--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022 Konrad Dybcio <konrad.dybcio@somainline.org>
+ *
+ * Generated with linux-mdss-dsi-panel-driver-generator with a
+ * substantial amount of manual adjustments.
+ *
+ * SONY Downstream kernel calls this one:
+ * - "JDI ID3" for Akari (XZ2)
+ * - "JDI ID4" for Apollo (XZ2 Compact)
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+enum {
+ TYPE_TAMA_60HZ,
+ /*
+ * Leaving room for expansion - SONY very often uses
+ * *truly reliably* overclockable panels on their flagships!
+ */
+};
+
+struct sony_td4353_jdi {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+ struct regulator_bulk_data supplies[3];
+ struct gpio_desc *panel_reset_gpio;
+ struct gpio_desc *touch_reset_gpio;
+ bool prepared;
+ int type;
+};
+
+static inline struct sony_td4353_jdi *to_sony_td4353_jdi(struct drm_panel *panel)
+{
+ return container_of(panel, struct sony_td4353_jdi, panel);
+}
+
+static int sony_td4353_jdi_on(struct sony_td4353_jdi *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 1080 - 1);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set column address: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2160 - 1);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set page address: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set tear scanline: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set tear on: %d\n", ret);
+ return ret;
+ }
+
+ mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
+
+ ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set pixel format: %d\n", ret);
+ return ret;
+ }
+
+ mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_PARTIAL_ROWS,
+ 0x00, 0x00, 0x08, 0x6f);
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(70);
+
+ mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START);
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to turn display on: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int sony_td4353_jdi_off(struct sony_td4353_jdi *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set display off: %d\n", ret);
+ return ret;
+ }
+ msleep(22);
+
+ ret = mipi_dsi_dcs_set_tear_off(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set tear off: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+ return ret;
+ }
+ msleep(80);
+
+ return 0;
+}
+
+static void sony_td4353_assert_reset_gpios(struct sony_td4353_jdi *ctx, int mode)
+{
+ gpiod_set_value_cansleep(ctx->touch_reset_gpio, mode);
+ gpiod_set_value_cansleep(ctx->panel_reset_gpio, mode);
+ usleep_range(5000, 5100);
+}
+
+static int sony_td4353_jdi_prepare(struct drm_panel *panel)
+{
+ struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (ctx->prepared)
+ return 0;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable regulators: %d\n", ret);
+ return ret;
+ }
+
+ msleep(100);
+
+ sony_td4353_assert_reset_gpios(ctx, 1);
+
+ ret = sony_td4353_jdi_on(ctx);
+ if (ret < 0) {
+ dev_err(dev, "Failed to power on panel: %d\n", ret);
+ sony_td4353_assert_reset_gpios(ctx, 0);
+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+ return ret;
+ }
+
+ ctx->prepared = true;
+ return 0;
+}
+
+static int sony_td4353_jdi_unprepare(struct drm_panel *panel)
+{
+ struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
+ struct device *dev = &ctx->dsi->dev;
+ int ret;
+
+ if (!ctx->prepared)
+ return 0;
+
+ ret = sony_td4353_jdi_off(ctx);
+ if (ret < 0)
+ dev_err(dev, "Failed to power off panel: %d\n", ret);
+
+ sony_td4353_assert_reset_gpios(ctx, 0);
+ regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+
+ ctx->prepared = false;
+ return 0;
+}
+
+static const struct drm_display_mode sony_td4353_jdi_mode_tama_60hz = {
+ .clock = (1080 + 4 + 8 + 8) * (2160 + 259 + 8 + 8) * 60 / 1000,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 4,
+ .hsync_end = 1080 + 4 + 8,
+ .htotal = 1080 + 4 + 8 + 8,
+ .vdisplay = 2160,
+ .vsync_start = 2160 + 259,
+ .vsync_end = 2160 + 259 + 8,
+ .vtotal = 2160 + 259 + 8 + 8,
+ .width_mm = 64,
+ .height_mm = 128,
+};
+
+static int sony_td4353_jdi_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct sony_td4353_jdi *ctx = to_sony_td4353_jdi(panel);
+ struct drm_display_mode *mode = NULL;
+
+ if (ctx->type == TYPE_TAMA_60HZ)
+ mode = drm_mode_duplicate(connector->dev, &sony_td4353_jdi_mode_tama_60hz);
+ else
+ return -EINVAL;
+
+ if (!mode)
+ return -ENOMEM;
+
+ drm_mode_set_name(mode);
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
+ drm_mode_probed_add(connector, mode);
+
+ return 1;
+}
+
+static const struct drm_panel_funcs sony_td4353_jdi_panel_funcs = {
+ .prepare = sony_td4353_jdi_prepare,
+ .unprepare = sony_td4353_jdi_unprepare,
+ .get_modes = sony_td4353_jdi_get_modes,
+};
+
+static int sony_td4353_jdi_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct sony_td4353_jdi *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->type = (uintptr_t)of_device_get_match_data(dev);
+
+ ctx->supplies[0].supply = "vddio";
+ ctx->supplies[1].supply = "vsp";
+ ctx->supplies[2].supply = "vsn";
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
+ ctx->supplies);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "Failed to get regulators\n");
+
+ ctx->panel_reset_gpio = devm_gpiod_get(dev, "panel-reset", GPIOD_ASIS);
+ if (IS_ERR(ctx->panel_reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(ctx->panel_reset_gpio),
+ "Failed to get panel-reset-gpios\n");
+
+ ctx->touch_reset_gpio = devm_gpiod_get(dev, "touch-reset", GPIOD_ASIS);
+ if (IS_ERR(ctx->touch_reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(ctx->touch_reset_gpio),
+ "Failed to get touch-reset-gpios\n");
+
+ ctx->dsi = dsi;
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+ drm_panel_init(&ctx->panel, dev, &sony_td4353_jdi_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+
+ ret = drm_panel_of_backlight(&ctx->panel);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to get backlight\n");
+
+ drm_panel_add(&ctx->panel);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret < 0) {
+ dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
+ drm_panel_remove(&ctx->panel);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void sony_td4353_jdi_remove(struct mipi_dsi_device *dsi)
+{
+ struct sony_td4353_jdi *ctx = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ ret = mipi_dsi_detach(dsi);
+ if (ret < 0)
+ dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
+
+ drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id sony_td4353_jdi_of_match[] = {
+ { .compatible = "sony,td4353-jdi-tama", .data = (void *)TYPE_TAMA_60HZ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, sony_td4353_jdi_of_match);
+
+static struct mipi_dsi_driver sony_td4353_jdi_driver = {
+ .probe = sony_td4353_jdi_probe,
+ .remove = sony_td4353_jdi_remove,
+ .driver = {
+ .name = "panel-sony-td4353-jdi",
+ .of_match_table = sony_td4353_jdi_of_match,
+ },
+};
+module_mipi_dsi_driver(sony_td4353_jdi_driver);
+
+MODULE_AUTHOR("Konrad Dybcio <konrad.dybcio@somainline.org>");
+MODULE_DESCRIPTION("DRM panel driver for SONY Xperia XZ2/XZ2c JDI panel");
+MODULE_LICENSE("GPL");
projects / linux.git / commitdiff