| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2021 Raffaele Tranquillini <raffaele.tranquillini@gmail.com> |
| * |
| * Generated using linux-mdss-dsi-panel-driver-generator from Lineage OS device tree: |
| * https://github.com/LineageOS/android_kernel_xiaomi_msm8996/blob/lineage-18.1/arch/arm/boot/dts/qcom/a1-msm8996-mtp.dtsi |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| |
| #include <video/mipi_display.h> |
| |
| #include <drm/drm_mipi_dsi.h> |
| #include <drm/drm_modes.h> |
| #include <drm/drm_panel.h> |
| |
| struct jdi_fhd_r63452 { |
| struct drm_panel panel; |
| struct mipi_dsi_device *dsi; |
| struct gpio_desc *reset_gpio; |
| bool prepared; |
| }; |
| |
| static inline struct jdi_fhd_r63452 *to_jdi_fhd_r63452(struct drm_panel *panel) |
| { |
| return container_of(panel, struct jdi_fhd_r63452, panel); |
| } |
| |
| #define dsi_generic_write_seq(dsi, seq...) do { \ |
| static const u8 d[] = { seq }; \ |
| int ret; \ |
| ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \ |
| if (ret < 0) \ |
| return ret; \ |
| } while (0) |
| |
| #define dsi_dcs_write_seq(dsi, seq...) do { \ |
| static const u8 d[] = { seq }; \ |
| int ret; \ |
| ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \ |
| if (ret < 0) \ |
| return ret; \ |
| } while (0) |
| |
| static void jdi_fhd_r63452_reset(struct jdi_fhd_r63452 *ctx) |
| { |
| gpiod_set_value_cansleep(ctx->reset_gpio, 0); |
| usleep_range(10000, 11000); |
| gpiod_set_value_cansleep(ctx->reset_gpio, 1); |
| usleep_range(1000, 2000); |
| gpiod_set_value_cansleep(ctx->reset_gpio, 0); |
| usleep_range(10000, 11000); |
| } |
| |
| static int jdi_fhd_r63452_on(struct jdi_fhd_r63452 *ctx) |
| { |
| struct mipi_dsi_device *dsi = ctx->dsi; |
| struct device *dev = &dsi->dev; |
| int ret; |
| |
| dsi->mode_flags |= MIPI_DSI_MODE_LPM; |
| |
| dsi_generic_write_seq(dsi, 0xb0, 0x00); |
| dsi_generic_write_seq(dsi, 0xd6, 0x01); |
| dsi_generic_write_seq(dsi, 0xec, |
| 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b, |
| 0x13, 0x15, 0x68, 0x0b, 0xb5); |
| dsi_generic_write_seq(dsi, 0xb0, 0x03); |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 0x0437); |
| 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, 0x077f); |
| if (ret < 0) { |
| dev_err(dev, "Failed to set page address: %d\n", ret); |
| return ret; |
| } |
| |
| ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0x0000); |
| if (ret < 0) { |
| dev_err(dev, "Failed to set tear scanline: %d\n", ret); |
| return ret; |
| } |
| |
| ret = mipi_dsi_dcs_set_display_brightness(dsi, 0x00ff); |
| if (ret < 0) { |
| dev_err(dev, "Failed to set display brightness: %d\n", ret); |
| return ret; |
| } |
| |
| dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x24); |
| dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); |
| dsi_dcs_write_seq(dsi, MIPI_DCS_SET_CABC_MIN_BRIGHTNESS, 0x00); |
| dsi_dcs_write_seq(dsi, 0x84, 0x00); |
| |
| 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(20); |
| |
| 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(80); |
| |
| dsi_generic_write_seq(dsi, 0xb0, 0x04); |
| dsi_dcs_write_seq(dsi, 0x84, 0x00); |
| dsi_generic_write_seq(dsi, 0xc8, 0x11); |
| dsi_generic_write_seq(dsi, 0xb0, 0x03); |
| |
| return 0; |
| } |
| |
| static int jdi_fhd_r63452_off(struct jdi_fhd_r63452 *ctx) |
| { |
| struct mipi_dsi_device *dsi = ctx->dsi; |
| struct device *dev = &dsi->dev; |
| int ret; |
| |
| dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; |
| |
| dsi_generic_write_seq(dsi, 0xb0, 0x00); |
| dsi_generic_write_seq(dsi, 0xd6, 0x01); |
| dsi_generic_write_seq(dsi, 0xec, |
| 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b, |
| 0x13, 0x15, 0x68, 0x0b, 0x95); |
| dsi_generic_write_seq(dsi, 0xb0, 0x03); |
| |
| 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(120); |
| |
| return 0; |
| } |
| |
| static int jdi_fhd_r63452_prepare(struct drm_panel *panel) |
| { |
| struct jdi_fhd_r63452 *ctx = to_jdi_fhd_r63452(panel); |
| struct device *dev = &ctx->dsi->dev; |
| int ret; |
| |
| if (ctx->prepared) |
| return 0; |
| |
| jdi_fhd_r63452_reset(ctx); |
| |
| ret = jdi_fhd_r63452_on(ctx); |
| if (ret < 0) { |
| dev_err(dev, "Failed to initialize panel: %d\n", ret); |
| gpiod_set_value_cansleep(ctx->reset_gpio, 1); |
| return ret; |
| } |
| |
| ctx->prepared = true; |
| return 0; |
| } |
| |
| static int jdi_fhd_r63452_unprepare(struct drm_panel *panel) |
| { |
| struct jdi_fhd_r63452 *ctx = to_jdi_fhd_r63452(panel); |
| struct device *dev = &ctx->dsi->dev; |
| int ret; |
| |
| if (!ctx->prepared) |
| return 0; |
| |
| ret = jdi_fhd_r63452_off(ctx); |
| if (ret < 0) |
| dev_err(dev, "Failed to un-initialize panel: %d\n", ret); |
| |
| gpiod_set_value_cansleep(ctx->reset_gpio, 1); |
| |
| ctx->prepared = false; |
| return 0; |
| } |
| |
| static const struct drm_display_mode jdi_fhd_r63452_mode = { |
| .clock = (1080 + 120 + 16 + 40) * (1920 + 4 + 2 + 4) * 60 / 1000, |
| .hdisplay = 1080, |
| .hsync_start = 1080 + 120, |
| .hsync_end = 1080 + 120 + 16, |
| .htotal = 1080 + 120 + 16 + 40, |
| .vdisplay = 1920, |
| .vsync_start = 1920 + 4, |
| .vsync_end = 1920 + 4 + 2, |
| .vtotal = 1920 + 4 + 2 + 4, |
| .width_mm = 64, |
| .height_mm = 114, |
| }; |
| |
| static int jdi_fhd_r63452_get_modes(struct drm_panel *panel, |
| struct drm_connector *connector) |
| { |
| struct drm_display_mode *mode; |
| |
| mode = drm_mode_duplicate(connector->dev, &jdi_fhd_r63452_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 jdi_fhd_r63452_panel_funcs = { |
| .prepare = jdi_fhd_r63452_prepare, |
| .unprepare = jdi_fhd_r63452_unprepare, |
| .get_modes = jdi_fhd_r63452_get_modes, |
| }; |
| |
| static int jdi_fhd_r63452_probe(struct mipi_dsi_device *dsi) |
| { |
| struct device *dev = &dsi->dev; |
| struct jdi_fhd_r63452 *ctx; |
| int ret; |
| |
| ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) |
| return -ENOMEM; |
| |
| 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_BURST | |
| MIPI_DSI_CLOCK_NON_CONTINUOUS; |
| |
| drm_panel_init(&ctx->panel, dev, &jdi_fhd_r63452_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); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static void jdi_fhd_r63452_remove(struct mipi_dsi_device *dsi) |
| { |
| struct jdi_fhd_r63452 *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 jdi_fhd_r63452_of_match[] = { |
| { .compatible = "jdi,fhd-r63452" }, |
| { /* sentinel */ } |
| }; |
| MODULE_DEVICE_TABLE(of, jdi_fhd_r63452_of_match); |
| |
| static struct mipi_dsi_driver jdi_fhd_r63452_driver = { |
| .probe = jdi_fhd_r63452_probe, |
| .remove = jdi_fhd_r63452_remove, |
| .driver = { |
| .name = "panel-jdi-fhd-r63452", |
| .of_match_table = jdi_fhd_r63452_of_match, |
| }, |
| }; |
| module_mipi_dsi_driver(jdi_fhd_r63452_driver); |
| |
| MODULE_AUTHOR("Raffaele Tranquillini <raffaele.tranquillini@gmail.com>"); |
| MODULE_DESCRIPTION("DRM driver for JDI FHD R63452 DSI panel, command mode"); |
| MODULE_LICENSE("GPL v2"); |