| // SPDX-License-Identifier: GPL-2.0-only |
| /* Copyright (c) 2021 Linaro Ltd. |
| * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: |
| * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/module.h> |
| #include <linux/of.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> |
| |
| struct sharp_ls060 { |
| struct drm_panel panel; |
| struct mipi_dsi_device *dsi; |
| struct regulator *vddi_supply; |
| struct regulator *vddh_supply; |
| struct regulator *avdd_supply; |
| struct regulator *avee_supply; |
| struct gpio_desc *reset_gpio; |
| bool prepared; |
| }; |
| |
| static inline struct sharp_ls060 *to_sharp_ls060(struct drm_panel *panel) |
| { |
| return container_of(panel, struct sharp_ls060, panel); |
| } |
| |
| static void sharp_ls060_reset(struct sharp_ls060 *ctx) |
| { |
| gpiod_set_value_cansleep(ctx->reset_gpio, 0); |
| usleep_range(10000, 11000); |
| gpiod_set_value_cansleep(ctx->reset_gpio, 1); |
| usleep_range(10000, 11000); |
| gpiod_set_value_cansleep(ctx->reset_gpio, 0); |
| usleep_range(10000, 11000); |
| } |
| |
| static int sharp_ls060_on(struct sharp_ls060 *ctx) |
| { |
| struct mipi_dsi_device *dsi = ctx->dsi; |
| struct device *dev = &dsi->dev; |
| int ret; |
| |
| dsi->mode_flags |= MIPI_DSI_MODE_LPM; |
| |
| mipi_dsi_dcs_write_seq(dsi, 0xbb, 0x13); |
| mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START); |
| |
| 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(120); |
| |
| ret = mipi_dsi_dcs_set_display_on(dsi); |
| if (ret < 0) { |
| dev_err(dev, "Failed to set display on: %d\n", ret); |
| return ret; |
| } |
| msleep(50); |
| |
| return 0; |
| } |
| |
| static int sharp_ls060_off(struct sharp_ls060 *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; |
| } |
| usleep_range(2000, 3000); |
| |
| 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(121); |
| |
| return 0; |
| } |
| |
| static int sharp_ls060_prepare(struct drm_panel *panel) |
| { |
| struct sharp_ls060 *ctx = to_sharp_ls060(panel); |
| struct device *dev = &ctx->dsi->dev; |
| int ret; |
| |
| if (ctx->prepared) |
| return 0; |
| |
| ret = regulator_enable(ctx->vddi_supply); |
| if (ret < 0) |
| return ret; |
| |
| ret = regulator_enable(ctx->avdd_supply); |
| if (ret < 0) |
| goto err_avdd; |
| |
| usleep_range(1000, 2000); |
| |
| ret = regulator_enable(ctx->avee_supply); |
| if (ret < 0) |
| goto err_avee; |
| |
| usleep_range(10000, 11000); |
| |
| ret = regulator_enable(ctx->vddh_supply); |
| if (ret < 0) |
| goto err_vddh; |
| |
| usleep_range(10000, 11000); |
| |
| sharp_ls060_reset(ctx); |
| |
| ret = sharp_ls060_on(ctx); |
| if (ret < 0) { |
| dev_err(dev, "Failed to initialize panel: %d\n", ret); |
| goto err_on; |
| } |
| |
| ctx->prepared = true; |
| |
| return 0; |
| |
| err_on: |
| regulator_disable(ctx->vddh_supply); |
| |
| usleep_range(10000, 11000); |
| |
| err_vddh: |
| regulator_disable(ctx->avee_supply); |
| |
| err_avee: |
| regulator_disable(ctx->avdd_supply); |
| |
| gpiod_set_value_cansleep(ctx->reset_gpio, 1); |
| |
| err_avdd: |
| regulator_disable(ctx->vddi_supply); |
| |
| return ret; |
| } |
| |
| static int sharp_ls060_unprepare(struct drm_panel *panel) |
| { |
| struct sharp_ls060 *ctx = to_sharp_ls060(panel); |
| struct device *dev = &ctx->dsi->dev; |
| int ret; |
| |
| if (!ctx->prepared) |
| return 0; |
| |
| ret = sharp_ls060_off(ctx); |
| if (ret < 0) |
| dev_err(dev, "Failed to un-initialize panel: %d\n", ret); |
| |
| regulator_disable(ctx->vddh_supply); |
| |
| usleep_range(10000, 11000); |
| |
| regulator_disable(ctx->avee_supply); |
| regulator_disable(ctx->avdd_supply); |
| |
| gpiod_set_value_cansleep(ctx->reset_gpio, 1); |
| |
| regulator_disable(ctx->vddi_supply); |
| |
| ctx->prepared = false; |
| return 0; |
| } |
| |
| static const struct drm_display_mode sharp_ls060_mode = { |
| .clock = (1080 + 96 + 16 + 64) * (1920 + 4 + 1 + 16) * 60 / 1000, |
| .hdisplay = 1080, |
| .hsync_start = 1080 + 96, |
| .hsync_end = 1080 + 96 + 16, |
| .htotal = 1080 + 96 + 16 + 64, |
| .vdisplay = 1920, |
| .vsync_start = 1920 + 4, |
| .vsync_end = 1920 + 4 + 1, |
| .vtotal = 1920 + 4 + 1 + 16, |
| .width_mm = 75, |
| .height_mm = 132, |
| }; |
| |
| static int sharp_ls060_get_modes(struct drm_panel *panel, |
| struct drm_connector *connector) |
| { |
| struct drm_display_mode *mode; |
| |
| mode = drm_mode_duplicate(connector->dev, &sharp_ls060_mode); |
| 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 sharp_ls060_panel_funcs = { |
| .prepare = sharp_ls060_prepare, |
| .unprepare = sharp_ls060_unprepare, |
| .get_modes = sharp_ls060_get_modes, |
| }; |
| |
| static int sharp_ls060_probe(struct mipi_dsi_device *dsi) |
| { |
| struct device *dev = &dsi->dev; |
| struct sharp_ls060 *ctx; |
| int ret; |
| |
| ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) |
| return -ENOMEM; |
| |
| ctx->vddi_supply = devm_regulator_get(dev, "vddi"); |
| if (IS_ERR(ctx->vddi_supply)) |
| return PTR_ERR(ctx->vddi_supply); |
| |
| ctx->vddh_supply = devm_regulator_get(dev, "vddh"); |
| if (IS_ERR(ctx->vddh_supply)) |
| return PTR_ERR(ctx->vddh_supply); |
| |
| ctx->avdd_supply = devm_regulator_get(dev, "avdd"); |
| if (IS_ERR(ctx->avdd_supply)) |
| return PTR_ERR(ctx->avdd_supply); |
| |
| ctx->avee_supply = devm_regulator_get(dev, "avee"); |
| if (IS_ERR(ctx->avee_supply)) |
| return PTR_ERR(ctx->avee_supply); |
| |
| ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); |
| if (IS_ERR(ctx->reset_gpio)) |
| return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), |
| "Failed to get 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_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | |
| MIPI_DSI_MODE_NO_EOT_PACKET | |
| MIPI_DSI_CLOCK_NON_CONTINUOUS; |
| |
| drm_panel_init(&ctx->panel, dev, &sharp_ls060_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 sharp_ls060_remove(struct mipi_dsi_device *dsi) |
| { |
| struct sharp_ls060 *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 sharp_ls060t1sx01_of_match[] = { |
| { .compatible = "sharp,ls060t1sx01" }, |
| { /* sentinel */ } |
| }; |
| MODULE_DEVICE_TABLE(of, sharp_ls060t1sx01_of_match); |
| |
| static struct mipi_dsi_driver sharp_ls060_driver = { |
| .probe = sharp_ls060_probe, |
| .remove = sharp_ls060_remove, |
| .driver = { |
| .name = "panel-sharp-ls060t1sx01", |
| .of_match_table = sharp_ls060t1sx01_of_match, |
| }, |
| }; |
| module_mipi_dsi_driver(sharp_ls060_driver); |
| |
| MODULE_AUTHOR("Dmitry Baryshkov <dmitry.baryshkov@linaro.org>"); |
| MODULE_DESCRIPTION("DRM driver for Sharp LS060T1SX01 1080p video mode dsi panel"); |
| MODULE_LICENSE("GPL v2"); |