From 779679d3c1640d8f45c75b1e15831180ab2712e2 Mon Sep 17 00:00:00 2001 From: Dzmitry Sankouski Date: Sun, 6 Oct 2024 21:18:21 +0300 Subject: [PATCH] drm/panel: Add support for S6E3HA8 panel driver Add support for MIPI-DSI based S6E3HA8 AMOLED panel driver. This panel has 1440x2960 resolution, 5.8-inch physical size, and can be found in starqltechn device. Brightness regulation is not yet supported. Reviewed-by: Neil Armstrong Signed-off-by: Dzmitry Sankouski Link: https://lore.kernel.org/r/20241006-starqltechn_integration_upstream-v6-3-8336b9cd6c34@gmail.com Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20241006-starqltechn_integration_upstream-v6-3-8336b9cd6c34@gmail.com --- MAINTAINERS | 1 + drivers/gpu/drm/panel/Kconfig | 7 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c | 342 ++++++++++++++++++ 4 files changed, 351 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c diff --git a/MAINTAINERS b/MAINTAINERS index b86e29f443f2..365fb0ce5117 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7387,6 +7387,7 @@ DRM DRIVER FOR SAMSUNG S6E3HA8 PANELS M: Dzmitry Sankouski S: Maintained F: Documentation/devicetree/bindings/display/panel/samsung,s6e3ha8.yaml +F: drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c DRM DRIVER FOR SITRONIX ST7586 PANELS M: David Lechner diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 1077fd2307d4..7d3c9cbfe835 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -689,6 +689,13 @@ config DRM_PANEL_SAMSUNG_S6E3HA2 depends on BACKLIGHT_CLASS_DEVICE select VIDEOMODE_HELPERS +config DRM_PANEL_SAMSUNG_S6E3HA8 + tristate "Samsung S6E3HA8 DSI video mode panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select VIDEOMODE_HELPERS + config DRM_PANEL_SAMSUNG_S6E63J0X03 tristate "Samsung S6E63J0X03 DSI command mode panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 987a08702410..8ee28f5a2213 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -70,6 +70,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D27A1) += panel-samsung-s6d27a1.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D7AA0) += panel-samsung-s6d7aa0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3FA7) += panel-samsung-s6e3fa7.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA8) += panel-samsung-s6e3ha8.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0) += panel-samsung-s6e63m0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0_SPI) += panel-samsung-s6e63m0-spi.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c new file mode 100644 index 000000000000..76b5a6ea610d --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c @@ -0,0 +1,342 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: +// Copyright (c) 2013, The Linux Foundation. All rights reserved. +// Copyright (c) 2024 Dzmitry Sankouski + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +struct s6e3ha8 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct drm_dsc_config dsc; + struct gpio_desc *reset_gpio; + struct regulator_bulk_data *supplies; +}; + +const struct regulator_bulk_data s6e3ha8_supplies[] = { + { .supply = "vdd3" }, + { .supply = "vci" }, + { .supply = "vddr" }, +}; + +static inline +struct s6e3ha8 *to_s6e3ha8_amb577px01_wqhd(struct drm_panel *panel) +{ + return container_of(panel, struct s6e3ha8, panel); +} + +#define s6e3ha8_test_key_on_lvl2(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0xf0, 0x5a, 0x5a) +#define s6e3ha8_test_key_off_lvl2(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0xf0, 0xa5, 0xa5) +#define s6e3ha8_test_key_on_lvl3(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0xfc, 0x5a, 0x5a) +#define s6e3ha8_test_key_off_lvl3(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0xfc, 0xa5, 0xa5) +#define s6e3ha8_test_key_on_lvl1(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0x9f, 0xa5, 0xa5) +#define s6e3ha8_test_key_off_lvl1(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0x9f, 0x5a, 0x5a) +#define s6e3ha8_afc_off(ctx) \ + mipi_dsi_dcs_write_seq_multi(ctx, 0xe2, 0x00, 0x00) + +static void s6e3ha8_amb577px01_wqhd_reset(struct s6e3ha8 *priv) +{ + gpiod_set_value_cansleep(priv->reset_gpio, 1); + usleep_range(5000, 6000); + gpiod_set_value_cansleep(priv->reset_gpio, 0); + usleep_range(5000, 6000); + gpiod_set_value_cansleep(priv->reset_gpio, 1); + usleep_range(5000, 6000); +} + +static int s6e3ha8_amb577px01_wqhd_on(struct s6e3ha8 *priv) +{ + struct mipi_dsi_device *dsi = priv->dsi; + struct mipi_dsi_multi_context ctx = { .dsi = dsi }; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + s6e3ha8_test_key_on_lvl1(&ctx); + + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_compression_mode_multi(&ctx, true); + s6e3ha8_test_key_off_lvl2(&ctx); + + mipi_dsi_dcs_exit_sleep_mode_multi(&ctx); + usleep_range(5000, 6000); + + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf2, 0x13); + s6e3ha8_test_key_off_lvl2(&ctx); + usleep_range(10000, 11000); + + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf2, 0x13); + s6e3ha8_test_key_off_lvl2(&ctx); + + /* OMOK setting 1 (Initial setting) - Scaler Latch Setting Guide */ + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xb0, 0x07); + /* latch setting 1 : Scaler on/off & address setting & PPS setting -> Image update latch */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf2, 0x3c, 0x10); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xb0, 0x0b); + /* latch setting 2 : Ratio change mode -> Image update latch */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf2, 0x30); + /* OMOK setting 2 - Seamless setting guide : WQHD */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0x2a, 0x00, 0x00, 0x05, 0x9f); /* CASET */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0x2b, 0x00, 0x00, 0x0b, 0x8f); /* PASET */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xba, 0x01); /* scaler setup : scaler off */ + s6e3ha8_test_key_off_lvl2(&ctx); + + mipi_dsi_dcs_write_seq_multi(&ctx, 0x35, 0x00); /* TE Vsync ON */ + + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xed, 0x4c); /* ERR_FG */ + s6e3ha8_test_key_off_lvl2(&ctx); + + s6e3ha8_test_key_on_lvl3(&ctx); + /* FFC Setting 897.6Mbps */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xc5, 0x0d, 0x10, 0xb4, 0x3e, 0x01); + s6e3ha8_test_key_off_lvl3(&ctx); + + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xb9, + 0x00, 0xb0, 0x81, 0x09, 0x00, 0x00, 0x00, + 0x11, 0x03); /* TSP HSYNC Setting */ + s6e3ha8_test_key_off_lvl2(&ctx); + + s6e3ha8_test_key_on_lvl2(&ctx); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xb0, 0x03); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf6, 0x43); + s6e3ha8_test_key_off_lvl2(&ctx); + + s6e3ha8_test_key_on_lvl2(&ctx); + /* Brightness condition set */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xca, + 0x07, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x00, 0x00, 0x00); + mipi_dsi_dcs_write_seq_multi(&ctx, 0xb1, 0x00, 0x0c); /* AID Set : 0% */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xb5, + 0x19, 0xdc, 0x16, 0x01, 0x34, 0x67, 0x9a, + 0xcd, 0x01, 0x22, 0x33, 0x44, 0x00, 0x00, + 0x05, 0x55, 0xcc, 0x0c, 0x01, 0x11, 0x11, + 0x10); /* MPS/ELVSS Setting */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf4, 0xeb, 0x28); /* VINT */ + mipi_dsi_dcs_write_seq_multi(&ctx, 0xf7, 0x03); /* Gamma, LTPS(AID) update */ + s6e3ha8_test_key_off_lvl2(&ctx); + + s6e3ha8_test_key_off_lvl1(&ctx); + + return ctx.accum_err; +} + +static int s6e3ha8_enable(struct drm_panel *panel) +{ + struct s6e3ha8 *priv = to_s6e3ha8_amb577px01_wqhd(panel); + struct mipi_dsi_device *dsi = priv->dsi; + struct mipi_dsi_multi_context ctx = { .dsi = dsi }; + + s6e3ha8_test_key_on_lvl1(&ctx); + mipi_dsi_dcs_set_display_on_multi(&ctx); + s6e3ha8_test_key_off_lvl1(&ctx); + + return ctx.accum_err; +} + +static int s6e3ha8_disable(struct drm_panel *panel) +{ + struct s6e3ha8 *priv = to_s6e3ha8_amb577px01_wqhd(panel); + struct mipi_dsi_device *dsi = priv->dsi; + struct mipi_dsi_multi_context ctx = { .dsi = dsi }; + + s6e3ha8_test_key_on_lvl1(&ctx); + mipi_dsi_dcs_set_display_off_multi(&ctx); + s6e3ha8_test_key_off_lvl1(&ctx); + mipi_dsi_msleep(&ctx, 20); + + s6e3ha8_test_key_on_lvl2(&ctx); + s6e3ha8_afc_off(&ctx); + s6e3ha8_test_key_off_lvl2(&ctx); + + mipi_dsi_msleep(&ctx, 160); + + return ctx.accum_err; +} + +static int s6e3ha8_amb577px01_wqhd_prepare(struct drm_panel *panel) +{ + struct s6e3ha8 *priv = to_s6e3ha8_amb577px01_wqhd(panel); + struct mipi_dsi_device *dsi = priv->dsi; + struct mipi_dsi_multi_context ctx = { .dsi = dsi }; + struct drm_dsc_picture_parameter_set pps; + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(s6e3ha8_supplies), priv->supplies); + if (ret < 0) + return ret; + mipi_dsi_msleep(&ctx, 120); + s6e3ha8_amb577px01_wqhd_reset(priv); + + ret = s6e3ha8_amb577px01_wqhd_on(priv); + if (ret < 0) { + gpiod_set_value_cansleep(priv->reset_gpio, 1); + goto err; + } + + drm_dsc_pps_payload_pack(&pps, &priv->dsc); + + s6e3ha8_test_key_on_lvl1(&ctx); + mipi_dsi_picture_parameter_set_multi(&ctx, &pps); + s6e3ha8_test_key_off_lvl1(&ctx); + + mipi_dsi_msleep(&ctx, 28); + + return ctx.accum_err; +err: + regulator_bulk_disable(ARRAY_SIZE(s6e3ha8_supplies), priv->supplies); + return ret; +} + +static int s6e3ha8_amb577px01_wqhd_unprepare(struct drm_panel *panel) +{ + struct s6e3ha8 *priv = to_s6e3ha8_amb577px01_wqhd(panel); + + return regulator_bulk_disable(ARRAY_SIZE(s6e3ha8_supplies), priv->supplies); +} + +static const struct drm_display_mode s6e3ha8_amb577px01_wqhd_mode = { + .clock = (1440 + 116 + 44 + 120) * (2960 + 120 + 80 + 124) * 60 / 1000, + .hdisplay = 1440, + .hsync_start = 1440 + 116, + .hsync_end = 1440 + 116 + 44, + .htotal = 1440 + 116 + 44 + 120, + .vdisplay = 2960, + .vsync_start = 2960 + 120, + .vsync_end = 2960 + 120 + 80, + .vtotal = 2960 + 120 + 80 + 124, + .width_mm = 64, + .height_mm = 132, +}; + +static int s6e3ha8_amb577px01_wqhd_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, &s6e3ha8_amb577px01_wqhd_mode); +} + +static const struct drm_panel_funcs s6e3ha8_amb577px01_wqhd_panel_funcs = { + .prepare = s6e3ha8_amb577px01_wqhd_prepare, + .unprepare = s6e3ha8_amb577px01_wqhd_unprepare, + .get_modes = s6e3ha8_amb577px01_wqhd_get_modes, + .enable = s6e3ha8_enable, + .disable = s6e3ha8_disable, +}; + +static int s6e3ha8_amb577px01_wqhd_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct s6e3ha8 *priv; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(s6e3ha8_supplies), + s6e3ha8_supplies, + &priv->supplies); + if (ret < 0) { + dev_err(dev, "failed to get regulators: %d\n", ret); + return ret; + } + + priv->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(priv->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(priv->reset_gpio), + "Failed to get reset-gpios\n"); + + priv->dsi = dsi; + mipi_dsi_set_drvdata(dsi, priv); + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS | + MIPI_DSI_MODE_VIDEO_NO_HFP | MIPI_DSI_MODE_VIDEO_NO_HBP | + MIPI_DSI_MODE_VIDEO_NO_HSA | MIPI_DSI_MODE_NO_EOT_PACKET; + + drm_panel_init(&priv->panel, dev, &s6e3ha8_amb577px01_wqhd_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + priv->panel.prepare_prev_first = true; + + drm_panel_add(&priv->panel); + + /* This panel only supports DSC; unconditionally enable it */ + dsi->dsc = &priv->dsc; + + priv->dsc.dsc_version_major = 1; + priv->dsc.dsc_version_minor = 1; + + priv->dsc.slice_height = 40; + priv->dsc.slice_width = 720; + WARN_ON(1440 % priv->dsc.slice_width); + priv->dsc.slice_count = 1440 / priv->dsc.slice_width; + priv->dsc.bits_per_component = 8; + priv->dsc.bits_per_pixel = 8 << 4; /* 4 fractional bits */ + priv->dsc.block_pred_enable = true; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(dev, "Failed to attach to DSI host: %d\n", ret); + drm_panel_remove(&priv->panel); + return ret; + } + + return 0; +} + +static void s6e3ha8_amb577px01_wqhd_remove(struct mipi_dsi_device *dsi) +{ + struct s6e3ha8 *priv = 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(&priv->panel); +} + +static const struct of_device_id s6e3ha8_amb577px01_wqhd_of_match[] = { + { .compatible = "samsung,s6e3ha8" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, s6e3ha8_amb577px01_wqhd_of_match); + +static struct mipi_dsi_driver s6e3ha8_amb577px01_wqhd_driver = { + .probe = s6e3ha8_amb577px01_wqhd_probe, + .remove = s6e3ha8_amb577px01_wqhd_remove, + .driver = { + .name = "panel-s6e3ha8", + .of_match_table = s6e3ha8_amb577px01_wqhd_of_match, + }, +}; +module_mipi_dsi_driver(s6e3ha8_amb577px01_wqhd_driver); + +MODULE_AUTHOR("Dzmitry Sankouski "); +MODULE_DESCRIPTION("DRM driver for S6E3HA8 panel"); +MODULE_LICENSE("GPL");