Adds a dedicated driver for the Samsung s6e3fc2x01 panel used in OnePlus 6T smartphones which was previously driven by the sofef00 panel driver
Signed-off-by: Nia Espera <a...@riseup.net> Reviewed-by: Caleb Connolly <ca...@connolly.tech> --- MAINTAINERS | 5 + drivers/gpu/drm/panel/Kconfig | 12 + drivers/gpu/drm/panel/Makefile | 1 + .../gpu/drm/panel/panel-samsung-s6e3fc2x01.c | 388 ++++++++++++++++++ 4 files changed, 406 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3fc2x01.c diff --git a/MAINTAINERS b/MAINTAINERS index 72b9654f764c..45cae975eda6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6630,6 +6630,11 @@ S: Maintained F: Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml F: drivers/gpu/drm/panel/panel-samsung-s6d27a1.c +DRM DRIVER FOR SAMSUNG S6E3FC2X01 PANELS +M: Nia Espera <a...@riseup.net> +S: Maintained +F: drivers/gpu/drm/panel/panel-samsung-s6e3fc2x01.c + DRM DRIVER FOR SITRONIX ST7703 PANELS M: Guido Günther <a...@sigxcpu.org> R: Purism Kernel Team <ker...@puri.sm> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 9a281120363c..0dd5e1ec5644 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -558,6 +558,18 @@ config DRM_PANEL_SAMSUNG_SOFEF00 The panels are 2280x1080@60Hz and 2340x1080@60Hz respectively +config DRM_PANEL_SAMSUNG_S6E3FC2X01 + tristate "Samsung s6e3fc2x01 OnePlus 6T DSI cmd mode panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select VIDEOMODE_HELPERS + help + Say Y or M here if you want to enable support for the Samsung AMOLED + command mode panel found in the OnePlus 6T smartphone. + + The panel is 2340x1080@60Hz + config DRM_PANEL_SEIKO_43WVF1G tristate "Seiko 43WVF1G panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 6d493b9d64fe..b54de8812e91 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -56,6 +56,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0_DSI) += panel-samsung-s6e63m0-dsi.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01) += panel-samsung-s6e88a0-ams452ef01.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF00) += panel-samsung-sofef00.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3FC2X01) += panel-samsung-s6e3fc2x01.o obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3fc2x01.c b/drivers/gpu/drm/panel/panel-samsung-s6e3fc2x01.c new file mode 100644 index 000000000000..a8afca25cb35 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3fc2x01.c @@ -0,0 +1,388 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2022 Nia Espera <a...@riseup.net> + * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: + * Copyright (c) 2022, 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/of_device.h> +#include <linux/regulator/consumer.h> +#include <linux/swab.h> +#include <linux/backlight.h> + +#include <video/mipi_display.h> + +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> + +struct samsung_s6e3fc2x01 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct regulator *supply; + struct gpio_desc *reset_gpio; + const struct drm_display_mode *mode; + bool prepared; +}; + +static inline +struct samsung_s6e3fc2x01 *to_samsung_s6e3fc2x01(struct drm_panel *panel) +{ + return container_of(panel, struct samsung_s6e3fc2x01, panel); +} + +static void samsung_s6e3fc2x01_reset(struct samsung_s6e3fc2x01 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(2000, 3000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 11000); +} + +static int samsung_s6e3fc2x01_on(struct samsung_s6e3fc2x01 *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, 0x9f, 0xa5, 0xa5); + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + usleep_range(10000, 11000); + + mipi_dsi_dcs_write_seq(dsi, 0x9f, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xcd, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + usleep_range(15000, 16000); + mipi_dsi_dcs_write_seq(dsi, 0x9f, 0xa5, 0xa5); + + 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, 0x9f, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xeb, 0x17, 0x41, 0x92, 0x0e, 0x10, 0x82, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + + 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, 0x0923); + if (ret < 0) { + dev_err(dev, "Failed to set page address: %d\n", ret); + return ret; + } + + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x09); + mipi_dsi_dcs_write_seq(dsi, 0xe8, 0x10, 0x30); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x07); + mipi_dsi_dcs_write_seq(dsi, 0xb7, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x08); + mipi_dsi_dcs_write_seq(dsi, 0xb7, 0x12); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, 0xfc, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xe3, 0x88); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x07); + mipi_dsi_dcs_write_seq(dsi, 0xed, 0x67); + mipi_dsi_dcs_write_seq(dsi, 0xfc, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); + usleep_range(1000, 2000); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb3, 0x00, 0xc1); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + + usleep_range(10000, 11000); + mipi_dsi_dcs_write_seq(dsi, 0x9f, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, 0x29); + mipi_dsi_dcs_write_seq(dsi, 0x9f, 0x5a, 0x5a); + + return 0; +} + +static int samsung_s6e3fc2x01_off(struct samsung_s6e3fc2x01 *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, 0x9f, 0xa5, 0xa5); + + 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(10000, 11000); + + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + usleep_range(16000, 17000); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x50); + mipi_dsi_dcs_write_seq(dsi, 0xb9, 0x82); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + usleep_range(16000, 17000); + msleep(40); + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to enter sleep mode: %d\n", ret); + return ret; + } + + mipi_dsi_dcs_write_seq(dsi, 0x9f, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x05); + mipi_dsi_dcs_write_seq(dsi, 0xf4, 0x01); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + msleep(160); + + return 0; +} + +static int samsung_s6e3fc2x01_prepare(struct drm_panel *panel) +{ + struct samsung_s6e3fc2x01 *ctx = to_samsung_s6e3fc2x01(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (ctx->prepared) + return 0; + + ret = regulator_enable(ctx->supply); + if (ret < 0) { + dev_err(dev, "Failed to enable regulator: %d\n", ret); + return ret; + } + + samsung_s6e3fc2x01_reset(ctx); + + ret = samsung_s6e3fc2x01_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->supply); + return ret; + } + + ctx->prepared = true; + return 0; +} + +static int samsung_s6e3fc2x01_unprepare(struct drm_panel *panel) +{ + struct samsung_s6e3fc2x01 *ctx = to_samsung_s6e3fc2x01(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (!ctx->prepared) + return 0; + + ret = samsung_s6e3fc2x01_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->supply); + + ctx->prepared = false; + return 0; +} + +static const struct drm_display_mode samsung_s6e3fc2x01_mode = { + .clock = (1080 + 72 + 16 + 36) * (2340 + 32 + 4 + 18) * 60 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 72, + .hsync_end = 1080 + 72 + 16, + .htotal = 1080 + 72 + 16 + 36, + .vdisplay = 2340, + .vsync_start = 2340 + 32, + .vsync_end = 2340 + 32 + 4, + .vtotal = 2340 + 32 + 4 + 18, + .width_mm = 68, + .height_mm = 145, +}; + +static int samsung_s6e3fc2x01_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct drm_display_mode *mode; + struct samsung_s6e3fc2x01 *ctx = to_samsung_s6e3fc2x01(panel); + + mode = drm_mode_duplicate(connector->dev, ctx->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 samsung_s6e3fc2x01_panel_funcs = { + .prepare = samsung_s6e3fc2x01_prepare, + .unprepare = samsung_s6e3fc2x01_unprepare, + .get_modes = samsung_s6e3fc2x01_get_modes, +}; + +static int s6e3fc2x01_panel_bl_update_status(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi = bl_get_data(bl); + int err; + u16 brightness; + + brightness = (u16)backlight_get_brightness(bl); + // This panel needs the high and low bytes swapped for the brightness value + brightness = __swab16(brightness); + + err = mipi_dsi_dcs_set_display_brightness(dsi, brightness); + if (err < 0) + return err; + + return 0; +} + +static const struct backlight_ops s6e3fc2x01_panel_bl_ops = { + .update_status = s6e3fc2x01_panel_bl_update_status, +}; + +static struct backlight_device * +s6e3fc2x01_create_backlight(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + const struct backlight_properties props = { + .type = BACKLIGHT_PLATFORM, + .brightness = 1023, + .max_brightness = 1023, + }; + + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, + &s6e3fc2x01_panel_bl_ops, &props); +} + +static int samsung_s6e3fc2x01_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct samsung_s6e3fc2x01 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->mode = of_device_get_match_data(dev); + + if (!ctx->mode) { + dev_err(dev, "Missing device mode\n"); + return -ENODEV; + } + + ctx->supply = devm_regulator_get(dev, "vddio"); + if (IS_ERR(ctx->supply)) + return dev_err_probe(dev, PTR_ERR(ctx->supply), + "Failed to get vddio regulator\n"); + + 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_MODE_NO_EOT_PACKET | + MIPI_DSI_CLOCK_NON_CONTINUOUS; + + drm_panel_init(&ctx->panel, dev, &samsung_s6e3fc2x01_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + + ctx->panel.backlight = s6e3fc2x01_create_backlight(dsi); + if (IS_ERR(ctx->panel.backlight)) + return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight), + "Failed to create 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 int samsung_s6e3fc2x01_remove(struct mipi_dsi_device *dsi) +{ + struct samsung_s6e3fc2x01 *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); + + return 0; +} + +static const struct of_device_id samsung_s6e3fc2x01_of_match[] = { + { + .compatible = "samsung,s6e3fc2x01", + .data = &samsung_s6e3fc2x01_mode, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, samsung_s6e3fc2x01_of_match); + +static struct mipi_dsi_driver samsung_s6e3fc2x01_driver = { + .probe = samsung_s6e3fc2x01_probe, + .remove = samsung_s6e3fc2x01_remove, + .driver = { + .name = "panel-samsung-s6e3fc2x01", + .of_match_table = samsung_s6e3fc2x01_of_match, + }, +}; +module_mipi_dsi_driver(samsung_s6e3fc2x01_driver); + +MODULE_AUTHOR("Nia Espera <a...@riseup.net>"); +MODULE_DESCRIPTION("DRM driver for OnePlus 6T Panel"); +MODULE_LICENSE("GPL v2"); -- 2.38.0