diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/panel/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/panel/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/panel/panel-samsung-sofef00.c | 351 |
3 files changed, 364 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index e386524b2d77..7b9d0e3d1f28 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -371,6 +371,18 @@ config DRM_PANEL_SAMSUNG_S6E8AA0 select DRM_MIPI_DSI select VIDEOMODE_HELPERS +config DRM_PANEL_SAMSUNG_SOFEF00 + tristate "Samsung sofef00/s6e3fc2x01 OnePlus 6/6T DSI cmd mode panels" + 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 panels found in the OnePlus 6/6T smartphones. + + The panels are 2280x1080@60Hz and 2340x1080@60Hz respectively + 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 d1f8cc572f37..6f5779a50581 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63M0_SPI) += panel-samsung-s6e63m0-spi.o obj-$(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_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-sofef00.c b/drivers/gpu/drm/panel/panel-samsung-sofef00.c new file mode 100644 index 000000000000..8cb1853574bb --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-sofef00.c @@ -0,0 +1,351 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Caleb Connolly <caleb@connolly.tech> + * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: + * Copyright (c) 2020, 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 sofef00_panel { + 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 sofef00_panel *to_sofef00_panel(struct drm_panel *panel) +{ + return container_of(panel, struct sofef00_panel, panel); +} + +#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 sofef00_panel_reset(struct sofef00_panel *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(5000, 6000); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(2000, 3000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(12000, 13000); +} + +static int sofef00_panel_on(struct sofef00_panel *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_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + usleep_range(10000, 11000); + + dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + + 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, 0xf0, 0xa5, 0xa5); + dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); + dsi_dcs_write_seq(dsi, 0xb0, 0x07); + dsi_dcs_write_seq(dsi, 0xb6, 0x12); + dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); + dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); + dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 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; + } + + return 0; +} + +static int sofef00_panel_off(struct sofef00_panel *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 set display off: %d\n", ret); + return ret; + } + 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; + } + msleep(160); + + return 0; +} + +static int sofef00_panel_prepare(struct drm_panel *panel) +{ + struct sofef00_panel *ctx = to_sofef00_panel(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; + } + + sofef00_panel_reset(ctx); + + ret = sofef00_panel_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 sofef00_panel_unprepare(struct drm_panel *panel) +{ + struct sofef00_panel *ctx = to_sofef00_panel(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (!ctx->prepared) + return 0; + + ret = sofef00_panel_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + regulator_disable(ctx->supply); + + ctx->prepared = false; + return 0; +} + +static const struct drm_display_mode enchilada_panel_mode = { + .clock = (1080 + 112 + 16 + 36) * (2280 + 36 + 8 + 12) * 60 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 112, + .hsync_end = 1080 + 112 + 16, + .htotal = 1080 + 112 + 16 + 36, + .vdisplay = 2280, + .vsync_start = 2280 + 36, + .vsync_end = 2280 + 36 + 8, + .vtotal = 2280 + 36 + 8 + 12, + .width_mm = 68, + .height_mm = 145, +}; + +static const struct drm_display_mode fajita_panel_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 sofef00_panel_get_modes(struct drm_panel *panel, struct drm_connector *connector) +{ + struct drm_display_mode *mode; + struct sofef00_panel *ctx = to_sofef00_panel(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 sofef00_panel_panel_funcs = { + .prepare = sofef00_panel_prepare, + .unprepare = sofef00_panel_unprepare, + .get_modes = sofef00_panel_get_modes, +}; + +static int sofef00_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 sofef00_panel_bl_ops = { + .update_status = sofef00_panel_bl_update_status, +}; + +static struct backlight_device * +sofef00_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, + &sofef00_panel_bl_ops, &props); +} + +static int sofef00_panel_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct sofef00_panel *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)) { + ret = PTR_ERR(ctx->supply); + dev_err(dev, "Failed to get vddio regulator: %d\n", ret); + return ret; + } + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->reset_gpio)) { + ret = PTR_ERR(ctx->reset_gpio); + dev_warn(dev, "Failed to get reset-gpios: %d\n", ret); + return ret; + } + + ctx->dsi = dsi; + mipi_dsi_set_drvdata(dsi, ctx); + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + + drm_panel_init(&ctx->panel, dev, &sofef00_panel_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + + ctx->panel.backlight = sofef00_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); + return ret; + } + + return 0; +} + +static int sofef00_panel_remove(struct mipi_dsi_device *dsi) +{ + struct sofef00_panel *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 sofef00_panel_of_match[] = { + { // OnePlus 6 / enchilada + .compatible = "samsung,sofef00", + .data = &enchilada_panel_mode, + }, + { // OnePlus 6T / fajita + .compatible = "samsung,s6e3fc2x01", + .data = &fajita_panel_mode, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sofef00_panel_of_match); + +static struct mipi_dsi_driver sofef00_panel_driver = { + .probe = sofef00_panel_probe, + .remove = sofef00_panel_remove, + .driver = { + .name = "panel-oneplus6", + .of_match_table = sofef00_panel_of_match, + }, +}; + +module_mipi_dsi_driver(sofef00_panel_driver); + +MODULE_AUTHOR("Caleb Connolly <caleb@connolly.tech>"); +MODULE_DESCRIPTION("DRM driver for Samsung AMOLED DSI panels found in OnePlus 6/6T phones"); +MODULE_LICENSE("GPL v2"); |