The Sony Xperia 1 (codename kumano griffin) features an unnamed 4k OLED DSI cmd mode panel produced by Samsung. It can be driven in a 1644x3840@60 or 1096x2560@60 mode, and always has Display Stream Compression 1.1 enabled. Signed-off-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx> --- drivers/gpu/drm/panel/Kconfig | 13 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-sony-griffin-samsung.c | 410 +++++++++++++++++++++ 3 files changed, 424 insertions(+) diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 8e2668153bce2..888b5152ca55e 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -743,6 +743,19 @@ config DRM_PANEL_SONY_AKATSUKI_LGD This panel uses Display Stream Compression 1.1. +config DRM_PANEL_SONY_GRIFFIN_SAMSUNG + tristate "Sony Xperia 1 4k OLED panel" + depends on GPIOLIB && OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y here if you want to enable support for the Sony Xperia 1 4k + 6.5" OLED DSI cmd mode panel produced by Samsung. + + This panel uses Display Stream Compression 1.1. + + The panel features a 1644x3840@60 and 1096x2560@60 mode. + config DRM_PANEL_SONY_TD4353_JDI tristate "Sony TD4353 JDI panel" depends on GPIOLIB && OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 52dcd82e33120..734d32987330d 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -74,6 +74,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o obj-$(CONFIG_DRM_PANEL_SONY_AKATSUKI_LGD) += panel-sony-akatsuki-lgd.o +obj-$(CONFIG_DRM_PANEL_SONY_GRIFFIN_SAMSUNG) += panel-sony-griffin-samsung.o obj-$(CONFIG_DRM_PANEL_SONY_TD4353_JDI) += panel-sony-td4353-jdi.o obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt35521.o obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o diff --git a/drivers/gpu/drm/panel/panel-sony-griffin-samsung.c b/drivers/gpu/drm/panel/panel-sony-griffin-samsung.c new file mode 100644 index 0000000000000..755cec7f9119b --- /dev/null +++ b/drivers/gpu/drm/panel/panel-sony-griffin-samsung.c @@ -0,0 +1,410 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (c) 2023 Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx> + +#include <linux/backlight.h> +#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> +#include <drm/drm_probe_helper.h> +#include <drm/display/drm_dsc.h> +#include <drm/display/drm_dsc_helper.h> + +static const bool enable_4k = true; + +struct sony_griffin_samsung { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator *vddio, *vci; + bool prepared; +}; + +static inline +struct sony_griffin_samsung *to_sony_griffin_samsung(struct drm_panel *panel) +{ + return container_of(panel, struct sony_griffin_samsung, panel); +} + +static void sony_griffin_samsung_reset(struct sony_griffin_samsung *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 11000); +} + +static int sony_griffin_samsung_on(struct sony_griffin_samsung *ctx) +{ + const u16 hdisplay = enable_4k ? 1644 : 1096; + const u16 vdisplay = enable_4k ? 3840 : 2560; + 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_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + usleep_range(10000, 11000); + + 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, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x05); + mipi_dsi_dcs_write_seq(dsi, 0xd7, 0x07); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + /* Enable backlight control */ + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, BIT(5)); + msleep(110); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xe2, enable_4k ? 0 : 1); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + + ret = mipi_dsi_dcs_set_column_address(dsi, 0, hdisplay - 1); + if (ret < 0) { + dev_err(dev, "Failed to set column address: %d\n", ret); + return ret; + } + + ret = mipi_dsi_dcs_set_page_address(dsi, 0, vdisplay - 1); + 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, 0x70); + mipi_dsi_dcs_write_seq(dsi, 0xb9, 0x00, 0x60); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + mipi_dsi_dcs_write_seq(dsi, 0xc5, 0x2e, 0x21); + 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 turn display on: %d\n", ret); + return ret; + } + + return 0; +} + +static int sony_griffin_samsung_off(struct sony_griffin_samsung *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 turn display off: %d\n", ret); + return ret; + } + msleep(20); + + mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, BIT(5)); + usleep_range(17000, 18000); + + 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(100); + + return 0; +} + +static int sony_griffin_samsung_prepare(struct drm_panel *panel) +{ + struct sony_griffin_samsung *ctx = to_sony_griffin_samsung(panel); + struct drm_dsc_picture_parameter_set pps; + struct device *dev = &ctx->dsi->dev; + int ret; + + if (ctx->prepared) + return 0; + + ret = regulator_enable(ctx->vddio); + if (ret < 0) { + dev_err(dev, "Failed to enable vddio regulator: %d\n", ret); + return ret; + } + + ret = regulator_enable(ctx->vci); + if (ret < 0) { + dev_err(dev, "Failed to enable vci regulator: %d\n", ret); + regulator_disable(ctx->vddio); + return ret; + } + + sony_griffin_samsung_reset(ctx); + + ret = sony_griffin_samsung_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + goto fail; + } + + if (ctx->dsi->dsc) { + drm_dsc_pps_payload_pack(&pps, ctx->dsi->dsc); + + ret = mipi_dsi_picture_parameter_set(ctx->dsi, &pps); + if (ret < 0) { + dev_err(dev, "failed to transmit PPS: %d\n", ret); + goto fail; + } + + ret = mipi_dsi_compression_mode(ctx->dsi, true); + if (ret < 0) { + dev_err(dev, "failed to enable compression mode: %d\n", ret); + goto fail; + } + + msleep(28); + } + + ctx->prepared = true; + return 0; + +fail: + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->vci); + regulator_disable(ctx->vddio); + return ret; +} + +static int sony_griffin_samsung_unprepare(struct drm_panel *panel) +{ + struct sony_griffin_samsung *ctx = to_sony_griffin_samsung(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (!ctx->prepared) + return 0; + + ret = sony_griffin_samsung_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->vddio); + regulator_disable(ctx->vci); + + ctx->prepared = false; + return 0; +} + +static const struct drm_display_mode sony_griffin_samsung_2_5k_mode = { + .clock = (1096 + 56 + 8 + 8) * (2560 + 8 + 8 + 8) * 60 / 1000, + .hdisplay = 1096, + .hsync_start = 1096 + 56, + .hsync_end = 1096 + 56 + 8, + .htotal = 1096 + 56 + 8 + 8, + .vdisplay = 2560, + .vsync_start = 2560 + 8, + .vsync_end = 2560 + 8 + 8, + .vtotal = 2560 + 8 + 8 + 8, + .width_mm = 65, + .height_mm = 152, +}; + +static const struct drm_display_mode sony_griffin_samsung_4k_mode = { + .clock = (1644 + 60 + 8 + 8) * (3840 + 8 + 8 + 8) * 60 / 1000, + .hdisplay = 1644, + .hsync_start = 1644 + 60, + .hsync_end = 1644 + 60 + 8, + .htotal = 1644 + 60 + 8 + 8, + .vdisplay = 3840, + .vsync_start = 3840 + 8, + .vsync_end = 3840 + 8 + 8, + .vtotal = 3840 + 8 + 8 + 8, + .width_mm = 65, + .height_mm = 152, +}; + +static int sony_griffin_samsung_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + if (enable_4k) + return drm_connector_helper_get_modes_fixed(connector, + &sony_griffin_samsung_4k_mode); + else + return drm_connector_helper_get_modes_fixed(connector, + &sony_griffin_samsung_2_5k_mode); +} + +static const struct drm_panel_funcs sony_griffin_samsung_panel_funcs = { + .prepare = sony_griffin_samsung_prepare, + .unprepare = sony_griffin_samsung_unprepare, + .get_modes = sony_griffin_samsung_get_modes, +}; + +static int sony_griffin_samsung_bl_update_status(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi = bl_get_data(bl); + u16 brightness = backlight_get_brightness(bl); + int ret; + + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + return ret; +} + +static int sony_griffin_samsung_bl_get_brightness(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi = bl_get_data(bl); + u16 brightness; + int ret; + + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness); + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + if (ret < 0) + return ret; + + return brightness; +} + +static const struct backlight_ops sony_griffin_samsung_bl_ops = { + .update_status = sony_griffin_samsung_bl_update_status, + .get_brightness = sony_griffin_samsung_bl_get_brightness, +}; + +static struct backlight_device * +sony_griffin_samsung_create_backlight(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + const struct backlight_properties props = { + .type = BACKLIGHT_RAW, + .brightness = 400, + .max_brightness = 4095, + }; + + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, + &sony_griffin_samsung_bl_ops, &props); +} + +static int sony_griffin_samsung_probe(struct mipi_dsi_device *dsi) +{ + const u16 hdisplay = enable_4k ? 1644 : 1096; + struct device *dev = &dsi->dev; + struct sony_griffin_samsung *ctx; + struct drm_dsc_config *dsc; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->vddio = devm_regulator_get(dev, "vddio"); + if (IS_ERR(ctx->vddio)) + return dev_err_probe(dev, PTR_ERR(ctx->vddio), + "Failed to get vddio regulator\n"); + + ctx->vci = devm_regulator_get(dev, "vci"); + if (IS_ERR(ctx->vci)) + return dev_err_probe(dev, PTR_ERR(ctx->vci), + "Failed to get vci 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_CLOCK_NON_CONTINUOUS; + + drm_panel_init(&ctx->panel, dev, &sony_griffin_samsung_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + + ctx->panel.backlight = sony_griffin_samsung_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); + + /* This panel only supports DSC; unconditionally enable it */ + dsi->dsc = dsc = devm_kzalloc(&dsi->dev, sizeof(*dsc), GFP_KERNEL); + if (!dsc) + return -ENOMEM; + + dsc->dsc_version_major = 1; + dsc->dsc_version_minor = 1; + + dsc->slice_height = 32; + dsc->slice_count = 2; + WARN_ON(hdisplay % dsc->slice_count); + dsc->slice_width = hdisplay / dsc->slice_count; + dsc->bits_per_component = 8; + dsc->bits_per_pixel = 8 << 4; /* 4 fractional bits */ + 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(&ctx->panel); + return ret; + } + + return 0; +} + +static void sony_griffin_samsung_remove(struct mipi_dsi_device *dsi) +{ + struct sony_griffin_samsung *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 sony_griffin_samsung_of_match[] = { + { .compatible = "sony,griffin-samsung-4k-oled" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sony_griffin_samsung_of_match); + +static struct mipi_dsi_driver sony_griffin_samsung_driver = { + .probe = sony_griffin_samsung_probe, + .remove = sony_griffin_samsung_remove, + .driver = { + .name = "panel-sony-griffin-samsung-4k-oled", + .of_match_table = sony_griffin_samsung_of_match, + }, +}; +module_mipi_dsi_driver(sony_griffin_samsung_driver); + +MODULE_AUTHOR("Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>"); +MODULE_DESCRIPTION("DRM panel driver for an unnamed Samsung 4k OLED panel found in the Sony Xperia 1"); +MODULE_LICENSE("GPL"); -- 2.40.1