .genpd = {
- .name = "vpu-g1",
- },
- .bits = {
- .pxx = IMX8MM_VPUG1_SW_Pxx_REQ,
- .map = IMX8MM_VPUG1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_VPUG1),
- },
-
- [IMX8MM_POWER_DOMAIN_VPUG2] = {
- .genpd = {
- .name = "vpu-g2",
- },
- .bits = {
- .pxx = IMX8MM_VPUG2_SW_Pxx_REQ,
- .map = IMX8MM_VPUG2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_VPUG2),
- },
-
- [IMX8MM_POWER_DOMAIN_VPUH1] = {
- .genpd = {
- .name = "vpu-h1",
- },
- .bits = {
- .pxx = IMX8MM_VPUH1_SW_Pxx_REQ,
- .map = IMX8MM_VPUH1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_VPUH1),
- .keep_clocks = true,
- },
-
- [IMX8MM_POWER_DOMAIN_DISPMIX] = {
- .genpd = {
- .name = "dispmix",
- },
- .bits = {
- .pxx = IMX8MM_DISPMIX_SW_Pxx_REQ,
- .map = IMX8MM_DISPMIX_A53_DOMAIN,
- .hskreq = IMX8MM_DISPMIX_HSK_PWRDNREQN,
- .hskack = IMX8MM_DISPMIX_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8MM_PGC_DISPMIX),
- .keep_clocks = true,
- },
-
- [IMX8MM_POWER_DOMAIN_MIPI] = {
- .genpd = {
- .name = "mipi",
- },
- .bits = {
- .pxx = IMX8MM_MIPI_SW_Pxx_REQ,
- .map = IMX8MM_MIPI_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MM_PGC_MIPI),
- },
-};
-
-static const struct regmap_range imx8mm_yes_ranges[] = {
- regmap_reg_range(GPC_LPCR_A_CORE_BSC,
- GPC_PU_PWRHSK),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_MIPI),
- GPC_PGC_SR(IMX8MM_PGC_MIPI)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_PCIE),
- GPC_PGC_SR(IMX8MM_PGC_PCIE)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG1),
- GPC_PGC_SR(IMX8MM_PGC_OTG1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_OTG2),
- GPC_PGC_SR(IMX8MM_PGC_OTG2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_DDR1),
- GPC_PGC_SR(IMX8MM_PGC_DDR1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPU2D),
- GPC_PGC_SR(IMX8MM_PGC_GPU2D)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPUMIX),
- GPC_PGC_SR(IMX8MM_PGC_GPUMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUMIX),
- GPC_PGC_SR(IMX8MM_PGC_VPUMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_GPU3D),
- GPC_PGC_SR(IMX8MM_PGC_GPU3D)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_DISPMIX),
- GPC_PGC_SR(IMX8MM_PGC_DISPMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUG1),
- GPC_PGC_SR(IMX8MM_PGC_VPUG1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUG2),
- GPC_PGC_SR(IMX8MM_PGC_VPUG2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MM_PGC_VPUH1),
- GPC_PGC_SR(IMX8MM_PGC_VPUH1)),
-};
-
-static const struct regmap_access_table imx8mm_access_table = {
- .yes_ranges = imx8mm_yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(imx8mm_yes_ranges),
-};
-
-static const struct imx_pgc_domain_data imx8mm_pgc_domain_data = {
- .domains = imx8mm_pgc_domains,
- .domains_num = ARRAY_SIZE(imx8mm_pgc_domains),
- .reg_access_table = &imx8mm_access_table,
- .pgc_regs = &imx7_pgc_regs,
-};
-
-static const struct imx_pgc_domain imx8mp_pgc_domains[] = {
- [IMX8MP_POWER_DOMAIN_MIPI_PHY1] = {
- .genpd = {
- .name = "mipi-phy1",
- },
- .bits = {
- .pxx = IMX8MP_MIPI_PHY1_SW_Pxx_REQ,
- .map = IMX8MP_MIPI_PHY1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_MIPI1),
- },
-
- [IMX8MP_POWER_DOMAIN_PCIE_PHY] = {
- .genpd = {
- .name = "pcie-phy1",
- },
- .bits = {
- .pxx = IMX8MP_PCIE_PHY_SW_Pxx_REQ,
- .map = IMX8MP_PCIE_PHY_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_PCIE),
- },
-
- [IMX8MP_POWER_DOMAIN_USB1_PHY] = {
- .genpd = {
- .name = "usb-otg1",
- },
- .bits = {
- .pxx = IMX8MP_USB1_PHY_Pxx_REQ,
- .map = IMX8MP_USB1_PHY_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_USB1),
- },
-
- [IMX8MP_POWER_DOMAIN_USB2_PHY] = {
- .genpd = {
- .name = "usb-otg2",
- },
- .bits = {
- .pxx = IMX8MP_USB2_PHY_Pxx_REQ,
- .map = IMX8MP_USB2_PHY_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_USB2),
- },
-
- [IMX8MP_POWER_DOMAIN_MLMIX] = {
- .genpd = {
- .name = "mlmix",
- },
- .bits = {
- .pxx = IMX8MP_MLMIX_Pxx_REQ,
- .map = IMX8MP_MLMIX_A53_DOMAIN,
- .hskreq = IMX8MP_MLMIX_PWRDNREQN,
- .hskack = IMX8MP_MLMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_MLMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_AUDIOMIX] = {
- .genpd = {
- .name = "audiomix",
- },
- .bits = {
- .pxx = IMX8MP_AUDIOMIX_Pxx_REQ,
- .map = IMX8MP_AUDIOMIX_A53_DOMAIN,
- .hskreq = IMX8MP_AUDIOMIX_PWRDNREQN,
- .hskack = IMX8MP_AUDIOMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_AUDIOMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_GPU2D] = {
- .genpd = {
- .name = "gpu2d",
- },
- .bits = {
- .pxx = IMX8MP_GPU_2D_Pxx_REQ,
- .map = IMX8MP_GPU2D_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_GPU2D),
- },
-
- [IMX8MP_POWER_DOMAIN_GPUMIX] = {
- .genpd = {
- .name = "gpumix",
- },
- .bits = {
- .pxx = IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ,
- .map = IMX8MP_GPUMIX_A53_DOMAIN,
- .hskreq = IMX8MP_GPUMIX_PWRDNREQN,
- .hskack = IMX8MP_GPUMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_GPUMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_VPUMIX] = {
- .genpd = {
- .name = "vpumix",
- },
- .bits = {
- .pxx = IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ,
- .map = IMX8MP_VPUMIX_A53_DOMAIN,
- .hskreq = IMX8MP_VPUMIX_PWRDNREQN,
- .hskack = IMX8MP_VPUMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_VPUMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_GPU3D] = {
- .genpd = {
- .name = "gpu3d",
- },
- .bits = {
- .pxx = IMX8MP_GPU_3D_Pxx_REQ,
- .map = IMX8MP_GPU3D_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_GPU3D),
- },
-
- [IMX8MP_POWER_DOMAIN_MEDIAMIX] = {
- .genpd = {
- .name = "mediamix",
- },
- .bits = {
- .pxx = IMX8MP_MEDIMIX_Pxx_REQ,
- .map = IMX8MP_MEDIAMIX_A53_DOMAIN,
- .hskreq = IMX8MP_MEDIAMIX_PWRDNREQN,
- .hskack = IMX8MP_MEDIAMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_MEDIAMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_VPU_G1] = {
- .genpd = {
- .name = "vpu-g1",
- },
- .bits = {
- .pxx = IMX8MP_VPU_G1_Pxx_REQ,
- .map = IMX8MP_VPU_G1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_VPU_G1),
- },
-
- [IMX8MP_POWER_DOMAIN_VPU_G2] = {
- .genpd = {
- .name = "vpu-g2",
- },
- .bits = {
- .pxx = IMX8MP_VPU_G2_Pxx_REQ,
- .map = IMX8MP_VPU_G2_A53_DOMAIN
- },
- .pgc = BIT(IMX8MP_PGC_VPU_G2),
- },
-
- [IMX8MP_POWER_DOMAIN_VPU_VC8000E] = {
- .genpd = {
- .name = "vpu-h1",
- },
- .bits = {
- .pxx = IMX8MP_VPU_VC8K_Pxx_REQ,
- .map = IMX8MP_VPU_VC8000E_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_VPU_VC8000E),
- },
-
- [IMX8MP_POWER_DOMAIN_HDMIMIX] = {
- .genpd = {
- .name = "hdmimix",
- },
- .bits = {
- .pxx = IMX8MP_HDMIMIX_Pxx_REQ,
- .map = IMX8MP_HDMIMIX_A53_DOMAIN,
- .hskreq = IMX8MP_HDMIMIX_PWRDNREQN,
- .hskack = IMX8MP_HDMIMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_HDMIMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_HDMI_PHY] = {
- .genpd = {
- .name = "hdmi-phy",
- },
- .bits = {
- .pxx = IMX8MP_HDMI_PHY_Pxx_REQ,
- .map = IMX8MP_HDMI_PHY_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_HDMI),
- },
-
- [IMX8MP_POWER_DOMAIN_MIPI_PHY2] = {
- .genpd = {
- .name = "mipi-phy2",
- },
- .bits = {
- .pxx = IMX8MP_MIPI_PHY2_Pxx_REQ,
- .map = IMX8MP_MIPI_PHY2_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_MIPI2),
- },
-
- [IMX8MP_POWER_DOMAIN_HSIOMIX] = {
- .genpd = {
- .name = "hsiomix",
- },
- .bits = {
- .pxx = IMX8MP_HSIOMIX_Pxx_REQ,
- .map = IMX8MP_HSIOMIX_A53_DOMAIN,
- .hskreq = IMX8MP_HSIOMIX_PWRDNREQN,
- .hskack = IMX8MP_HSIOMIX_PWRDNACKN,
- },
- .pgc = BIT(IMX8MP_PGC_HSIOMIX),
- .keep_clocks = true,
- },
-
- [IMX8MP_POWER_DOMAIN_MEDIAMIX_ISPDWP] = {
- .genpd = {
- .name = "mediamix-isp-dwp",
- },
- .bits = {
- .pxx = IMX8MP_MEDIA_ISP_DWP_Pxx_REQ,
- .map = IMX8MP_MEDIA_ISPDWP_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MP_PGC_MEDIA_ISP_DWP),
- },
-};
-
-static const struct regmap_range imx8mp_yes_ranges[] = {
- regmap_reg_range(GPC_LPCR_A_CORE_BSC,
- IMX8MP_GPC_PGC_CPU_MAPPING),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_NOC),
- GPC_PGC_SR(IMX8MP_PGC_NOC)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI1),
- GPC_PGC_SR(IMX8MP_PGC_MIPI1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_PCIE),
- GPC_PGC_SR(IMX8MP_PGC_PCIE)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB1),
- GPC_PGC_SR(IMX8MP_PGC_USB1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB2),
- GPC_PGC_SR(IMX8MP_PGC_USB2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MLMIX),
- GPC_PGC_SR(IMX8MP_PGC_MLMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_AUDIOMIX),
- GPC_PGC_SR(IMX8MP_PGC_AUDIOMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU2D),
- GPC_PGC_SR(IMX8MP_PGC_GPU2D)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPUMIX),
- GPC_PGC_SR(IMX8MP_PGC_GPUMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPUMIX),
- GPC_PGC_SR(IMX8MP_PGC_VPUMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU3D),
- GPC_PGC_SR(IMX8MP_PGC_GPU3D)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIAMIX),
- GPC_PGC_SR(IMX8MP_PGC_MEDIAMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G1),
- GPC_PGC_SR(IMX8MP_PGC_VPU_G1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G2),
- GPC_PGC_SR(IMX8MP_PGC_VPU_G2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_VC8000E),
- GPC_PGC_SR(IMX8MP_PGC_VPU_VC8000E)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMIMIX),
- GPC_PGC_SR(IMX8MP_PGC_HDMIMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMI),
- GPC_PGC_SR(IMX8MP_PGC_HDMI)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI2),
- GPC_PGC_SR(IMX8MP_PGC_MIPI2)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HSIOMIX),
- GPC_PGC_SR(IMX8MP_PGC_HSIOMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIA_ISP_DWP),
- GPC_PGC_SR(IMX8MP_PGC_MEDIA_ISP_DWP)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_DDRMIX),
- GPC_PGC_SR(IMX8MP_PGC_DDRMIX)),
-};
-
-static const struct regmap_access_table imx8mp_access_table = {
- .yes_ranges = imx8mp_yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(imx8mp_yes_ranges),
-};
-
-static const struct imx_pgc_regs imx8mp_pgc_regs = {
- .map = IMX8MP_GPC_PGC_CPU_MAPPING,
- .pup = IMX8MP_GPC_PU_PGC_SW_PUP_REQ,
- .pdn = IMX8MP_GPC_PU_PGC_SW_PDN_REQ,
- .hsk = IMX8MP_GPC_PU_PWRHSK,
-};
-static const struct imx_pgc_domain_data imx8mp_pgc_domain_data = {
- .domains = imx8mp_pgc_domains,
- .domains_num = ARRAY_SIZE(imx8mp_pgc_domains),
- .reg_access_table = &imx8mp_access_table,
- .pgc_regs = &imx8mp_pgc_regs,
-};
-
-static const struct imx_pgc_domain imx8mn_pgc_domains[] = {
- [IMX8MN_POWER_DOMAIN_HSIOMIX] = {
- .genpd = {
- .name = "hsiomix",
- },
- .bits = {
- .pxx = 0, /* no power sequence control */
- .map = 0, /* no power sequence control */
- .hskreq = IMX8MN_HSIO_HSK_PWRDNREQN,
- .hskack = IMX8MN_HSIO_HSK_PWRDNACKN,
- },
- .keep_clocks = true,
- },
-
- [IMX8MN_POWER_DOMAIN_OTG1] = {
- .genpd = {
- .name = "usb-otg1",
- .flags = GENPD_FLAG_ACTIVE_WAKEUP,
- },
- .bits = {
- .pxx = IMX8MN_OTG1_SW_Pxx_REQ,
- .map = IMX8MN_OTG1_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MN_PGC_OTG1),
- },
-
- [IMX8MN_POWER_DOMAIN_GPUMIX] = {
- .genpd = {
- .name = "gpumix",
- },
- .bits = {
- .pxx = IMX8MN_GPUMIX_SW_Pxx_REQ,
- .map = IMX8MN_GPUMIX_A53_DOMAIN,
- .hskreq = IMX8MN_GPUMIX_HSK_PWRDNREQN,
- .hskack = IMX8MN_GPUMIX_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8MN_PGC_GPUMIX),
- .keep_clocks = true,
- },
-
- [IMX8MN_POWER_DOMAIN_DISPMIX] = {
- .genpd = {
- .name = "dispmix",
- },
- .bits = {
- .pxx = IMX8MN_DISPMIX_SW_Pxx_REQ,
- .map = IMX8MN_DISPMIX_A53_DOMAIN,
- .hskreq = IMX8MN_DISPMIX_HSK_PWRDNREQN,
- .hskack = IMX8MN_DISPMIX_HSK_PWRDNACKN,
- },
- .pgc = BIT(IMX8MN_PGC_DISPMIX),
- .keep_clocks = true,
- },
-
- [IMX8MN_POWER_DOMAIN_MIPI] = {
- .genpd = {
- .name = "mipi",
- },
- .bits = {
- .pxx = IMX8MN_MIPI_SW_Pxx_REQ,
- .map = IMX8MN_MIPI_A53_DOMAIN,
- },
- .pgc = BIT(IMX8MN_PGC_MIPI),
- },
-};
-
-static const struct regmap_range imx8mn_yes_ranges[] = {
- regmap_reg_range(GPC_LPCR_A_CORE_BSC,
- GPC_PU_PWRHSK),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_MIPI),
- GPC_PGC_SR(IMX8MN_PGC_MIPI)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_OTG1),
- GPC_PGC_SR(IMX8MN_PGC_OTG1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_DDR1),
- GPC_PGC_SR(IMX8MN_PGC_DDR1)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_GPUMIX),
- GPC_PGC_SR(IMX8MN_PGC_GPUMIX)),
- regmap_reg_range(GPC_PGC_CTRL(IMX8MN_PGC_DISPMIX),
- GPC_PGC_SR(IMX8MN_PGC_DISPMIX)),
-};
-
-static const struct regmap_access_table imx8mn_access_table = {
- .yes_ranges = imx8mn_yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(imx8mn_yes_ranges),
-};
-
-static const struct imx_pgc_domain_data imx8mn_pgc_domain_data = {
- .domains = imx8mn_pgc_domains,
- .domains_num = ARRAY_SIZE(imx8mn_pgc_domains),
- .reg_access_table = &imx8mn_access_table,
- .pgc_regs = &imx7_pgc_regs,
-};
-
-static int imx_pgc_domain_probe(struct platform_device *pdev)
-{
- struct imx_pgc_domain *domain = pdev->dev.platform_data;
- int ret;
-
- domain->dev = &pdev->dev;
-
- domain->regulator = devm_regulator_get_optional(domain->dev, "power");
- if (IS_ERR(domain->regulator)) {
- if (PTR_ERR(domain->regulator) != -ENODEV)
- return dev_err_probe(domain->dev, PTR_ERR(domain->regulator),
- "Failed to get domain's regulator\n");
- } else if (domain->voltage) {
- regulator_set_voltage(domain->regulator,
- domain->voltage, domain->voltage);
- }
-
- domain->num_clks = devm_clk_bulk_get_all(domain->dev, &domain->clks);
- if (domain->num_clks < 0)
- return dev_err_probe(domain->dev, domain->num_clks,
- "Failed to get domain's clocks\n");
-
- domain->reset = devm_reset_control_array_get_optional_exclusive(domain->dev);
- if (IS_ERR(domain->reset))
- return dev_err_probe(domain->dev, PTR_ERR(domain->reset),
- "Failed to get domain's resets\n");
-
- pm_runtime_enable(domain->dev);
-
- if (domain->bits.map)
- regmap_update_bits(domain->regmap, domain->regs->map,
- domain->bits.map, domain->bits.map);
-
- ret = pm_genpd_init(&domain->genpd, NULL, true);
- if (ret) {
- dev_err(domain->dev, "Failed to init power domain\n");
- goto out_domain_unmap;
- }
-
- if (IS_ENABLED(CONFIG_LOCKDEP) &&
- of_property_read_bool(domain->dev->of_node, "power-domains"))
- lockdep_set_subclass(&domain->genpd.mlock, 1);
-
- ret = of_genpd_add_provider_simple(domain->dev->of_node,
- &domain->genpd);
- if (ret) {
- dev_err(domain->dev, "Failed to add genpd provider\n");
- goto out_genpd_remove;
- }
-
- return 0;
-
-out_genpd_remove:
- pm_genpd_remove(&domain->genpd);
-out_domain_unmap:
- if (domain->bits.map)
- regmap_update_bits(domain->regmap, domain->regs->map,
- domain->bits.map, 0);
- pm_runtime_disable(domain->dev);
-
- return ret;
-}
-
-static int imx_pgc_domain_remove(struct platform_device *pdev)
-{
- struct imx_pgc_domain *domain = pdev->dev.platform_data;
-
- of_genpd_del_provider(domain->dev->of_node);
- pm_genpd_remove(&domain->genpd);
-
- if (domain->bits.map)
- regmap_update_bits(domain->regmap, domain->regs->map,
- domain->bits.map, 0);
-
- pm_runtime_disable(domain->dev);
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int imx_pgc_domain_suspend(struct device *dev)
-{
- int ret;
-
- /*
- * This may look strange, but is done so the generic PM_SLEEP code
- * can power down our domain and more importantly power it up again
- * after resume, without tripping over our usage of runtime PM to
- * power up/down the nested domains.
- */
- ret = pm_runtime_get_sync(dev);
- if (ret < 0) {
- pm_runtime_put_noidle(dev);
- return ret;
- }
-
- return 0;
-}
-
-static int imx_pgc_domain_resume(struct device *dev)
-{
- return pm_runtime_put(dev);
-}
-#endif
-
-static const struct dev_pm_ops imx_pgc_domain_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(imx_pgc_domain_suspend, imx_pgc_domain_resume)
-};
-
-static const struct platform_device_id imx_pgc_domain_id[] = {
- { "imx-pgc-domain", },
- { },
-};
-
-static struct platform_driver imx_pgc_domain_driver = {
- .driver = {
- .name = "imx-pgc",
- .pm = &imx_pgc_domain_pm_ops,
- },
- .probe = imx_pgc_domain_probe,
- .remove = imx_pgc_domain_remove,
- .id_table = imx_pgc_domain_id,
-};
-builtin_platform_driver(imx_pgc_domain_driver)
-
-static int imx_gpcv2_probe(struct platform_device *pdev)
-{
- const struct imx_pgc_domain_data *domain_data =
- of_device_get_match_data(&pdev->dev);
-
- struct regmap_config regmap_config = {
- .reg_bits = 32,
- .val_bits = 32,
- .reg_stride = 4,
- .rd_table = domain_data->reg_access_table,
- .wr_table = domain_data->reg_access_table,
- .max_register = SZ_4K,
- };
- struct device *dev = &pdev->dev;
- struct device_node *pgc_np, *np;
- struct regmap *regmap;
- void __iomem *base;
- int ret;
-
- pgc_np = of_get_child_by_name(dev->of_node, "pgc");
- if (!pgc_np) {
- dev_err(dev, "No power domains specified in DT\n");
- return -EINVAL;
- }
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- regmap = devm_regmap_init_mmio(dev, base, ®map_config);
- if (IS_ERR(regmap)) {
- ret = PTR_ERR(regmap);
- dev_err(dev, "failed to init regmap (%d)\n", ret);
- return ret;
- }
-
- for_each_child_of_node(pgc_np, np) {
- struct platform_device *pd_pdev;
- struct imx_pgc_domain *domain;
- u32 domain_index;
-
- if (!of_device_is_available(np))
- continue;
-
- ret = of_property_read_u32(np, "reg", &domain_index);
- if (ret) {
- dev_err(dev, "Failed to read 'reg' property\n");
- of_node_put(np);
- return ret;
- }
-
- if (domain_index >= domain_data->domains_num) {
- dev_warn(dev,
- "Domain index %d is out of bounds\n",
- domain_index);
- continue;
- }
-
- pd_pdev = platform_device_alloc("imx-pgc-domain",
- domain_index);
- if (!pd_pdev) {
- dev_err(dev, "Failed to allocate platform device\n");
- of_node_put(np);
- return -ENOMEM;
- }
-
- ret = platform_device_add_data(pd_pdev,
- &domain_data->domains[domain_index],
- sizeof(domain_data->domains[domain_index]));
- if (ret) {
- platform_device_put(pd_pdev);
- of_node_put(np);
- return ret;
- }
-
- domain = pd_pdev->dev.platform_data;
- domain->regmap = regmap;
- domain->regs = domain_data->pgc_regs;
-
- domain->genpd.power_on = imx_pgc_power_up;
- domain->genpd.power_off = imx_pgc_power_down;
-
- pd_pdev->dev.parent = dev;
- device_set_node(&pd_pdev->dev, of_fwnode_handle(np));
-
- ret = platform_device_add(pd_pdev);
- if (ret) {
- platform_device_put(pd_pdev);
- of_node_put(np);
- return ret;
- }
- }
-
- return 0;
-}
-
-static const struct of_device_id imx_gpcv2_dt_ids[] = {
- { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, },
- { .compatible = "fsl,imx8mm-gpc", .data = &imx8mm_pgc_domain_data, },
- { .compatible = "fsl,imx8mn-gpc", .data = &imx8mn_pgc_domain_data, },
- { .compatible = "fsl,imx8mp-gpc", .data = &imx8mp_pgc_domain_data, },
- { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, },
- { }
-};
-
-static struct platform_driver imx_gpc_driver = {
- .driver = {
- .name = "imx-gpcv2",
- .of_match_table = imx_gpcv2_dt_ids,
- },
- .probe = imx_gpcv2_probe,
-};
-builtin_platform_driver(imx_gpc_driver)
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-
-/*
- * Copyright 2021 Pengutronix, Lucas Stach <kernel@pengutronix.de>
- */
-
-#include <linux/bitfield.h>
-#include <linux/device.h>
-#include <linux/interconnect.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-#include <linux/clk.h>
-
-#include <dt-bindings/power/imx8mm-power.h>
-#include <dt-bindings/power/imx8mn-power.h>
-#include <dt-bindings/power/imx8mp-power.h>
-#include <dt-bindings/power/imx8mq-power.h>
-
-#define BLK_SFT_RSTN 0x0
-#define BLK_CLK_EN 0x4
-#define BLK_MIPI_RESET_DIV 0x8 /* Mini/Nano/Plus DISPLAY_BLK_CTRL only */
-
-struct imx8m_blk_ctrl_domain;
-
-struct imx8m_blk_ctrl {
- struct device *dev;
- struct notifier_block power_nb;
- struct device *bus_power_dev;
- struct regmap *regmap;
- struct imx8m_blk_ctrl_domain *domains;
- struct genpd_onecell_data onecell_data;
-};
-
-struct imx8m_blk_ctrl_domain_data {
- const char *name;
- const char * const *clk_names;
- const char * const *path_names;
- const char *gpc_name;
- int num_clks;
- int num_paths;
- u32 rst_mask;
- u32 clk_mask;
-
- /*
- * i.MX8M Mini, Nano and Plus have a third DISPLAY_BLK_CTRL register
- * which is used to control the reset for the MIPI Phy.
- * Since it's only present in certain circumstances,
- * an if-statement should be used before setting and clearing this
- * register.
- */
- u32 mipi_phy_rst_mask;
-};
-
-#define DOMAIN_MAX_CLKS 4
-#define DOMAIN_MAX_PATHS 4
-
-struct imx8m_blk_ctrl_domain {
- struct generic_pm_domain genpd;
- const struct imx8m_blk_ctrl_domain_data *data;
- struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
- struct icc_bulk_data paths[DOMAIN_MAX_PATHS];
- struct device *power_dev;
- struct imx8m_blk_ctrl *bc;
- int num_paths;
-};
-
-struct imx8m_blk_ctrl_data {
- int max_reg;
- notifier_fn_t power_notifier_fn;
- const struct imx8m_blk_ctrl_domain_data *domains;
- int num_domains;
-};
-
-static inline struct imx8m_blk_ctrl_domain *
-to_imx8m_blk_ctrl_domain(struct generic_pm_domain *genpd)
-{
- return container_of(genpd, struct imx8m_blk_ctrl_domain, genpd);
-}
-
-static int imx8m_blk_ctrl_power_on(struct generic_pm_domain *genpd)
-{
- struct imx8m_blk_ctrl_domain *domain = to_imx8m_blk_ctrl_domain(genpd);
- const struct imx8m_blk_ctrl_domain_data *data = domain->data;
- struct imx8m_blk_ctrl *bc = domain->bc;
- int ret;
-
- /* make sure bus domain is awake */
- ret = pm_runtime_get_sync(bc->bus_power_dev);
- if (ret < 0) {
- pm_runtime_put_noidle(bc->bus_power_dev);
- dev_err(bc->dev, "failed to power up bus domain\n");
- return ret;
- }
-
- /* put devices into reset */
- regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
- if (data->mipi_phy_rst_mask)
- regmap_clear_bits(bc->regmap, BLK_MIPI_RESET_DIV, data->mipi_phy_rst_mask);
-
- /* enable upstream and blk-ctrl clocks to allow reset to propagate */
- ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
- if (ret) {
- dev_err(bc->dev, "failed to enable clocks\n");
- goto bus_put;
- }
- regmap_set_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
-
- /* power up upstream GPC domain */
- ret = pm_runtime_get_sync(domain->power_dev);
- if (ret < 0) {
- dev_err(bc->dev, "failed to power up peripheral domain\n");
- goto clk_disable;
- }
-
- /* wait for reset to propagate */
- udelay(5);
-
- /* release reset */
- regmap_set_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
- if (data->mipi_phy_rst_mask)
- regmap_set_bits(bc->regmap, BLK_MIPI_RESET_DIV, data->mipi_phy_rst_mask);
-
- ret = icc_bulk_set_bw(domain->num_paths, domain->paths);
- if (ret)
- dev_err(bc->dev, "failed to set icc bw\n");
-
- /* disable upstream clocks */
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-
- return 0;
-
-clk_disable:
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-bus_put:
- pm_runtime_put(bc->bus_power_dev);
-
- return ret;
-}
-
-static int imx8m_blk_ctrl_power_off(struct generic_pm_domain *genpd)
-{
- struct imx8m_blk_ctrl_domain *domain = to_imx8m_blk_ctrl_domain(genpd);
- const struct imx8m_blk_ctrl_domain_data *data = domain->data;
- struct imx8m_blk_ctrl *bc = domain->bc;
-
- /* put devices into reset and disable clocks */
- if (data->mipi_phy_rst_mask)
- regmap_clear_bits(bc->regmap, BLK_MIPI_RESET_DIV, data->mipi_phy_rst_mask);
-
- regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
- regmap_clear_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
-
- /* power down upstream GPC domain */
- pm_runtime_put(domain->power_dev);
-
- /* allow bus domain to suspend */
- pm_runtime_put(bc->bus_power_dev);
-
- return 0;
-}
-
-static struct lock_class_key blk_ctrl_genpd_lock_class;
-
-static int imx8m_blk_ctrl_probe(struct platform_device *pdev)
-{
- const struct imx8m_blk_ctrl_data *bc_data;
- struct device *dev = &pdev->dev;
- struct imx8m_blk_ctrl *bc;
- void __iomem *base;
- int i, ret;
-
- struct regmap_config regmap_config = {
- .reg_bits = 32,
- .val_bits = 32,
- .reg_stride = 4,
- };
-
- bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
- if (!bc)
- return -ENOMEM;
-
- bc->dev = dev;
-
- bc_data = of_device_get_match_data(dev);
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- regmap_config.max_register = bc_data->max_reg;
- bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config);
- if (IS_ERR(bc->regmap))
- return dev_err_probe(dev, PTR_ERR(bc->regmap),
- "failed to init regmap\n");
-
- bc->domains = devm_kcalloc(dev, bc_data->num_domains,
- sizeof(struct imx8m_blk_ctrl_domain),
- GFP_KERNEL);
- if (!bc->domains)
- return -ENOMEM;
-
- bc->onecell_data.num_domains = bc_data->num_domains;
- bc->onecell_data.domains =
- devm_kcalloc(dev, bc_data->num_domains,
- sizeof(struct generic_pm_domain *), GFP_KERNEL);
- if (!bc->onecell_data.domains)
- return -ENOMEM;
-
- bc->bus_power_dev = dev_pm_domain_attach_by_name(dev, "bus");
- if (IS_ERR(bc->bus_power_dev)) {
- if (PTR_ERR(bc->bus_power_dev) == -ENODEV)
- return dev_err_probe(dev, -EPROBE_DEFER,
- "failed to attach power domain \"bus\"\n");
- else
- return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev),
- "failed to attach power domain \"bus\"\n");
- }
-
- for (i = 0; i < bc_data->num_domains; i++) {
- const struct imx8m_blk_ctrl_domain_data *data = &bc_data->domains[i];
- struct imx8m_blk_ctrl_domain *domain = &bc->domains[i];
- int j;
-
- domain->data = data;
- domain->num_paths = data->num_paths;
-
- for (j = 0; j < data->num_clks; j++)
- domain->clks[j].id = data->clk_names[j];
-
- for (j = 0; j < data->num_paths; j++) {
- domain->paths[j].name = data->path_names[j];
- /* Fake value for now, just let ICC could configure NoC mode/priority */
- domain->paths[j].avg_bw = 1;
- domain->paths[j].peak_bw = 1;
- }
-
- ret = devm_of_icc_bulk_get(dev, data->num_paths, domain->paths);
- if (ret) {
- if (ret != -EPROBE_DEFER) {
- dev_warn_once(dev, "Could not get interconnect paths, NoC will stay unconfigured!\n");
- domain->num_paths = 0;
- } else {
- dev_err_probe(dev, ret, "failed to get noc entries\n");
- goto cleanup_pds;
- }
- }
-
- ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
- if (ret) {
- dev_err_probe(dev, ret, "failed to get clock\n");
- goto cleanup_pds;
- }
-
- domain->power_dev =
- dev_pm_domain_attach_by_name(dev, data->gpc_name);
- if (IS_ERR(domain->power_dev)) {
- dev_err_probe(dev, PTR_ERR(domain->power_dev),
- "failed to attach power domain \"%s\"\n",
- data->gpc_name);
- ret = PTR_ERR(domain->power_dev);
- goto cleanup_pds;
- }
-
- domain->genpd.name = data->name;
- domain->genpd.power_on = imx8m_blk_ctrl_power_on;
- domain->genpd.power_off = imx8m_blk_ctrl_power_off;
- domain->bc = bc;
-
- ret = pm_genpd_init(&domain->genpd, NULL, true);
- if (ret) {
- dev_err_probe(dev, ret,
- "failed to init power domain \"%s\"\n",
- data->gpc_name);
- dev_pm_domain_detach(domain->power_dev, true);
- goto cleanup_pds;
- }
-
- /*
- * We use runtime PM to trigger power on/off of the upstream GPC
- * domain, as a strict hierarchical parent/child power domain
- * setup doesn't allow us to meet the sequencing requirements.
- * This means we have nested locking of genpd locks, without the
- * nesting being visible at the genpd level, so we need a
- * separate lock class to make lockdep aware of the fact that
- * this are separate domain locks that can be nested without a
- * self-deadlock.
- */
- lockdep_set_class(&domain->genpd.mlock,
- &blk_ctrl_genpd_lock_class);
-
- bc->onecell_data.domains[i] = &domain->genpd;
- }
-
- ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data);
- if (ret) {
- dev_err_probe(dev, ret, "failed to add power domain provider\n");
- goto cleanup_pds;
- }
-
- bc->power_nb.notifier_call = bc_data->power_notifier_fn;
- ret = dev_pm_genpd_add_notifier(bc->bus_power_dev, &bc->power_nb);
- if (ret) {
- dev_err_probe(dev, ret, "failed to add power notifier\n");
- goto cleanup_provider;
- }
-
- dev_set_drvdata(dev, bc);
-
- ret = devm_of_platform_populate(dev);
- if (ret)
- goto cleanup_provider;
-
- return 0;
-
-cleanup_provider:
- of_genpd_del_provider(dev->of_node);
-cleanup_pds:
- for (i--; i >= 0; i--) {
- pm_genpd_remove(&bc->domains[i].genpd);
- dev_pm_domain_detach(bc->domains[i].power_dev, true);
- }
-
- dev_pm_domain_detach(bc->bus_power_dev, true);
-
- return ret;
-}
-
-static int imx8m_blk_ctrl_remove(struct platform_device *pdev)
-{
- struct imx8m_blk_ctrl *bc = dev_get_drvdata(&pdev->dev);
- int i;
-
- of_genpd_del_provider(pdev->dev.of_node);
-
- for (i = 0; bc->onecell_data.num_domains; i++) {
- struct imx8m_blk_ctrl_domain *domain = &bc->domains[i];
-
- pm_genpd_remove(&domain->genpd);
- dev_pm_domain_detach(domain->power_dev, true);
- }
-
- dev_pm_genpd_remove_notifier(bc->bus_power_dev);
-
- dev_pm_domain_detach(bc->bus_power_dev, true);
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int imx8m_blk_ctrl_suspend(struct device *dev)
-{
- struct imx8m_blk_ctrl *bc = dev_get_drvdata(dev);
- int ret, i;
-
- /*
- * This may look strange, but is done so the generic PM_SLEEP code
- * can power down our domains and more importantly power them up again
- * after resume, without tripping over our usage of runtime PM to
- * control the upstream GPC domains. Things happen in the right order
- * in the system suspend/resume paths due to the device parent/child
- * hierarchy.
- */
- ret = pm_runtime_get_sync(bc->bus_power_dev);
- if (ret < 0) {
- pm_runtime_put_noidle(bc->bus_power_dev);
- return ret;
- }
-
- for (i = 0; i < bc->onecell_data.num_domains; i++) {
- struct imx8m_blk_ctrl_domain *domain = &bc->domains[i];
-
- ret = pm_runtime_get_sync(domain->power_dev);
- if (ret < 0) {
- pm_runtime_put_noidle(domain->power_dev);
- goto out_fail;
- }
- }
-
- return 0;
-
-out_fail:
- for (i--; i >= 0; i--)
- pm_runtime_put(bc->domains[i].power_dev);
-
- pm_runtime_put(bc->bus_power_dev);
-
- return ret;
-}
-
-static int imx8m_blk_ctrl_resume(struct device *dev)
-{
- struct imx8m_blk_ctrl *bc = dev_get_drvdata(dev);
- int i;
-
- for (i = 0; i < bc->onecell_data.num_domains; i++)
- pm_runtime_put(bc->domains[i].power_dev);
-
- pm_runtime_put(bc->bus_power_dev);
-
- return 0;
-}
-#endif
-
-static const struct dev_pm_ops imx8m_blk_ctrl_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(imx8m_blk_ctrl_suspend, imx8m_blk_ctrl_resume)
-};
-
-static int imx8mm_vpu_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
- power_nb);
-
- if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
- return NOTIFY_OK;
-
- /*
- * The ADB in the VPUMIX domain has no separate reset and clock
- * enable bits, but is ungated together with the VPU clocks. To
- * allow the handshake with the GPC to progress we put the VPUs
- * in reset and ungate the clocks.
- */
- regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, BIT(0) | BIT(1) | BIT(2));
- regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(0) | BIT(1) | BIT(2));
-
- if (action == GENPD_NOTIFY_ON) {
- /*
- * On power up we have no software backchannel to the GPC to
- * wait for the ADB handshake to happen, so we just delay for a
- * bit. On power down the GPC driver waits for the handshake.
- */
- udelay(5);
-
- /* set "fuse" bits to enable the VPUs */
- regmap_set_bits(bc->regmap, 0x8, 0xffffffff);
- regmap_set_bits(bc->regmap, 0xc, 0xffffffff);
- regmap_set_bits(bc->regmap, 0x10, 0xffffffff);
- regmap_set_bits(bc->regmap, 0x14, 0xffffffff);
- }
-
- return NOTIFY_OK;
-}
-
-static const struct imx8m_blk_ctrl_domain_data imx8mm_vpu_blk_ctl_domain_data[] = {
- [IMX8MM_VPUBLK_PD_G1] = {
- .name = "vpublk-g1",
- .clk_names = (const char *[]){ "g1", },
- .num_clks = 1,
- .gpc_name = "g1",
- .rst_mask = BIT(1),
- .clk_mask = BIT(1),
- },
- [IMX8MM_VPUBLK_PD_G2] = {
- .name = "vpublk-g2",
- .clk_names = (const char *[]){ "g2", },
- .num_clks = 1,
- .gpc_name = "g2",
- .rst_mask = BIT(0),
- .clk_mask = BIT(0),
- },
- [IMX8MM_VPUBLK_PD_H1] = {
- .name = "vpublk-h1",
- .clk_names = (const char *[]){ "h1", },
- .num_clks = 1,
- .gpc_name = "h1",
- .rst_mask = BIT(2),
- .clk_mask = BIT(2),
- },
-};
-
-static const struct imx8m_blk_ctrl_data imx8mm_vpu_blk_ctl_dev_data = {
- .max_reg = 0x18,
- .power_notifier_fn = imx8mm_vpu_power_notifier,
- .domains = imx8mm_vpu_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx8mm_vpu_blk_ctl_domain_data),
-};
-
-static const struct imx8m_blk_ctrl_domain_data imx8mp_vpu_blk_ctl_domain_data[] = {
- [IMX8MP_VPUBLK_PD_G1] = {
- .name = "vpublk-g1",
- .clk_names = (const char *[]){ "g1", },
- .num_clks = 1,
- .gpc_name = "g1",
- .rst_mask = BIT(1),
- .clk_mask = BIT(1),
- .path_names = (const char *[]){"g1"},
- .num_paths = 1,
- },
- [IMX8MP_VPUBLK_PD_G2] = {
- .name = "vpublk-g2",
- .clk_names = (const char *[]){ "g2", },
- .num_clks = 1,
- .gpc_name = "g2",
- .rst_mask = BIT(0),
- .clk_mask = BIT(0),
- .path_names = (const char *[]){"g2"},
- .num_paths = 1,
- },
- [IMX8MP_VPUBLK_PD_VC8000E] = {
- .name = "vpublk-vc8000e",
- .clk_names = (const char *[]){ "vc8000e", },
- .num_clks = 1,
- .gpc_name = "vc8000e",
- .rst_mask = BIT(2),
- .clk_mask = BIT(2),
- .path_names = (const char *[]){"vc8000e"},
- .num_paths = 1,
- },
-};
-
-static const struct imx8m_blk_ctrl_data imx8mp_vpu_blk_ctl_dev_data = {
- .max_reg = 0x18,
- .power_notifier_fn = imx8mm_vpu_power_notifier,
- .domains = imx8mp_vpu_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx8mp_vpu_blk_ctl_domain_data),
-};
-
-static int imx8mm_disp_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
- power_nb);
-
- if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
- return NOTIFY_OK;
-
- /* Enable bus clock and deassert bus reset */
- regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(12));
- regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(6));
-
- /*
- * On power up we have no software backchannel to the GPC to
- * wait for the ADB handshake to happen, so we just delay for a
- * bit. On power down the GPC driver waits for the handshake.
- */
- if (action == GENPD_NOTIFY_ON)
- udelay(5);
-
-
- return NOTIFY_OK;
-}
-
-static const struct imx8m_blk_ctrl_domain_data imx8mm_disp_blk_ctl_domain_data[] = {
- [IMX8MM_DISPBLK_PD_CSI_BRIDGE] = {
- .name = "dispblk-csi-bridge",
- .clk_names = (const char *[]){ "csi-bridge-axi", "csi-bridge-apb",
- "csi-bridge-core", },
- .num_clks = 3,
- .gpc_name = "csi-bridge",
- .rst_mask = BIT(0) | BIT(1) | BIT(2),
- .clk_mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5),
- },
- [IMX8MM_DISPBLK_PD_LCDIF] = {
- .name = "dispblk-lcdif",
- .clk_names = (const char *[]){ "lcdif-axi", "lcdif-apb", "lcdif-pix", },
- .num_clks = 3,
- .gpc_name = "lcdif",
- .clk_mask = BIT(6) | BIT(7),
- },
- [IMX8MM_DISPBLK_PD_MIPI_DSI] = {
- .name = "dispblk-mipi-dsi",
- .clk_names = (const char *[]){ "dsi-pclk", "dsi-ref", },
- .num_clks = 2,
- .gpc_name = "mipi-dsi",
- .rst_mask = BIT(5),
- .clk_mask = BIT(8) | BIT(9),
- .mipi_phy_rst_mask = BIT(17),
- },
- [IMX8MM_DISPBLK_PD_MIPI_CSI] = {
- .name = "dispblk-mipi-csi",
- .clk_names = (const char *[]){ "csi-aclk", "csi-pclk" },
- .num_clks = 2,
- .gpc_name = "mipi-csi",
- .rst_mask = BIT(3) | BIT(4),
- .clk_mask = BIT(10) | BIT(11),
- .mipi_phy_rst_mask = BIT(16),
- },
-};
-
-static const struct imx8m_blk_ctrl_data imx8mm_disp_blk_ctl_dev_data = {
- .max_reg = 0x2c,
- .power_notifier_fn = imx8mm_disp_power_notifier,
- .domains = imx8mm_disp_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx8mm_disp_blk_ctl_domain_data),
-};
-
-
-static int imx8mn_disp_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
- power_nb);
-
- if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
- return NOTIFY_OK;
-
- /* Enable bus clock and deassert bus reset */
- regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(8));
- regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(8));
-
- /*
- * On power up we have no software backchannel to the GPC to
- * wait for the ADB handshake to happen, so we just delay for a
- * bit. On power down the GPC driver waits for the handshake.
- */
- if (action == GENPD_NOTIFY_ON)
- udelay(5);
-
-
- return NOTIFY_OK;
-}
-
-static const struct imx8m_blk_ctrl_domain_data imx8mn_disp_blk_ctl_domain_data[] = {
- [IMX8MN_DISPBLK_PD_MIPI_DSI] = {
- .name = "dispblk-mipi-dsi",
- .clk_names = (const char *[]){ "dsi-pclk", "dsi-ref", },
- .num_clks = 2,
- .gpc_name = "mipi-dsi",
- .rst_mask = BIT(0) | BIT(1),
- .clk_mask = BIT(0) | BIT(1),
- .mipi_phy_rst_mask = BIT(17),
- },
- [IMX8MN_DISPBLK_PD_MIPI_CSI] = {
- .name = "dispblk-mipi-csi",
- .clk_names = (const char *[]){ "csi-aclk", "csi-pclk" },
- .num_clks = 2,
- .gpc_name = "mipi-csi",
- .rst_mask = BIT(2) | BIT(3),
- .clk_mask = BIT(2) | BIT(3),
- .mipi_phy_rst_mask = BIT(16),
- },
- [IMX8MN_DISPBLK_PD_LCDIF] = {
- .name = "dispblk-lcdif",
- .clk_names = (const char *[]){ "lcdif-axi", "lcdif-apb", "lcdif-pix", },
- .num_clks = 3,
- .gpc_name = "lcdif",
- .rst_mask = BIT(4) | BIT(5),
- .clk_mask = BIT(4) | BIT(5),
- },
- [IMX8MN_DISPBLK_PD_ISI] = {
- .name = "dispblk-isi",
- .clk_names = (const char *[]){ "disp_axi", "disp_apb", "disp_axi_root",
- "disp_apb_root"},
- .num_clks = 4,
- .gpc_name = "isi",
- .rst_mask = BIT(6) | BIT(7),
- .clk_mask = BIT(6) | BIT(7),
- },
-};
-
-static const struct imx8m_blk_ctrl_data imx8mn_disp_blk_ctl_dev_data = {
- .max_reg = 0x84,
- .power_notifier_fn = imx8mn_disp_power_notifier,
- .domains = imx8mn_disp_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx8mn_disp_blk_ctl_domain_data),
-};
-
-#define LCDIF_ARCACHE_CTRL 0x4c
-#define LCDIF_1_RD_HURRY GENMASK(15, 13)
-#define LCDIF_0_RD_HURRY GENMASK(12, 10)
-
-static int imx8mp_media_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
- power_nb);
-
- if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
- return NOTIFY_OK;
-
- /* Enable bus clock and deassert bus reset */
- regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(8));
- regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(8));
-
- if (action == GENPD_NOTIFY_ON) {
- /*
- * On power up we have no software backchannel to the GPC to
- * wait for the ADB handshake to happen, so we just delay for a
- * bit. On power down the GPC driver waits for the handshake.
- */
- udelay(5);
-
- /*
- * Set panic read hurry level for both LCDIF interfaces to
- * maximum priority to minimize chances of display FIFO
- * underflow.
- */
- regmap_set_bits(bc->regmap, LCDIF_ARCACHE_CTRL,
- FIELD_PREP(LCDIF_1_RD_HURRY, 7) |
- FIELD_PREP(LCDIF_0_RD_HURRY, 7));
- }
-
- return NOTIFY_OK;
-}
-
-/*
- * From i.MX 8M Plus Applications Processor Reference Manual, Rev. 1,
- * section 13.2.2, 13.2.3
- * isp-ahb and dwe are not in Figure 13-5. Media BLK_CTRL Clocks
- */
-static const struct imx8m_blk_ctrl_domain_data imx8mp_media_blk_ctl_domain_data[] = {
- [IMX8MP_MEDIABLK_PD_MIPI_DSI_1] = {
- .name = "mediablk-mipi-dsi-1",
- .clk_names = (const char *[]){ "apb", "phy", },
- .num_clks = 2,
- .gpc_name = "mipi-dsi1",
- .rst_mask = BIT(0) | BIT(1),
- .clk_mask = BIT(0) | BIT(1),
- .mipi_phy_rst_mask = BIT(17),
- },
- [IMX8MP_MEDIABLK_PD_MIPI_CSI2_1] = {
- .name = "mediablk-mipi-csi2-1",
- .clk_names = (const char *[]){ "apb", "cam1" },
- .num_clks = 2,
- .gpc_name = "mipi-csi1",
- .rst_mask = BIT(2) | BIT(3),
- .clk_mask = BIT(2) | BIT(3),
- .mipi_phy_rst_mask = BIT(16),
- },
- [IMX8MP_MEDIABLK_PD_LCDIF_1] = {
- .name = "mediablk-lcdif-1",
- .clk_names = (const char *[]){ "disp1", "apb", "axi", },
- .num_clks = 3,
- .gpc_name = "lcdif1",
- .rst_mask = BIT(4) | BIT(5) | BIT(23),
- .clk_mask = BIT(4) | BIT(5) | BIT(23),
- .path_names = (const char *[]){"lcdif-rd", "lcdif-wr"},
- .num_paths = 2,
- },
- [IMX8MP_MEDIABLK_PD_ISI] = {
- .name = "mediablk-isi",
- .clk_names = (const char *[]){ "axi", "apb" },
- .num_clks = 2,
- .gpc_name = "isi",
- .rst_mask = BIT(6) | BIT(7),
- .clk_mask = BIT(6) | BIT(7),
- .path_names = (const char *[]){"isi0", "isi1", "isi2"},
- .num_paths = 3,
- },
- [IMX8MP_MEDIABLK_PD_MIPI_CSI2_2] = {
- .name = "mediablk-mipi-csi2-2",
- .clk_names = (const char *[]){ "apb", "cam2" },
- .num_clks = 2,
- .gpc_name = "mipi-csi2",
- .rst_mask = BIT(9) | BIT(10),
- .clk_mask = BIT(9) | BIT(10),
- .mipi_phy_rst_mask = BIT(30),
- },
- [IMX8MP_MEDIABLK_PD_LCDIF_2] = {
- .name = "mediablk-lcdif-2",
- .clk_names = (const char *[]){ "disp2", "apb", "axi", },
- .num_clks = 3,
- .gpc_name = "lcdif2",
- .rst_mask = BIT(11) | BIT(12) | BIT(24),
- .clk_mask = BIT(11) | BIT(12) | BIT(24),
- .path_names = (const char *[]){"lcdif-rd", "lcdif-wr"},
- .num_paths = 2,
- },
- [IMX8MP_MEDIABLK_PD_ISP] = {
- .name = "mediablk-isp",
- .clk_names = (const char *[]){ "isp", "axi", "apb" },
- .num_clks = 3,
- .gpc_name = "isp",
- .rst_mask = BIT(16) | BIT(17) | BIT(18),
- .clk_mask = BIT(16) | BIT(17) | BIT(18),
- .path_names = (const char *[]){"isp0", "isp1"},
- .num_paths = 2,
- },
- [IMX8MP_MEDIABLK_PD_DWE] = {
- .name = "mediablk-dwe",
- .clk_names = (const char *[]){ "axi", "apb" },
- .num_clks = 2,
- .gpc_name = "dwe",
- .rst_mask = BIT(19) | BIT(20) | BIT(21),
- .clk_mask = BIT(19) | BIT(20) | BIT(21),
- .path_names = (const char *[]){"dwe"},
- .num_paths = 1,
- },
- [IMX8MP_MEDIABLK_PD_MIPI_DSI_2] = {
- .name = "mediablk-mipi-dsi-2",
- .clk_names = (const char *[]){ "phy", },
- .num_clks = 1,
- .gpc_name = "mipi-dsi2",
- .rst_mask = BIT(22),
- .clk_mask = BIT(22),
- .mipi_phy_rst_mask = BIT(29),
- },
-};
-
-static const struct imx8m_blk_ctrl_data imx8mp_media_blk_ctl_dev_data = {
- .max_reg = 0x138,
- .power_notifier_fn = imx8mp_media_power_notifier,
- .domains = imx8mp_media_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx8mp_media_blk_ctl_domain_data),
-};
-
-static int imx8mq_vpu_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
- power_nb);
-
- if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
- return NOTIFY_OK;
-
- /*
- * The ADB in the VPUMIX domain has no separate reset and clock
- * enable bits, but is ungated and reset together with the VPUs. The
- * reset and clock enable inputs to the ADB is a logical OR of the
- * VPU bits. In order to set the G2 fuse bits, the G2 clock must
- * also be enabled.
- */
- regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(0) | BIT(1));
- regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(0) | BIT(1));
-
- if (action == GENPD_NOTIFY_ON) {
- /*
- * On power up we have no software backchannel to the GPC to
- * wait for the ADB handshake to happen, so we just delay for a
- * bit. On power down the GPC driver waits for the handshake.
- */
- udelay(5);
-
- /* set "fuse" bits to enable the VPUs */
- regmap_set_bits(bc->regmap, 0x8, 0xffffffff);
- regmap_set_bits(bc->regmap, 0xc, 0xffffffff);
- regmap_set_bits(bc->regmap, 0x10, 0xffffffff);
- }
-
- return NOTIFY_OK;
-}
-
-static const struct imx8m_blk_ctrl_domain_data imx8mq_vpu_blk_ctl_domain_data[] = {
- [IMX8MQ_VPUBLK_PD_G1] = {
- .name = "vpublk-g1",
- .clk_names = (const char *[]){ "g1", },
- .num_clks = 1,
- .gpc_name = "g1",
- .rst_mask = BIT(1),
- .clk_mask = BIT(1),
- },
- [IMX8MQ_VPUBLK_PD_G2] = {
- .name = "vpublk-g2",
- .clk_names = (const char *[]){ "g2", },
- .num_clks = 1,
- .gpc_name = "g2",
- .rst_mask = BIT(0),
- .clk_mask = BIT(0),
- },
-};
-
-static const struct imx8m_blk_ctrl_data imx8mq_vpu_blk_ctl_dev_data = {
- .max_reg = 0x14,
- .power_notifier_fn = imx8mq_vpu_power_notifier,
- .domains = imx8mq_vpu_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx8mq_vpu_blk_ctl_domain_data),
-};
-
-static const struct of_device_id imx8m_blk_ctrl_of_match[] = {
- {
- .compatible = "fsl,imx8mm-vpu-blk-ctrl",
- .data = &imx8mm_vpu_blk_ctl_dev_data
- }, {
- .compatible = "fsl,imx8mm-disp-blk-ctrl",
- .data = &imx8mm_disp_blk_ctl_dev_data
- }, {
- .compatible = "fsl,imx8mn-disp-blk-ctrl",
- .data = &imx8mn_disp_blk_ctl_dev_data
- }, {
- .compatible = "fsl,imx8mp-media-blk-ctrl",
- .data = &imx8mp_media_blk_ctl_dev_data
- }, {
- .compatible = "fsl,imx8mq-vpu-blk-ctrl",
- .data = &imx8mq_vpu_blk_ctl_dev_data
- }, {
- .compatible = "fsl,imx8mp-vpu-blk-ctrl",
- .data = &imx8mp_vpu_blk_ctl_dev_data
- }, {
- /* Sentinel */
- }
-};
-MODULE_DEVICE_TABLE(of, imx8m_blk_ctrl_of_match);
-
-static struct platform_driver imx8m_blk_ctrl_driver = {
- .probe = imx8m_blk_ctrl_probe,
- .remove = imx8m_blk_ctrl_remove,
- .driver = {
- .name = "imx8m-blk-ctrl",
- .pm = &imx8m_blk_ctrl_pm_ops,
- .of_match_table = imx8m_blk_ctrl_of_match,
- },
-};
-module_platform_driver(imx8m_blk_ctrl_driver);
-MODULE_LICENSE("GPL");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-
-/*
- * Copyright 2022 Pengutronix, Lucas Stach <kernel@pengutronix.de>
- */
-
-#include <linux/bitfield.h>
-#include <linux/clk.h>
-#include <linux/clk-provider.h>
-#include <linux/device.h>
-#include <linux/interconnect.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-
-#include <dt-bindings/power/imx8mp-power.h>
-
-#define GPR_REG0 0x0
-#define PCIE_CLOCK_MODULE_EN BIT(0)
-#define USB_CLOCK_MODULE_EN BIT(1)
-#define PCIE_PHY_APB_RST BIT(4)
-#define PCIE_PHY_INIT_RST BIT(5)
-#define GPR_REG1 0x4
-#define PLL_LOCK BIT(13)
-#define GPR_REG2 0x8
-#define P_PLL_MASK GENMASK(5, 0)
-#define M_PLL_MASK GENMASK(15, 6)
-#define S_PLL_MASK GENMASK(18, 16)
-#define GPR_REG3 0xc
-#define PLL_CKE BIT(17)
-#define PLL_RST BIT(31)
-
-struct imx8mp_blk_ctrl_domain;
-
-struct imx8mp_blk_ctrl {
- struct device *dev;
- struct notifier_block power_nb;
- struct device *bus_power_dev;
- struct regmap *regmap;
- struct imx8mp_blk_ctrl_domain *domains;
- struct genpd_onecell_data onecell_data;
- void (*power_off) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
- void (*power_on) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
-};
-
-struct imx8mp_blk_ctrl_domain_data {
- const char *name;
- const char * const *clk_names;
- int num_clks;
- const char * const *path_names;
- int num_paths;
- const char *gpc_name;
-};
-
-#define DOMAIN_MAX_CLKS 2
-#define DOMAIN_MAX_PATHS 3
-
-struct imx8mp_blk_ctrl_domain {
- struct generic_pm_domain genpd;
- const struct imx8mp_blk_ctrl_domain_data *data;
- struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
- struct icc_bulk_data paths[DOMAIN_MAX_PATHS];
- struct device *power_dev;
- struct imx8mp_blk_ctrl *bc;
- int num_paths;
- int id;
-};
-
-struct imx8mp_blk_ctrl_data {
- int max_reg;
- int (*probe) (struct imx8mp_blk_ctrl *bc);
- notifier_fn_t power_notifier_fn;
- void (*power_off) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
- void (*power_on) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain);
- const struct imx8mp_blk_ctrl_domain_data *domains;
- int num_domains;
-};
-
-static inline struct imx8mp_blk_ctrl_domain *
-to_imx8mp_blk_ctrl_domain(struct generic_pm_domain *genpd)
-{
- return container_of(genpd, struct imx8mp_blk_ctrl_domain, genpd);
-}
-
-struct clk_hsio_pll {
- struct clk_hw hw;
- struct regmap *regmap;
-};
-
-static inline struct clk_hsio_pll *to_clk_hsio_pll(struct clk_hw *hw)
-{
- return container_of(hw, struct clk_hsio_pll, hw);
-}
-
-static int clk_hsio_pll_prepare(struct clk_hw *hw)
-{
- struct clk_hsio_pll *clk = to_clk_hsio_pll(hw);
- u32 val;
-
- /* set the PLL configuration */
- regmap_update_bits(clk->regmap, GPR_REG2,
- P_PLL_MASK | M_PLL_MASK | S_PLL_MASK,
- FIELD_PREP(P_PLL_MASK, 12) |
- FIELD_PREP(M_PLL_MASK, 800) |
- FIELD_PREP(S_PLL_MASK, 4));
-
- /* de-assert PLL reset */
- regmap_update_bits(clk->regmap, GPR_REG3, PLL_RST, PLL_RST);
-
- /* enable PLL */
- regmap_update_bits(clk->regmap, GPR_REG3, PLL_CKE, PLL_CKE);
-
- return regmap_read_poll_timeout(clk->regmap, GPR_REG1, val,
- val & PLL_LOCK, 10, 100);
-}
-
-static void clk_hsio_pll_unprepare(struct clk_hw *hw)
-{
- struct clk_hsio_pll *clk = to_clk_hsio_pll(hw);
-
- regmap_update_bits(clk->regmap, GPR_REG3, PLL_RST | PLL_CKE, 0);
-}
-
-static int clk_hsio_pll_is_prepared(struct clk_hw *hw)
-{
- struct clk_hsio_pll *clk = to_clk_hsio_pll(hw);
-
- return regmap_test_bits(clk->regmap, GPR_REG1, PLL_LOCK);
-}
-
-static unsigned long clk_hsio_pll_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
-{
- return 100000000;
-}
-
-static const struct clk_ops clk_hsio_pll_ops = {
- .prepare = clk_hsio_pll_prepare,
- .unprepare = clk_hsio_pll_unprepare,
- .is_prepared = clk_hsio_pll_is_prepared,
- .recalc_rate = clk_hsio_pll_recalc_rate,
-};
-
-static int imx8mp_hsio_blk_ctrl_probe(struct imx8mp_blk_ctrl *bc)
-{
- struct clk_hsio_pll *clk_hsio_pll;
- struct clk_hw *hw;
- struct clk_init_data init = {};
- int ret;
-
- clk_hsio_pll = devm_kzalloc(bc->dev, sizeof(*clk_hsio_pll), GFP_KERNEL);
- if (!clk_hsio_pll)
- return -ENOMEM;
-
- init.name = "hsio_pll";
- init.ops = &clk_hsio_pll_ops;
- init.parent_names = (const char *[]){"osc_24m"};
- init.num_parents = 1;
-
- clk_hsio_pll->regmap = bc->regmap;
- clk_hsio_pll->hw.init = &init;
-
- hw = &clk_hsio_pll->hw;
- ret = devm_clk_hw_register(bc->dev, hw);
- if (ret)
- return ret;
-
- return devm_of_clk_add_hw_provider(bc->dev, of_clk_hw_simple_get, hw);
-}
-
-static void imx8mp_hsio_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc,
- struct imx8mp_blk_ctrl_domain *domain)
-{
- switch (domain->id) {
- case IMX8MP_HSIOBLK_PD_USB:
- regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
- break;
- case IMX8MP_HSIOBLK_PD_PCIE:
- regmap_set_bits(bc->regmap, GPR_REG0, PCIE_CLOCK_MODULE_EN);
- break;
- case IMX8MP_HSIOBLK_PD_PCIE_PHY:
- regmap_set_bits(bc->regmap, GPR_REG0,
- PCIE_PHY_APB_RST | PCIE_PHY_INIT_RST);
- break;
- default:
- break;
- }
-}
-
-static void imx8mp_hsio_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc,
- struct imx8mp_blk_ctrl_domain *domain)
-{
- switch (domain->id) {
- case IMX8MP_HSIOBLK_PD_USB:
- regmap_clear_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
- break;
- case IMX8MP_HSIOBLK_PD_PCIE:
- regmap_clear_bits(bc->regmap, GPR_REG0, PCIE_CLOCK_MODULE_EN);
- break;
- case IMX8MP_HSIOBLK_PD_PCIE_PHY:
- regmap_clear_bits(bc->regmap, GPR_REG0,
- PCIE_PHY_APB_RST | PCIE_PHY_INIT_RST);
- break;
- default:
- break;
- }
-}
-
-static int imx8mp_hsio_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8mp_blk_ctrl *bc = container_of(nb, struct imx8mp_blk_ctrl,
- power_nb);
- struct clk_bulk_data *usb_clk = bc->domains[IMX8MP_HSIOBLK_PD_USB].clks;
- int num_clks = bc->domains[IMX8MP_HSIOBLK_PD_USB].data->num_clks;
- int ret;
-
- switch (action) {
- case GENPD_NOTIFY_ON:
- /*
- * enable USB clock for a moment for the power-on ADB handshake
- * to proceed
- */
- ret = clk_bulk_prepare_enable(num_clks, usb_clk);
- if (ret)
- return NOTIFY_BAD;
- regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
-
- udelay(5);
-
- regmap_clear_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
- clk_bulk_disable_unprepare(num_clks, usb_clk);
- break;
- case GENPD_NOTIFY_PRE_OFF:
- /* enable USB clock for the power-down ADB handshake to work */
- ret = clk_bulk_prepare_enable(num_clks, usb_clk);
- if (ret)
- return NOTIFY_BAD;
-
- regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN);
- break;
- case GENPD_NOTIFY_OFF:
- clk_bulk_disable_unprepare(num_clks, usb_clk);
- break;
- default:
- break;
- }
-
- return NOTIFY_OK;
-}
-
-static const struct imx8mp_blk_ctrl_domain_data imx8mp_hsio_domain_data[] = {
- [IMX8MP_HSIOBLK_PD_USB] = {
- .name = "hsioblk-usb",
- .clk_names = (const char *[]){ "usb" },
- .num_clks = 1,
- .gpc_name = "usb",
- .path_names = (const char *[]){"usb1", "usb2"},
- .num_paths = 2,
- },
- [IMX8MP_HSIOBLK_PD_USB_PHY1] = {
- .name = "hsioblk-usb-phy1",
- .gpc_name = "usb-phy1",
- },
- [IMX8MP_HSIOBLK_PD_USB_PHY2] = {
- .name = "hsioblk-usb-phy2",
- .gpc_name = "usb-phy2",
- },
- [IMX8MP_HSIOBLK_PD_PCIE] = {
- .name = "hsioblk-pcie",
- .clk_names = (const char *[]){ "pcie" },
- .num_clks = 1,
- .gpc_name = "pcie",
- .path_names = (const char *[]){"noc-pcie", "pcie"},
- .num_paths = 2,
- },
- [IMX8MP_HSIOBLK_PD_PCIE_PHY] = {
- .name = "hsioblk-pcie-phy",
- .gpc_name = "pcie-phy",
- },
-};
-
-static const struct imx8mp_blk_ctrl_data imx8mp_hsio_blk_ctl_dev_data = {
- .max_reg = 0x24,
- .probe = imx8mp_hsio_blk_ctrl_probe,
- .power_on = imx8mp_hsio_blk_ctrl_power_on,
- .power_off = imx8mp_hsio_blk_ctrl_power_off,
- .power_notifier_fn = imx8mp_hsio_power_notifier,
- .domains = imx8mp_hsio_domain_data,
- .num_domains = ARRAY_SIZE(imx8mp_hsio_domain_data),
-};
-
-#define HDMI_RTX_RESET_CTL0 0x20
-#define HDMI_RTX_CLK_CTL0 0x40
-#define HDMI_RTX_CLK_CTL1 0x50
-#define HDMI_RTX_CLK_CTL2 0x60
-#define HDMI_RTX_CLK_CTL3 0x70
-#define HDMI_RTX_CLK_CTL4 0x80
-#define HDMI_TX_CONTROL0 0x200
-#define HDMI_LCDIF_NOC_HURRY_MASK GENMASK(14, 12)
-
-static void imx8mp_hdmi_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc,
- struct imx8mp_blk_ctrl_domain *domain)
-{
- switch (domain->id) {
- case IMX8MP_HDMIBLK_PD_IRQSTEER:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(9));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(16));
- break;
- case IMX8MP_HDMIBLK_PD_LCDIF:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
- BIT(16) | BIT(17) | BIT(18) |
- BIT(19) | BIT(20));
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(11));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
- BIT(4) | BIT(5) | BIT(6));
- regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0,
- FIELD_PREP(HDMI_LCDIF_NOC_HURRY_MASK, 7));
- break;
- case IMX8MP_HDMIBLK_PD_PAI:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(17));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(18));
- break;
- case IMX8MP_HDMIBLK_PD_PVI:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(28));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(22));
- break;
- case IMX8MP_HDMIBLK_PD_TRNG:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(27) | BIT(30));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(20));
- break;
- case IMX8MP_HDMIBLK_PD_HDMI_TX:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
- BIT(2) | BIT(4) | BIT(5));
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1,
- BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
- BIT(18) | BIT(19) | BIT(20) | BIT(21));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
- BIT(7) | BIT(10) | BIT(11));
- regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(1));
- break;
- case IMX8MP_HDMIBLK_PD_HDMI_TX_PHY:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(7));
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12));
- regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3));
- break;
- case IMX8MP_HDMIBLK_PD_HDCP:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(11));
- break;
- case IMX8MP_HDMIBLK_PD_HRV:
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(3) | BIT(4) | BIT(5));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(15));
- break;
- default:
- break;
- }
-}
-
-static void imx8mp_hdmi_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc,
- struct imx8mp_blk_ctrl_domain *domain)
-{
- switch (domain->id) {
- case IMX8MP_HDMIBLK_PD_IRQSTEER:
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(9));
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(16));
- break;
- case IMX8MP_HDMIBLK_PD_LCDIF:
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
- BIT(4) | BIT(5) | BIT(6));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(11));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
- BIT(16) | BIT(17) | BIT(18) |
- BIT(19) | BIT(20));
- break;
- case IMX8MP_HDMIBLK_PD_PAI:
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(18));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(17));
- break;
- case IMX8MP_HDMIBLK_PD_PVI:
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(22));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(28));
- break;
- case IMX8MP_HDMIBLK_PD_TRNG:
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(20));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(27) | BIT(30));
- break;
- case IMX8MP_HDMIBLK_PD_HDMI_TX:
- regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(1));
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0,
- BIT(7) | BIT(10) | BIT(11));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1,
- BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
- BIT(18) | BIT(19) | BIT(20) | BIT(21));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
- BIT(2) | BIT(4) | BIT(5));
- break;
- case IMX8MP_HDMIBLK_PD_HDMI_TX_PHY:
- regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3));
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(7));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24));
- break;
- case IMX8MP_HDMIBLK_PD_HDCP:
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(11));
- break;
- case IMX8MP_HDMIBLK_PD_HRV:
- regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(15));
- regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(3) | BIT(4) | BIT(5));
- break;
- default:
- break;
- }
-}
-
-static int imx8mp_hdmi_power_notifier(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct imx8mp_blk_ctrl *bc = container_of(nb, struct imx8mp_blk_ctrl,
- power_nb);
-
- if (action != GENPD_NOTIFY_ON)
- return NOTIFY_OK;
-
- /*
- * Contrary to other blk-ctrls the reset and clock don't clear when the
- * power domain is powered down. To ensure the proper reset pulsing,
- * first clear them all to asserted state, then enable the bus clocks
- * and then release the ADB reset.
- */
- regmap_write(bc->regmap, HDMI_RTX_RESET_CTL0, 0x0);
- regmap_write(bc->regmap, HDMI_RTX_CLK_CTL0, 0x0);
- regmap_write(bc->regmap, HDMI_RTX_CLK_CTL1, 0x0);
- regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0,
- BIT(0) | BIT(1) | BIT(10));
- regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(0));
-
- /*
- * On power up we have no software backchannel to the GPC to
- * wait for the ADB handshake to happen, so we just delay for a
- * bit. On power down the GPC driver waits for the handshake.
- */
- udelay(5);
-
- return NOTIFY_OK;
-}
-
-static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = {
- [IMX8MP_HDMIBLK_PD_IRQSTEER] = {
- .name = "hdmiblk-irqsteer",
- .clk_names = (const char *[]){ "apb" },
- .num_clks = 1,
- .gpc_name = "irqsteer",
- },
- [IMX8MP_HDMIBLK_PD_LCDIF] = {
- .name = "hdmiblk-lcdif",
- .clk_names = (const char *[]){ "axi", "apb" },
- .num_clks = 2,
- .gpc_name = "lcdif",
- .path_names = (const char *[]){"lcdif-hdmi"},
- .num_paths = 1,
- },
- [IMX8MP_HDMIBLK_PD_PAI] = {
- .name = "hdmiblk-pai",
- .clk_names = (const char *[]){ "apb" },
- .num_clks = 1,
- .gpc_name = "pai",
- },
- [IMX8MP_HDMIBLK_PD_PVI] = {
- .name = "hdmiblk-pvi",
- .clk_names = (const char *[]){ "apb" },
- .num_clks = 1,
- .gpc_name = "pvi",
- },
- [IMX8MP_HDMIBLK_PD_TRNG] = {
- .name = "hdmiblk-trng",
- .clk_names = (const char *[]){ "apb" },
- .num_clks = 1,
- .gpc_name = "trng",
- },
- [IMX8MP_HDMIBLK_PD_HDMI_TX] = {
- .name = "hdmiblk-hdmi-tx",
- .clk_names = (const char *[]){ "apb", "ref_266m" },
- .num_clks = 2,
- .gpc_name = "hdmi-tx",
- },
- [IMX8MP_HDMIBLK_PD_HDMI_TX_PHY] = {
- .name = "hdmiblk-hdmi-tx-phy",
- .clk_names = (const char *[]){ "apb", "ref_24m" },
- .num_clks = 2,
- .gpc_name = "hdmi-tx-phy",
- },
- [IMX8MP_HDMIBLK_PD_HRV] = {
- .name = "hdmiblk-hrv",
- .clk_names = (const char *[]){ "axi", "apb" },
- .num_clks = 2,
- .gpc_name = "hrv",
- .path_names = (const char *[]){"hrv"},
- .num_paths = 1,
- },
- [IMX8MP_HDMIBLK_PD_HDCP] = {
- .name = "hdmiblk-hdcp",
- .clk_names = (const char *[]){ "axi", "apb" },
- .num_clks = 2,
- .gpc_name = "hdcp",
- .path_names = (const char *[]){"hdcp"},
- .num_paths = 1,
- },
-};
-
-static const struct imx8mp_blk_ctrl_data imx8mp_hdmi_blk_ctl_dev_data = {
- .max_reg = 0x23c,
- .power_on = imx8mp_hdmi_blk_ctrl_power_on,
- .power_off = imx8mp_hdmi_blk_ctrl_power_off,
- .power_notifier_fn = imx8mp_hdmi_power_notifier,
- .domains = imx8mp_hdmi_domain_data,
- .num_domains = ARRAY_SIZE(imx8mp_hdmi_domain_data),
-};
-
-static int imx8mp_blk_ctrl_power_on(struct generic_pm_domain *genpd)
-{
- struct imx8mp_blk_ctrl_domain *domain = to_imx8mp_blk_ctrl_domain(genpd);
- const struct imx8mp_blk_ctrl_domain_data *data = domain->data;
- struct imx8mp_blk_ctrl *bc = domain->bc;
- int ret;
-
- /* make sure bus domain is awake */
- ret = pm_runtime_resume_and_get(bc->bus_power_dev);
- if (ret < 0) {
- dev_err(bc->dev, "failed to power up bus domain\n");
- return ret;
- }
-
- /* enable upstream clocks */
- ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
- if (ret) {
- dev_err(bc->dev, "failed to enable clocks\n");
- goto bus_put;
- }
-
- /* domain specific blk-ctrl manipulation */
- bc->power_on(bc, domain);
-
- /* power up upstream GPC domain */
- ret = pm_runtime_resume_and_get(domain->power_dev);
- if (ret < 0) {
- dev_err(bc->dev, "failed to power up peripheral domain\n");
- goto clk_disable;
- }
-
- ret = icc_bulk_set_bw(domain->num_paths, domain->paths);
- if (ret)
- dev_err(bc->dev, "failed to set icc bw\n");
-
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-
- return 0;
-
-clk_disable:
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-bus_put:
- pm_runtime_put(bc->bus_power_dev);
-
- return ret;
-}
-
-static int imx8mp_blk_ctrl_power_off(struct generic_pm_domain *genpd)
-{
- struct imx8mp_blk_ctrl_domain *domain = to_imx8mp_blk_ctrl_domain(genpd);
- const struct imx8mp_blk_ctrl_domain_data *data = domain->data;
- struct imx8mp_blk_ctrl *bc = domain->bc;
- int ret;
-
- ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
- if (ret) {
- dev_err(bc->dev, "failed to enable clocks\n");
- return ret;
- }
-
- /* domain specific blk-ctrl manipulation */
- bc->power_off(bc, domain);
-
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-
- /* power down upstream GPC domain */
- pm_runtime_put(domain->power_dev);
-
- /* allow bus domain to suspend */
- pm_runtime_put(bc->bus_power_dev);
-
- return 0;
-}
-
-static struct lock_class_key blk_ctrl_genpd_lock_class;
-
-static int imx8mp_blk_ctrl_probe(struct platform_device *pdev)
-{
- const struct imx8mp_blk_ctrl_data *bc_data;
- struct device *dev = &pdev->dev;
- struct imx8mp_blk_ctrl *bc;
- void __iomem *base;
- int num_domains, i, ret;
-
- struct regmap_config regmap_config = {
- .reg_bits = 32,
- .val_bits = 32,
- .reg_stride = 4,
- };
-
- bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
- if (!bc)
- return -ENOMEM;
-
- bc->dev = dev;
-
- bc_data = of_device_get_match_data(dev);
- num_domains = bc_data->num_domains;
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- regmap_config.max_register = bc_data->max_reg;
- bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config);
- if (IS_ERR(bc->regmap))
- return dev_err_probe(dev, PTR_ERR(bc->regmap),
- "failed to init regmap\n");
-
- bc->domains = devm_kcalloc(dev, num_domains,
- sizeof(struct imx8mp_blk_ctrl_domain),
- GFP_KERNEL);
- if (!bc->domains)
- return -ENOMEM;
-
- bc->onecell_data.num_domains = num_domains;
- bc->onecell_data.domains =
- devm_kcalloc(dev, num_domains,
- sizeof(struct generic_pm_domain *), GFP_KERNEL);
- if (!bc->onecell_data.domains)
- return -ENOMEM;
-
- bc->bus_power_dev = dev_pm_domain_attach_by_name(dev, "bus");
- if (IS_ERR(bc->bus_power_dev))
- return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev),
- "failed to attach bus power domain\n");
-
- bc->power_off = bc_data->power_off;
- bc->power_on = bc_data->power_on;
-
- for (i = 0; i < num_domains; i++) {
- const struct imx8mp_blk_ctrl_domain_data *data = &bc_data->domains[i];
- struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
- int j;
-
- domain->data = data;
- domain->num_paths = data->num_paths;
-
- for (j = 0; j < data->num_clks; j++)
- domain->clks[j].id = data->clk_names[j];
-
- for (j = 0; j < data->num_paths; j++) {
- domain->paths[j].name = data->path_names[j];
- /* Fake value for now, just let ICC could configure NoC mode/priority */
- domain->paths[j].avg_bw = 1;
- domain->paths[j].peak_bw = 1;
- }
-
- ret = devm_of_icc_bulk_get(dev, data->num_paths, domain->paths);
- if (ret) {
- if (ret != -EPROBE_DEFER) {
- dev_warn_once(dev, "Could not get interconnect paths, NoC will stay unconfigured!\n");
- domain->num_paths = 0;
- } else {
- dev_err_probe(dev, ret, "failed to get noc entries\n");
- goto cleanup_pds;
- }
- }
-
- ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
- if (ret) {
- dev_err_probe(dev, ret, "failed to get clock\n");
- goto cleanup_pds;
- }
-
- domain->power_dev =
- dev_pm_domain_attach_by_name(dev, data->gpc_name);
- if (IS_ERR(domain->power_dev)) {
- dev_err_probe(dev, PTR_ERR(domain->power_dev),
- "failed to attach power domain %s\n",
- data->gpc_name);
- ret = PTR_ERR(domain->power_dev);
- goto cleanup_pds;
- }
-
- domain->genpd.name = data->name;
- domain->genpd.power_on = imx8mp_blk_ctrl_power_on;
- domain->genpd.power_off = imx8mp_blk_ctrl_power_off;
- domain->bc = bc;
- domain->id = i;
-
- ret = pm_genpd_init(&domain->genpd, NULL, true);
- if (ret) {
- dev_err_probe(dev, ret, "failed to init power domain\n");
- dev_pm_domain_detach(domain->power_dev, true);
- goto cleanup_pds;
- }
-
- /*
- * We use runtime PM to trigger power on/off of the upstream GPC
- * domain, as a strict hierarchical parent/child power domain
- * setup doesn't allow us to meet the sequencing requirements.
- * This means we have nested locking of genpd locks, without the
- * nesting being visible at the genpd level, so we need a
- * separate lock class to make lockdep aware of the fact that
- * this are separate domain locks that can be nested without a
- * self-deadlock.
- */
- lockdep_set_class(&domain->genpd.mlock,
- &blk_ctrl_genpd_lock_class);
-
- bc->onecell_data.domains[i] = &domain->genpd;
- }
-
- ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data);
- if (ret) {
- dev_err_probe(dev, ret, "failed to add power domain provider\n");
- goto cleanup_pds;
- }
-
- bc->power_nb.notifier_call = bc_data->power_notifier_fn;
- ret = dev_pm_genpd_add_notifier(bc->bus_power_dev, &bc->power_nb);
- if (ret) {
- dev_err_probe(dev, ret, "failed to add power notifier\n");
- goto cleanup_provider;
- }
-
- if (bc_data->probe) {
- ret = bc_data->probe(bc);
- if (ret)
- goto cleanup_provider;
- }
-
- dev_set_drvdata(dev, bc);
-
- return 0;
-
-cleanup_provider:
- of_genpd_del_provider(dev->of_node);
-cleanup_pds:
- for (i--; i >= 0; i--) {
- pm_genpd_remove(&bc->domains[i].genpd);
- dev_pm_domain_detach(bc->domains[i].power_dev, true);
- }
-
- dev_pm_domain_detach(bc->bus_power_dev, true);
-
- return ret;
-}
-
-static int imx8mp_blk_ctrl_remove(struct platform_device *pdev)
-{
- struct imx8mp_blk_ctrl *bc = dev_get_drvdata(&pdev->dev);
- int i;
-
- of_genpd_del_provider(pdev->dev.of_node);
-
- for (i = 0; bc->onecell_data.num_domains; i++) {
- struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
-
- pm_genpd_remove(&domain->genpd);
- dev_pm_domain_detach(domain->power_dev, true);
- }
-
- dev_pm_genpd_remove_notifier(bc->bus_power_dev);
-
- dev_pm_domain_detach(bc->bus_power_dev, true);
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int imx8mp_blk_ctrl_suspend(struct device *dev)
-{
- struct imx8mp_blk_ctrl *bc = dev_get_drvdata(dev);
- int ret, i;
-
- /*
- * This may look strange, but is done so the generic PM_SLEEP code
- * can power down our domains and more importantly power them up again
- * after resume, without tripping over our usage of runtime PM to
- * control the upstream GPC domains. Things happen in the right order
- * in the system suspend/resume paths due to the device parent/child
- * hierarchy.
- */
- ret = pm_runtime_get_sync(bc->bus_power_dev);
- if (ret < 0) {
- pm_runtime_put_noidle(bc->bus_power_dev);
- return ret;
- }
-
- for (i = 0; i < bc->onecell_data.num_domains; i++) {
- struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
-
- ret = pm_runtime_get_sync(domain->power_dev);
- if (ret < 0) {
- pm_runtime_put_noidle(domain->power_dev);
- goto out_fail;
- }
- }
-
- return 0;
-
-out_fail:
- for (i--; i >= 0; i--)
- pm_runtime_put(bc->domains[i].power_dev);
-
- pm_runtime_put(bc->bus_power_dev);
-
- return ret;
-}
-
-static int imx8mp_blk_ctrl_resume(struct device *dev)
-{
- struct imx8mp_blk_ctrl *bc = dev_get_drvdata(dev);
- int i;
-
- for (i = 0; i < bc->onecell_data.num_domains; i++)
- pm_runtime_put(bc->domains[i].power_dev);
-
- pm_runtime_put(bc->bus_power_dev);
-
- return 0;
-}
-#endif
-
-static const struct dev_pm_ops imx8mp_blk_ctrl_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(imx8mp_blk_ctrl_suspend,
- imx8mp_blk_ctrl_resume)
-};
-
-static const struct of_device_id imx8mp_blk_ctrl_of_match[] = {
- {
- .compatible = "fsl,imx8mp-hsio-blk-ctrl",
- .data = &imx8mp_hsio_blk_ctl_dev_data,
- }, {
- .compatible = "fsl,imx8mp-hdmi-blk-ctrl",
- .data = &imx8mp_hdmi_blk_ctl_dev_data,
- }, {
- /* Sentinel */
- }
-};
-MODULE_DEVICE_TABLE(of, imx8mp_blk_ctrl_of_match);
-
-static struct platform_driver imx8mp_blk_ctrl_driver = {
- .probe = imx8mp_blk_ctrl_probe,
- .remove = imx8mp_blk_ctrl_remove,
- .driver = {
- .name = "imx8mp-blk-ctrl",
- .pm = &imx8mp_blk_ctrl_pm_ops,
- .of_match_table = imx8mp_blk_ctrl_of_match,
- },
-};
-module_platform_driver(imx8mp_blk_ctrl_driver);
-MODULE_LICENSE("GPL");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright 2022 NXP, Peng Fan <peng.fan@nxp.com>
- */
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/pm_runtime.h>
-#include <linux/regmap.h>
-#include <linux/sizes.h>
-
-#include <dt-bindings/power/fsl,imx93-power.h>
-
-#define BLK_SFT_RSTN 0x0
-#define BLK_CLK_EN 0x4
-#define BLK_MAX_CLKS 4
-
-#define DOMAIN_MAX_CLKS 4
-
-#define LCDIF_QOS_REG 0xC
-#define LCDIF_DEFAULT_QOS_OFF 12
-#define LCDIF_CFG_QOS_OFF 8
-
-#define PXP_QOS_REG 0x10
-#define PXP_R_DEFAULT_QOS_OFF 28
-#define PXP_R_CFG_QOS_OFF 24
-#define PXP_W_DEFAULT_QOS_OFF 20
-#define PXP_W_CFG_QOS_OFF 16
-
-#define ISI_CACHE_REG 0x14
-
-#define ISI_QOS_REG 0x1C
-#define ISI_V_DEFAULT_QOS_OFF 28
-#define ISI_V_CFG_QOS_OFF 24
-#define ISI_U_DEFAULT_QOS_OFF 20
-#define ISI_U_CFG_QOS_OFF 16
-#define ISI_Y_R_DEFAULT_QOS_OFF 12
-#define ISI_Y_R_CFG_QOS_OFF 8
-#define ISI_Y_W_DEFAULT_QOS_OFF 4
-#define ISI_Y_W_CFG_QOS_OFF 0
-
-#define PRIO_MASK 0xF
-
-#define PRIO(X) (X)
-
-struct imx93_blk_ctrl_domain;
-
-struct imx93_blk_ctrl {
- struct device *dev;
- struct regmap *regmap;
- int num_clks;
- struct clk_bulk_data clks[BLK_MAX_CLKS];
- struct imx93_blk_ctrl_domain *domains;
- struct genpd_onecell_data onecell_data;
-};
-
-#define DOMAIN_MAX_QOS 4
-
-struct imx93_blk_ctrl_qos {
- u32 reg;
- u32 cfg_off;
- u32 default_prio;
- u32 cfg_prio;
-};
-
-struct imx93_blk_ctrl_domain_data {
- const char *name;
- const char * const *clk_names;
- int num_clks;
- u32 rst_mask;
- u32 clk_mask;
- int num_qos;
- struct imx93_blk_ctrl_qos qos[DOMAIN_MAX_QOS];
-};
-
-struct imx93_blk_ctrl_domain {
- struct generic_pm_domain genpd;
- const struct imx93_blk_ctrl_domain_data *data;
- struct clk_bulk_data clks[DOMAIN_MAX_CLKS];
- struct imx93_blk_ctrl *bc;
-};
-
-struct imx93_blk_ctrl_data {
- const struct imx93_blk_ctrl_domain_data *domains;
- int num_domains;
- const char * const *clk_names;
- int num_clks;
- const struct regmap_access_table *reg_access_table;
-};
-
-static inline struct imx93_blk_ctrl_domain *
-to_imx93_blk_ctrl_domain(struct generic_pm_domain *genpd)
-{
- return container_of(genpd, struct imx93_blk_ctrl_domain, genpd);
-}
-
-static int imx93_blk_ctrl_set_qos(struct imx93_blk_ctrl_domain *domain)
-{
- const struct imx93_blk_ctrl_domain_data *data = domain->data;
- struct imx93_blk_ctrl *bc = domain->bc;
- const struct imx93_blk_ctrl_qos *qos;
- u32 val, mask;
- int i;
-
- for (i = 0; i < data->num_qos; i++) {
- qos = &data->qos[i];
-
- mask = PRIO_MASK << qos->cfg_off;
- mask |= PRIO_MASK << (qos->cfg_off + 4);
- val = qos->cfg_prio << qos->cfg_off;
- val |= qos->default_prio << (qos->cfg_off + 4);
-
- regmap_write_bits(bc->regmap, qos->reg, mask, val);
-
- dev_dbg(bc->dev, "data->qos[i].reg 0x%x 0x%x\n", qos->reg, val);
- }
-
- return 0;
-}
-
-static int imx93_blk_ctrl_power_on(struct generic_pm_domain *genpd)
-{
- struct imx93_blk_ctrl_domain *domain = to_imx93_blk_ctrl_domain(genpd);
- const struct imx93_blk_ctrl_domain_data *data = domain->data;
- struct imx93_blk_ctrl *bc = domain->bc;
- int ret;
-
- ret = clk_bulk_prepare_enable(bc->num_clks, bc->clks);
- if (ret) {
- dev_err(bc->dev, "failed to enable bus clocks\n");
- return ret;
- }
-
- ret = clk_bulk_prepare_enable(data->num_clks, domain->clks);
- if (ret) {
- clk_bulk_disable_unprepare(bc->num_clks, bc->clks);
- dev_err(bc->dev, "failed to enable clocks\n");
- return ret;
- }
-
- ret = pm_runtime_get_sync(bc->dev);
- if (ret < 0) {
- pm_runtime_put_noidle(bc->dev);
- dev_err(bc->dev, "failed to power up domain\n");
- goto disable_clk;
- }
-
- /* ungate clk */
- regmap_clear_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
-
- /* release reset */
- regmap_set_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
-
- dev_dbg(bc->dev, "pd_on: name: %s\n", genpd->name);
-
- return imx93_blk_ctrl_set_qos(domain);
-
-disable_clk:
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-
- clk_bulk_disable_unprepare(bc->num_clks, bc->clks);
-
- return ret;
-}
-
-static int imx93_blk_ctrl_power_off(struct generic_pm_domain *genpd)
-{
- struct imx93_blk_ctrl_domain *domain = to_imx93_blk_ctrl_domain(genpd);
- const struct imx93_blk_ctrl_domain_data *data = domain->data;
- struct imx93_blk_ctrl *bc = domain->bc;
-
- dev_dbg(bc->dev, "pd_off: name: %s\n", genpd->name);
-
- regmap_clear_bits(bc->regmap, BLK_SFT_RSTN, data->rst_mask);
- regmap_set_bits(bc->regmap, BLK_CLK_EN, data->clk_mask);
-
- pm_runtime_put(bc->dev);
-
- clk_bulk_disable_unprepare(data->num_clks, domain->clks);
-
- clk_bulk_disable_unprepare(bc->num_clks, bc->clks);
-
- return 0;
-}
-
-static int imx93_blk_ctrl_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- const struct imx93_blk_ctrl_data *bc_data = of_device_get_match_data(dev);
- struct imx93_blk_ctrl *bc;
- void __iomem *base;
- int i, ret;
-
- struct regmap_config regmap_config = {
- .reg_bits = 32,
- .val_bits = 32,
- .reg_stride = 4,
- .rd_table = bc_data->reg_access_table,
- .wr_table = bc_data->reg_access_table,
- .max_register = SZ_4K,
- };
-
- bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL);
- if (!bc)
- return -ENOMEM;
-
- bc->dev = dev;
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config);
- if (IS_ERR(bc->regmap))
- return dev_err_probe(dev, PTR_ERR(bc->regmap),
- "failed to init regmap\n");
-
- bc->domains = devm_kcalloc(dev, bc_data->num_domains,
- sizeof(struct imx93_blk_ctrl_domain),
- GFP_KERNEL);
- if (!bc->domains)
- return -ENOMEM;
-
- bc->onecell_data.num_domains = bc_data->num_domains;
- bc->onecell_data.domains =
- devm_kcalloc(dev, bc_data->num_domains,
- sizeof(struct generic_pm_domain *), GFP_KERNEL);
- if (!bc->onecell_data.domains)
- return -ENOMEM;
-
- for (i = 0; i < bc_data->num_clks; i++)
- bc->clks[i].id = bc_data->clk_names[i];
- bc->num_clks = bc_data->num_clks;
-
- ret = devm_clk_bulk_get(dev, bc->num_clks, bc->clks);
- if (ret) {
- dev_err_probe(dev, ret, "failed to get bus clock\n");
- return ret;
- }
-
- for (i = 0; i < bc_data->num_domains; i++) {
- const struct imx93_blk_ctrl_domain_data *data = &bc_data->domains[i];
- struct imx93_blk_ctrl_domain *domain = &bc->domains[i];
- int j;
-
- domain->data = data;
-
- for (j = 0; j < data->num_clks; j++)
- domain->clks[j].id = data->clk_names[j];
-
- ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks);
- if (ret) {
- dev_err_probe(dev, ret, "failed to get clock\n");
- goto cleanup_pds;
- }
-
- domain->genpd.name = data->name;
- domain->genpd.power_on = imx93_blk_ctrl_power_on;
- domain->genpd.power_off = imx93_blk_ctrl_power_off;
- domain->bc = bc;
-
- ret = pm_genpd_init(&domain->genpd, NULL, true);
- if (ret) {
- dev_err_probe(dev, ret, "failed to init power domain\n");
- goto cleanup_pds;
- }
-
- bc->onecell_data.domains[i] = &domain->genpd;
- }
-
- pm_runtime_enable(dev);
-
- ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data);
- if (ret) {
- dev_err_probe(dev, ret, "failed to add power domain provider\n");
- goto cleanup_pds;
- }
-
- dev_set_drvdata(dev, bc);
-
- return 0;
-
-cleanup_pds:
- for (i--; i >= 0; i--)
- pm_genpd_remove(&bc->domains[i].genpd);
-
- return ret;
-}
-
-static int imx93_blk_ctrl_remove(struct platform_device *pdev)
-{
- struct imx93_blk_ctrl *bc = dev_get_drvdata(&pdev->dev);
- int i;
-
- of_genpd_del_provider(pdev->dev.of_node);
-
- for (i = 0; bc->onecell_data.num_domains; i++) {
- struct imx93_blk_ctrl_domain *domain = &bc->domains[i];
-
- pm_genpd_remove(&domain->genpd);
- }
-
- return 0;
-}
-
-static const struct imx93_blk_ctrl_domain_data imx93_media_blk_ctl_domain_data[] = {
- [IMX93_MEDIABLK_PD_MIPI_DSI] = {
- .name = "mediablk-mipi-dsi",
- .clk_names = (const char *[]){ "dsi" },
- .num_clks = 1,
- .rst_mask = BIT(11) | BIT(12),
- .clk_mask = BIT(11) | BIT(12),
- },
- [IMX93_MEDIABLK_PD_MIPI_CSI] = {
- .name = "mediablk-mipi-csi",
- .clk_names = (const char *[]){ "cam", "csi" },
- .num_clks = 2,
- .rst_mask = BIT(9) | BIT(10),
- .clk_mask = BIT(9) | BIT(10),
- },
- [IMX93_MEDIABLK_PD_PXP] = {
- .name = "mediablk-pxp",
- .clk_names = (const char *[]){ "pxp" },
- .num_clks = 1,
- .rst_mask = BIT(7) | BIT(8),
- .clk_mask = BIT(7) | BIT(8),
- .num_qos = 2,
- .qos = {
- {
- .reg = PXP_QOS_REG,
- .cfg_off = PXP_R_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(6),
- }, {
- .reg = PXP_QOS_REG,
- .cfg_off = PXP_W_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(6),
- }
- }
- },
- [IMX93_MEDIABLK_PD_LCDIF] = {
- .name = "mediablk-lcdif",
- .clk_names = (const char *[]){ "disp", "lcdif" },
- .num_clks = 2,
- .rst_mask = BIT(4) | BIT(5) | BIT(6),
- .clk_mask = BIT(4) | BIT(5) | BIT(6),
- .num_qos = 1,
- .qos = {
- {
- .reg = LCDIF_QOS_REG,
- .cfg_off = LCDIF_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(7),
- }
- }
- },
- [IMX93_MEDIABLK_PD_ISI] = {
- .name = "mediablk-isi",
- .clk_names = (const char *[]){ "isi" },
- .num_clks = 1,
- .rst_mask = BIT(2) | BIT(3),
- .clk_mask = BIT(2) | BIT(3),
- .num_qos = 4,
- .qos = {
- {
- .reg = ISI_QOS_REG,
- .cfg_off = ISI_Y_W_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(7),
- }, {
- .reg = ISI_QOS_REG,
- .cfg_off = ISI_Y_R_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(7),
- }, {
- .reg = ISI_QOS_REG,
- .cfg_off = ISI_U_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(7),
- }, {
- .reg = ISI_QOS_REG,
- .cfg_off = ISI_V_CFG_QOS_OFF,
- .default_prio = PRIO(3),
- .cfg_prio = PRIO(7),
- }
- }
- },
-};
-
-static const struct regmap_range imx93_media_blk_ctl_yes_ranges[] = {
- regmap_reg_range(BLK_SFT_RSTN, BLK_CLK_EN),
- regmap_reg_range(LCDIF_QOS_REG, ISI_CACHE_REG),
- regmap_reg_range(ISI_QOS_REG, ISI_QOS_REG),
-};
-
-static const struct regmap_access_table imx93_media_blk_ctl_access_table = {
- .yes_ranges = imx93_media_blk_ctl_yes_ranges,
- .n_yes_ranges = ARRAY_SIZE(imx93_media_blk_ctl_yes_ranges),
-};
-
-static const struct imx93_blk_ctrl_data imx93_media_blk_ctl_dev_data = {
- .domains = imx93_media_blk_ctl_domain_data,
- .num_domains = ARRAY_SIZE(imx93_media_blk_ctl_domain_data),
- .clk_names = (const char *[]){ "axi", "apb", "nic", },
- .num_clks = 3,
- .reg_access_table = &imx93_media_blk_ctl_access_table,
-};
-
-static const struct of_device_id imx93_blk_ctrl_of_match[] = {
- {
- .compatible = "fsl,imx93-media-blk-ctrl",
- .data = &imx93_media_blk_ctl_dev_data
- }, {
- /* Sentinel */
- }
-};
-MODULE_DEVICE_TABLE(of, imx93_blk_ctrl_of_match);
-
-static struct platform_driver imx93_blk_ctrl_driver = {
- .probe = imx93_blk_ctrl_probe,
- .remove = imx93_blk_ctrl_remove,
- .driver = {
- .name = "imx93-blk-ctrl",
- .of_match_table = imx93_blk_ctrl_of_match,
- },
-};
-module_platform_driver(imx93_blk_ctrl_driver);
-
-MODULE_AUTHOR("Peng Fan <peng.fan@nxp.com>");
-MODULE_DESCRIPTION("i.MX93 BLK CTRL driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright 2022 NXP
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/of_device.h>
-#include <linux/iopoll.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-
-#define MIX_SLICE_SW_CTRL_OFF 0x20
-#define SLICE_SW_CTRL_PSW_CTRL_OFF_MASK BIT(4)
-#define SLICE_SW_CTRL_PDN_SOFT_MASK BIT(31)
-
-#define MIX_FUNC_STAT_OFF 0xB4
-
-#define FUNC_STAT_PSW_STAT_MASK BIT(0)
-#define FUNC_STAT_RST_STAT_MASK BIT(2)
-#define FUNC_STAT_ISO_STAT_MASK BIT(4)
-
-struct imx93_power_domain {
- struct generic_pm_domain genpd;
- struct device *dev;
- void __iomem *addr;
- struct clk_bulk_data *clks;
- int num_clks;
- bool init_off;
-};
-
-#define to_imx93_pd(_genpd) container_of(_genpd, struct imx93_power_domain, genpd)
-
-static int imx93_pd_on(struct generic_pm_domain *genpd)
-{
- struct imx93_power_domain *domain = to_imx93_pd(genpd);
- void __iomem *addr = domain->addr;
- u32 val;
- int ret;
-
- ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
- if (ret) {
- dev_err(domain->dev, "failed to enable clocks for domain: %s\n", genpd->name);
- return ret;
- }
-
- val = readl(addr + MIX_SLICE_SW_CTRL_OFF);
- val &= ~SLICE_SW_CTRL_PDN_SOFT_MASK;
- writel(val, addr + MIX_SLICE_SW_CTRL_OFF);
-
- ret = readl_poll_timeout(addr + MIX_FUNC_STAT_OFF, val,
- !(val & FUNC_STAT_ISO_STAT_MASK), 1, 10000);
- if (ret) {
- dev_err(domain->dev, "pd_on timeout: name: %s, stat: %x\n", genpd->name, val);
- return ret;
- }
-
- return 0;
-}
-
-static int imx93_pd_off(struct generic_pm_domain *genpd)
-{
- struct imx93_power_domain *domain = to_imx93_pd(genpd);
- void __iomem *addr = domain->addr;
- int ret;
- u32 val;
-
- /* Power off MIX */
- val = readl(addr + MIX_SLICE_SW_CTRL_OFF);
- val |= SLICE_SW_CTRL_PDN_SOFT_MASK;
- writel(val, addr + MIX_SLICE_SW_CTRL_OFF);
-
- ret = readl_poll_timeout(addr + MIX_FUNC_STAT_OFF, val,
- val & FUNC_STAT_PSW_STAT_MASK, 1, 1000);
- if (ret) {
- dev_err(domain->dev, "pd_off timeout: name: %s, stat: %x\n", genpd->name, val);
- return ret;
- }
-
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-
- return 0;
-};
-
-static int imx93_pd_remove(struct platform_device *pdev)
-{
- struct imx93_power_domain *domain = platform_get_drvdata(pdev);
- struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
-
- if (!domain->init_off)
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-
- of_genpd_del_provider(np);
- pm_genpd_remove(&domain->genpd);
-
- return 0;
-}
-
-static int imx93_pd_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
- struct imx93_power_domain *domain;
- int ret;
-
- domain = devm_kzalloc(dev, sizeof(*domain), GFP_KERNEL);
- if (!domain)
- return -ENOMEM;
-
- domain->addr = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(domain->addr))
- return PTR_ERR(domain->addr);
-
- domain->num_clks = devm_clk_bulk_get_all(dev, &domain->clks);
- if (domain->num_clks < 0)
- return dev_err_probe(dev, domain->num_clks, "Failed to get domain's clocks\n");
-
- domain->genpd.name = dev_name(dev);
- domain->genpd.power_off = imx93_pd_off;
- domain->genpd.power_on = imx93_pd_on;
- domain->dev = dev;
-
- domain->init_off = readl(domain->addr + MIX_FUNC_STAT_OFF) & FUNC_STAT_ISO_STAT_MASK;
- /* Just to sync the status of hardware */
- if (!domain->init_off) {
- ret = clk_bulk_prepare_enable(domain->num_clks, domain->clks);
- if (ret) {
- dev_err(domain->dev, "failed to enable clocks for domain: %s\n",
- domain->genpd.name);
- return ret;
- }
- }
-
- ret = pm_genpd_init(&domain->genpd, NULL, domain->init_off);
- if (ret)
- goto err_clk_unprepare;
-
- platform_set_drvdata(pdev, domain);
-
- ret = of_genpd_add_provider_simple(np, &domain->genpd);
- if (ret)
- goto err_genpd_remove;
-
- return 0;
-
-err_genpd_remove:
- pm_genpd_remove(&domain->genpd);
-
-err_clk_unprepare:
- if (!domain->init_off)
- clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
-
- return ret;
-}
-
-static const struct of_device_id imx93_pd_ids[] = {
- { .compatible = "fsl,imx93-src-slice" },
- { }
-};
-MODULE_DEVICE_TABLE(of, imx93_pd_ids);
-
-static struct platform_driver imx93_power_domain_driver = {
- .driver = {
- .name = "imx93_power_domain",
- .of_match_table = imx93_pd_ids,
- },
- .probe = imx93_pd_probe,
- .remove = imx93_pd_remove,
-};
-module_platform_driver(imx93_power_domain_driver);
-
-MODULE_AUTHOR("Peng Fan <peng.fan@nxp.com>");
-MODULE_DESCRIPTION("NXP i.MX93 power domain driver");
-MODULE_LICENSE("GPL");
projects / linux.git / commitdiff