From 72a36f7a0239dbc5b52526d11d28da0f37228712 Mon Sep 17 00:00:00 2001 From: Xilin Wu Date: Mon, 1 Jan 2024 22:34:24 +0800 Subject: [PATCH] drm/panel: Add WIP panel driver for AYN Odin 2 Signed-off-by: Xilin Wu --- drivers/gpu/drm/panel/Kconfig | 11 + drivers/gpu/drm/panel/Makefile | 1 + .../gpu/drm/panel/panel-synaptics-td4328.c | 246 ++++++++++++++++++ 3 files changed, 258 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-synaptics-td4328.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 5b15d02948367..922605ba77549 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -825,6 +825,16 @@ config DRM_PANEL_SYNAPTICS_R63353 Say Y if you want to enable support for panels based on the Synaptics R63353 controller. +config DRM_PANEL_SYNAPTICS_TD4328 + tristate "Synaptics TD4328-based panels" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select DRM_KMS_HELPER + help + Say Y if you want to enable support for panels based on the + Synaptics TD4328 controller. + config DRM_PANEL_TDO_TL070WSH30 tristate "TDO TL070WSH30 DSI panel" depends on OF @@ -915,4 +925,5 @@ config DRM_PANEL_XINPENG_XPP055C272 Say Y here if you want to enable support for the Xinpeng XPP055C272 controller for 720x1280 LCD panels with MIPI/RGB/SPI system interfaces. + endmenu diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index f156d7fa0bccc..1e1c4632b0d62 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -79,6 +79,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o obj-$(CONFIG_DRM_PANEL_SYNAPTICS_R63353) += panel-synaptics-r63353.o +obj-$(CONFIG_DRM_PANEL_SYNAPTICS_TD4328) += panel-synaptics-td4328.o obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt35521.o diff --git a/drivers/gpu/drm/panel/panel-synaptics-td4328.c b/drivers/gpu/drm/panel/panel-synaptics-td4328.c new file mode 100644 index 0000000000000..0fb0ddd9373db --- /dev/null +++ b/drivers/gpu/drm/panel/panel-synaptics-td4328.c @@ -0,0 +1,227 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree. + * Copyright (c) 2024 Xilin Wu + * Copyright (c) 2024 Junhao Xie + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +struct td4328 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct regulator_bulk_data supplies[2]; + struct gpio_desc *reset_gpio; +}; + +static inline struct td4328 *to_td4328(struct drm_panel *panel) +{ + return container_of(panel, struct td4328, panel); +} + +static void td4328_reset(struct td4328 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 21000); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(10000, 21000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 21000); +} + +static int td4328_on(struct td4328 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x00); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb3, 0x31); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd6, 0x00); + + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 120); + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 20); + + return dsi_ctx.accum_err; +} + +static int td4328_off(struct td4328 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; + + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 50); + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 120); + + return dsi_ctx.accum_err; +} + +static int td4328_prepare(struct drm_panel *panel) +{ + struct td4328 *ctx = to_td4328(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + 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; + } + + td4328_reset(ctx); + + ret = td4328_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + return ret; + } + + return 0; +} + +static int td4328_unprepare(struct drm_panel *panel) +{ + struct td4328 *ctx = to_td4328(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + ret = td4328_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + + return 0; +} + +static const struct drm_display_mode td4328_mode = { + .clock = (1080 + 93 + 1 + 47) * (1920 + 40 + 2 + 60) * 60 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 93, + .hsync_end = 1080 + 93 + 1, + .htotal = 1080 + 93 + 1 + 47, + .vdisplay = 1920, + .vsync_start = 1920 + 40, + .vsync_end = 1920 + 40 + 2, + .vtotal = 1920 + 40 + 2 + 60, + .width_mm = 75, + .height_mm = 133, + .type = DRM_MODE_TYPE_DRIVER, +}; + +static int td4328_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, &td4328_mode); +} + +static enum drm_panel_orientation td4328_get_orientation(struct drm_panel *panel) +{ + return DRM_MODE_PANEL_ORIENTATION_RIGHT_UP; +} + +static const struct drm_panel_funcs td4328_panel_funcs = { + .prepare = td4328_prepare, + .disable = td4328_unprepare, + .get_modes = td4328_get_modes, + .get_orientation = td4328_get_orientation, +}; + +static int td4328_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct td4328 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->supplies[0].supply = "vddio"; + ctx->supplies[1].supply = "vdd"; + 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->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + 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_CLOCK_NON_CONTINUOUS; + + drm_panel_init(&ctx->panel, dev, &td4328_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first = true; + + 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_probe(dev, ret, "Failed to attach to DSI host\n"); + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static void td4328_remove(struct mipi_dsi_device *dsi) +{ + struct td4328 *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 td4328_of_match[] = { + { .compatible = "syna,td4328" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, td4328_of_match); + +static struct mipi_dsi_driver td4328_driver = { + .probe = td4328_probe, + .remove = td4328_remove, + .driver = { + .name = "panel-td4328", + .of_match_table = td4328_of_match, + }, +}; +module_mipi_dsi_driver(td4328_driver); + +MODULE_DESCRIPTION("DRM driver for td4328-equipped DSI panels"); +MODULE_LICENSE("GPL");