obj-y += samsung/
obj-y += starfive/
obj-y += sunxi/
+obj-y += tegra/
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_SOC_TEGRA_POWERGATE_BPMP) += powergate-bpmp.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved
+ */
+
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/slab.h>
+
+#include <soc/tegra/bpmp.h>
+#include <soc/tegra/bpmp-abi.h>
+
+struct tegra_powergate_info {
+ unsigned int id;
+ char *name;
+};
+
+struct tegra_powergate {
+ struct generic_pm_domain genpd;
+ struct tegra_bpmp *bpmp;
+ unsigned int id;
+};
+
+static inline struct tegra_powergate *
+to_tegra_powergate(struct generic_pm_domain *genpd)
+{
+ return container_of(genpd, struct tegra_powergate, genpd);
+}
+
+static int tegra_bpmp_powergate_set_state(struct tegra_bpmp *bpmp,
+ unsigned int id, u32 state)
+{
+ struct mrq_pg_request request;
+ struct tegra_bpmp_message msg;
+ int err;
+
+ memset(&request, 0, sizeof(request));
+ request.cmd = CMD_PG_SET_STATE;
+ request.id = id;
+ request.set_state.state = state;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.mrq = MRQ_PG;
+ msg.tx.data = &request;
+ msg.tx.size = sizeof(request);
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int tegra_bpmp_powergate_get_state(struct tegra_bpmp *bpmp,
+ unsigned int id)
+{
+ struct mrq_pg_response response;
+ struct mrq_pg_request request;
+ struct tegra_bpmp_message msg;
+ int err;
+
+ memset(&request, 0, sizeof(request));
+ request.cmd = CMD_PG_GET_STATE;
+ request.id = id;
+
+ memset(&response, 0, sizeof(response));
+
+ memset(&msg, 0, sizeof(msg));
+ msg.mrq = MRQ_PG;
+ msg.tx.data = &request;
+ msg.tx.size = sizeof(request);
+ msg.rx.data = &response;
+ msg.rx.size = sizeof(response);
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return PG_STATE_OFF;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return response.get_state.state;
+}
+
+static int tegra_bpmp_powergate_get_max_id(struct tegra_bpmp *bpmp)
+{
+ struct mrq_pg_response response;
+ struct mrq_pg_request request;
+ struct tegra_bpmp_message msg;
+ int err;
+
+ memset(&request, 0, sizeof(request));
+ request.cmd = CMD_PG_GET_MAX_ID;
+
+ memset(&response, 0, sizeof(response));
+
+ memset(&msg, 0, sizeof(msg));
+ msg.mrq = MRQ_PG;
+ msg.tx.data = &request;
+ msg.tx.size = sizeof(request);
+ msg.rx.data = &response;
+ msg.rx.size = sizeof(response);
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return response.get_max_id.max_id;
+}
+
+static char *tegra_bpmp_powergate_get_name(struct tegra_bpmp *bpmp,
+ unsigned int id)
+{
+ struct mrq_pg_response response;
+ struct mrq_pg_request request;
+ struct tegra_bpmp_message msg;
+ int err;
+
+ memset(&request, 0, sizeof(request));
+ request.cmd = CMD_PG_GET_NAME;
+ request.id = id;
+
+ memset(&response, 0, sizeof(response));
+
+ memset(&msg, 0, sizeof(msg));
+ msg.mrq = MRQ_PG;
+ msg.tx.data = &request;
+ msg.tx.size = sizeof(request);
+ msg.rx.data = &response;
+ msg.rx.size = sizeof(response);
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0 || msg.rx.ret < 0)
+ return NULL;
+
+ return kstrdup(response.get_name.name, GFP_KERNEL);
+}
+
+static inline bool tegra_bpmp_powergate_is_powered(struct tegra_bpmp *bpmp,
+ unsigned int id)
+{
+ return tegra_bpmp_powergate_get_state(bpmp, id) != PG_STATE_OFF;
+}
+
+static int tegra_powergate_power_on(struct generic_pm_domain *domain)
+{
+ struct tegra_powergate *powergate = to_tegra_powergate(domain);
+ struct tegra_bpmp *bpmp = powergate->bpmp;
+
+ return tegra_bpmp_powergate_set_state(bpmp, powergate->id,
+ PG_STATE_ON);
+}
+
+static int tegra_powergate_power_off(struct generic_pm_domain *domain)
+{
+ struct tegra_powergate *powergate = to_tegra_powergate(domain);
+ struct tegra_bpmp *bpmp = powergate->bpmp;
+
+ return tegra_bpmp_powergate_set_state(bpmp, powergate->id,
+ PG_STATE_OFF);
+}
+
+static struct tegra_powergate *
+tegra_powergate_add(struct tegra_bpmp *bpmp,
+ const struct tegra_powergate_info *info)
+{
+ struct tegra_powergate *powergate;
+ bool off;
+ int err;
+
+ off = !tegra_bpmp_powergate_is_powered(bpmp, info->id);
+
+ powergate = devm_kzalloc(bpmp->dev, sizeof(*powergate), GFP_KERNEL);
+ if (!powergate)
+ return ERR_PTR(-ENOMEM);
+
+ powergate->id = info->id;
+ powergate->bpmp = bpmp;
+
+ powergate->genpd.name = kstrdup(info->name, GFP_KERNEL);
+ powergate->genpd.power_on = tegra_powergate_power_on;
+ powergate->genpd.power_off = tegra_powergate_power_off;
+
+ err = pm_genpd_init(&powergate->genpd, NULL, off);
+ if (err < 0) {
+ kfree(powergate->genpd.name);
+ return ERR_PTR(err);
+ }
+
+ return powergate;
+}
+
+static void tegra_powergate_remove(struct tegra_powergate *powergate)
+{
+ struct generic_pm_domain *genpd = &powergate->genpd;
+ struct tegra_bpmp *bpmp = powergate->bpmp;
+ int err;
+
+ err = pm_genpd_remove(genpd);
+ if (err < 0)
+ dev_err(bpmp->dev, "failed to remove power domain %s: %d\n",
+ genpd->name, err);
+
+ kfree(genpd->name);
+}
+
+static int
+tegra_bpmp_probe_powergates(struct tegra_bpmp *bpmp,
+ struct tegra_powergate_info **powergatesp)
+{
+ struct tegra_powergate_info *powergates;
+ unsigned int max_id, id, count = 0;
+ unsigned int num_holes = 0;
+ int err;
+
+ err = tegra_bpmp_powergate_get_max_id(bpmp);
+ if (err < 0)
+ return err;
+
+ max_id = err;
+
+ dev_dbg(bpmp->dev, "maximum powergate ID: %u\n", max_id);
+
+ powergates = kcalloc(max_id + 1, sizeof(*powergates), GFP_KERNEL);
+ if (!powergates)
+ return -ENOMEM;
+
+ for (id = 0; id <= max_id; id++) {
+ struct tegra_powergate_info *info = &powergates[count];
+
+ info->name = tegra_bpmp_powergate_get_name(bpmp, id);
+ if (!info->name || info->name[0] == '\0') {
+ num_holes++;
+ continue;
+ }
+
+ info->id = id;
+ count++;
+ }
+
+ dev_dbg(bpmp->dev, "holes: %u\n", num_holes);
+
+ *powergatesp = powergates;
+
+ return count;
+}
+
+static int tegra_bpmp_add_powergates(struct tegra_bpmp *bpmp,
+ struct tegra_powergate_info *powergates,
+ unsigned int count)
+{
+ struct genpd_onecell_data *genpd = &bpmp->genpd;
+ struct generic_pm_domain **domains;
+ struct tegra_powergate *powergate;
+ unsigned int i;
+ int err;
+
+ domains = kcalloc(count, sizeof(*domains), GFP_KERNEL);
+ if (!domains)
+ return -ENOMEM;
+
+ for (i = 0; i < count; i++) {
+ powergate = tegra_powergate_add(bpmp, &powergates[i]);
+ if (IS_ERR(powergate)) {
+ err = PTR_ERR(powergate);
+ goto remove;
+ }
+
+ dev_dbg(bpmp->dev, "added power domain %s\n",
+ powergate->genpd.name);
+ domains[i] = &powergate->genpd;
+ }
+
+ genpd->num_domains = count;
+ genpd->domains = domains;
+
+ return 0;
+
+remove:
+ while (i--) {
+ powergate = to_tegra_powergate(domains[i]);
+ tegra_powergate_remove(powergate);
+ }
+
+ kfree(domains);
+ return err;
+}
+
+static void tegra_bpmp_remove_powergates(struct tegra_bpmp *bpmp)
+{
+ struct genpd_onecell_data *genpd = &bpmp->genpd;
+ unsigned int i = genpd->num_domains;
+ struct tegra_powergate *powergate;
+
+ while (i--) {
+ dev_dbg(bpmp->dev, "removing power domain %s\n",
+ genpd->domains[i]->name);
+ powergate = to_tegra_powergate(genpd->domains[i]);
+ tegra_powergate_remove(powergate);
+ }
+}
+
+static struct generic_pm_domain *
+tegra_powergate_xlate(struct of_phandle_args *spec, void *data)
+{
+ struct generic_pm_domain *domain = ERR_PTR(-ENOENT);
+ struct genpd_onecell_data *genpd = data;
+ unsigned int i;
+
+ for (i = 0; i < genpd->num_domains; i++) {
+ struct tegra_powergate *powergate;
+
+ powergate = to_tegra_powergate(genpd->domains[i]);
+ if (powergate->id == spec->args[0]) {
+ domain = &powergate->genpd;
+ break;
+ }
+ }
+
+ return domain;
+}
+
+int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp)
+{
+ struct device_node *np = bpmp->dev->of_node;
+ struct tegra_powergate_info *powergates;
+ struct device *dev = bpmp->dev;
+ unsigned int count, i;
+ int err;
+
+ err = tegra_bpmp_probe_powergates(bpmp, &powergates);
+ if (err < 0)
+ return err;
+
+ count = err;
+
+ dev_dbg(dev, "%u power domains probed\n", count);
+
+ err = tegra_bpmp_add_powergates(bpmp, powergates, count);
+ if (err < 0)
+ goto free;
+
+ bpmp->genpd.xlate = tegra_powergate_xlate;
+
+ err = of_genpd_add_provider_onecell(np, &bpmp->genpd);
+ if (err < 0) {
+ dev_err(dev, "failed to add power domain provider: %d\n", err);
+ tegra_bpmp_remove_powergates(bpmp);
+ }
+
+free:
+ for (i = 0; i < count; i++)
+ kfree(powergates[i].name);
+
+ kfree(powergates);
+ return err;
+}
obj-y += common.o
obj-$(CONFIG_SOC_TEGRA_FLOWCTRL) += flowctrl.o
obj-$(CONFIG_SOC_TEGRA_PMC) += pmc.o
-obj-$(CONFIG_SOC_TEGRA_POWERGATE_BPMP) += powergate-bpmp.o
obj-$(CONFIG_SOC_TEGRA20_VOLTAGE_COUPLER) += regulators-tegra20.o
obj-$(CONFIG_SOC_TEGRA30_VOLTAGE_COUPLER) += regulators-tegra30.o
obj-$(CONFIG_ARCH_TEGRA_186_SOC) += ari-tegra186.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved
- */
-
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/slab.h>
-
-#include <soc/tegra/bpmp.h>
-#include <soc/tegra/bpmp-abi.h>
-
-struct tegra_powergate_info {
- unsigned int id;
- char *name;
-};
-
-struct tegra_powergate {
- struct generic_pm_domain genpd;
- struct tegra_bpmp *bpmp;
- unsigned int id;
-};
-
-static inline struct tegra_powergate *
-to_tegra_powergate(struct generic_pm_domain *genpd)
-{
- return container_of(genpd, struct tegra_powergate, genpd);
-}
-
-static int tegra_bpmp_powergate_set_state(struct tegra_bpmp *bpmp,
- unsigned int id, u32 state)
-{
- struct mrq_pg_request request;
- struct tegra_bpmp_message msg;
- int err;
-
- memset(&request, 0, sizeof(request));
- request.cmd = CMD_PG_SET_STATE;
- request.id = id;
- request.set_state.state = state;
-
- memset(&msg, 0, sizeof(msg));
- msg.mrq = MRQ_PG;
- msg.tx.data = &request;
- msg.tx.size = sizeof(request);
-
- err = tegra_bpmp_transfer(bpmp, &msg);
- if (err < 0)
- return err;
- else if (msg.rx.ret < 0)
- return -EINVAL;
-
- return 0;
-}
-
-static int tegra_bpmp_powergate_get_state(struct tegra_bpmp *bpmp,
- unsigned int id)
-{
- struct mrq_pg_response response;
- struct mrq_pg_request request;
- struct tegra_bpmp_message msg;
- int err;
-
- memset(&request, 0, sizeof(request));
- request.cmd = CMD_PG_GET_STATE;
- request.id = id;
-
- memset(&response, 0, sizeof(response));
-
- memset(&msg, 0, sizeof(msg));
- msg.mrq = MRQ_PG;
- msg.tx.data = &request;
- msg.tx.size = sizeof(request);
- msg.rx.data = &response;
- msg.rx.size = sizeof(response);
-
- err = tegra_bpmp_transfer(bpmp, &msg);
- if (err < 0)
- return PG_STATE_OFF;
- else if (msg.rx.ret < 0)
- return -EINVAL;
-
- return response.get_state.state;
-}
-
-static int tegra_bpmp_powergate_get_max_id(struct tegra_bpmp *bpmp)
-{
- struct mrq_pg_response response;
- struct mrq_pg_request request;
- struct tegra_bpmp_message msg;
- int err;
-
- memset(&request, 0, sizeof(request));
- request.cmd = CMD_PG_GET_MAX_ID;
-
- memset(&response, 0, sizeof(response));
-
- memset(&msg, 0, sizeof(msg));
- msg.mrq = MRQ_PG;
- msg.tx.data = &request;
- msg.tx.size = sizeof(request);
- msg.rx.data = &response;
- msg.rx.size = sizeof(response);
-
- err = tegra_bpmp_transfer(bpmp, &msg);
- if (err < 0)
- return err;
- else if (msg.rx.ret < 0)
- return -EINVAL;
-
- return response.get_max_id.max_id;
-}
-
-static char *tegra_bpmp_powergate_get_name(struct tegra_bpmp *bpmp,
- unsigned int id)
-{
- struct mrq_pg_response response;
- struct mrq_pg_request request;
- struct tegra_bpmp_message msg;
- int err;
-
- memset(&request, 0, sizeof(request));
- request.cmd = CMD_PG_GET_NAME;
- request.id = id;
-
- memset(&response, 0, sizeof(response));
-
- memset(&msg, 0, sizeof(msg));
- msg.mrq = MRQ_PG;
- msg.tx.data = &request;
- msg.tx.size = sizeof(request);
- msg.rx.data = &response;
- msg.rx.size = sizeof(response);
-
- err = tegra_bpmp_transfer(bpmp, &msg);
- if (err < 0 || msg.rx.ret < 0)
- return NULL;
-
- return kstrdup(response.get_name.name, GFP_KERNEL);
-}
-
-static inline bool tegra_bpmp_powergate_is_powered(struct tegra_bpmp *bpmp,
- unsigned int id)
-{
- return tegra_bpmp_powergate_get_state(bpmp, id) != PG_STATE_OFF;
-}
-
-static int tegra_powergate_power_on(struct generic_pm_domain *domain)
-{
- struct tegra_powergate *powergate = to_tegra_powergate(domain);
- struct tegra_bpmp *bpmp = powergate->bpmp;
-
- return tegra_bpmp_powergate_set_state(bpmp, powergate->id,
- PG_STATE_ON);
-}
-
-static int tegra_powergate_power_off(struct generic_pm_domain *domain)
-{
- struct tegra_powergate *powergate = to_tegra_powergate(domain);
- struct tegra_bpmp *bpmp = powergate->bpmp;
-
- return tegra_bpmp_powergate_set_state(bpmp, powergate->id,
- PG_STATE_OFF);
-}
-
-static struct tegra_powergate *
-tegra_powergate_add(struct tegra_bpmp *bpmp,
- const struct tegra_powergate_info *info)
-{
- struct tegra_powergate *powergate;
- bool off;
- int err;
-
- off = !tegra_bpmp_powergate_is_powered(bpmp, info->id);
-
- powergate = devm_kzalloc(bpmp->dev, sizeof(*powergate), GFP_KERNEL);
- if (!powergate)
- return ERR_PTR(-ENOMEM);
-
- powergate->id = info->id;
- powergate->bpmp = bpmp;
-
- powergate->genpd.name = kstrdup(info->name, GFP_KERNEL);
- powergate->genpd.power_on = tegra_powergate_power_on;
- powergate->genpd.power_off = tegra_powergate_power_off;
-
- err = pm_genpd_init(&powergate->genpd, NULL, off);
- if (err < 0) {
- kfree(powergate->genpd.name);
- return ERR_PTR(err);
- }
-
- return powergate;
-}
-
-static void tegra_powergate_remove(struct tegra_powergate *powergate)
-{
- struct generic_pm_domain *genpd = &powergate->genpd;
- struct tegra_bpmp *bpmp = powergate->bpmp;
- int err;
-
- err = pm_genpd_remove(genpd);
- if (err < 0)
- dev_err(bpmp->dev, "failed to remove power domain %s: %d\n",
- genpd->name, err);
-
- kfree(genpd->name);
-}
-
-static int
-tegra_bpmp_probe_powergates(struct tegra_bpmp *bpmp,
- struct tegra_powergate_info **powergatesp)
-{
- struct tegra_powergate_info *powergates;
- unsigned int max_id, id, count = 0;
- unsigned int num_holes = 0;
- int err;
-
- err = tegra_bpmp_powergate_get_max_id(bpmp);
- if (err < 0)
- return err;
-
- max_id = err;
-
- dev_dbg(bpmp->dev, "maximum powergate ID: %u\n", max_id);
-
- powergates = kcalloc(max_id + 1, sizeof(*powergates), GFP_KERNEL);
- if (!powergates)
- return -ENOMEM;
-
- for (id = 0; id <= max_id; id++) {
- struct tegra_powergate_info *info = &powergates[count];
-
- info->name = tegra_bpmp_powergate_get_name(bpmp, id);
- if (!info->name || info->name[0] == '\0') {
- num_holes++;
- continue;
- }
-
- info->id = id;
- count++;
- }
-
- dev_dbg(bpmp->dev, "holes: %u\n", num_holes);
-
- *powergatesp = powergates;
-
- return count;
-}
-
-static int tegra_bpmp_add_powergates(struct tegra_bpmp *bpmp,
- struct tegra_powergate_info *powergates,
- unsigned int count)
-{
- struct genpd_onecell_data *genpd = &bpmp->genpd;
- struct generic_pm_domain **domains;
- struct tegra_powergate *powergate;
- unsigned int i;
- int err;
-
- domains = kcalloc(count, sizeof(*domains), GFP_KERNEL);
- if (!domains)
- return -ENOMEM;
-
- for (i = 0; i < count; i++) {
- powergate = tegra_powergate_add(bpmp, &powergates[i]);
- if (IS_ERR(powergate)) {
- err = PTR_ERR(powergate);
- goto remove;
- }
-
- dev_dbg(bpmp->dev, "added power domain %s\n",
- powergate->genpd.name);
- domains[i] = &powergate->genpd;
- }
-
- genpd->num_domains = count;
- genpd->domains = domains;
-
- return 0;
-
-remove:
- while (i--) {
- powergate = to_tegra_powergate(domains[i]);
- tegra_powergate_remove(powergate);
- }
-
- kfree(domains);
- return err;
-}
-
-static void tegra_bpmp_remove_powergates(struct tegra_bpmp *bpmp)
-{
- struct genpd_onecell_data *genpd = &bpmp->genpd;
- unsigned int i = genpd->num_domains;
- struct tegra_powergate *powergate;
-
- while (i--) {
- dev_dbg(bpmp->dev, "removing power domain %s\n",
- genpd->domains[i]->name);
- powergate = to_tegra_powergate(genpd->domains[i]);
- tegra_powergate_remove(powergate);
- }
-}
-
-static struct generic_pm_domain *
-tegra_powergate_xlate(struct of_phandle_args *spec, void *data)
-{
- struct generic_pm_domain *domain = ERR_PTR(-ENOENT);
- struct genpd_onecell_data *genpd = data;
- unsigned int i;
-
- for (i = 0; i < genpd->num_domains; i++) {
- struct tegra_powergate *powergate;
-
- powergate = to_tegra_powergate(genpd->domains[i]);
- if (powergate->id == spec->args[0]) {
- domain = &powergate->genpd;
- break;
- }
- }
-
- return domain;
-}
-
-int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp)
-{
- struct device_node *np = bpmp->dev->of_node;
- struct tegra_powergate_info *powergates;
- struct device *dev = bpmp->dev;
- unsigned int count, i;
- int err;
-
- err = tegra_bpmp_probe_powergates(bpmp, &powergates);
- if (err < 0)
- return err;
-
- count = err;
-
- dev_dbg(dev, "%u power domains probed\n", count);
-
- err = tegra_bpmp_add_powergates(bpmp, powergates, count);
- if (err < 0)
- goto free;
-
- bpmp->genpd.xlate = tegra_powergate_xlate;
-
- err = of_genpd_add_provider_onecell(np, &bpmp->genpd);
- if (err < 0) {
- dev_err(dev, "failed to add power domain provider: %d\n", err);
- tegra_bpmp_remove_powergates(bpmp);
- }
-
-free:
- for (i = 0; i < count; i++)
- kfree(powergates[i].name);
-
- kfree(powergates);
- return err;
-}
projects / linux.git / commitdiff