Add a panel driver for Raydium RM69220 DDIC based displays such as the BOE BF068MWM-TD0 found in the Nothing Phone (3a).
Signed-off-by: Alexander Koskovich <[email protected]> --- MAINTAINERS | 1 + drivers/gpu/drm/panel/Kconfig | 15 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-raydium-rm69220.c | 435 ++++++++++++++++++++++++++ 4 files changed, 452 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index ca2417d9d238..367f8a42e485 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8358,6 +8358,7 @@ DRM DRIVER FOR RAYDIUM RM69220 PANELS M: Alexander Koskovich <[email protected]> S: Maintained F: Documentation/devicetree/bindings/display/panel/raydium,rm69220.yaml +F: drivers/gpu/drm/panel/panel-raydium-rm69220.c DRM DRIVER FOR SAMSUNG DB7430 PANELS M: Linus Walleij <[email protected]> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 7450b27622a2..142c91202b8f 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -769,6 +769,21 @@ config DRM_PANEL_RAYDIUM_RM692E5 Say Y here if you want to enable support for Raydium RM692E5-based display panels, such as the one found in the Fairphone 5 smartphone. +config DRM_PANEL_RAYDIUM_RM69220 + tristate "Raydium RM69220-based DSI panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + select DRM_DISPLAY_DSC_HELPER + select DRM_DISPLAY_HELPER + help + Say Y here if you want to enable support for Raydium RM69220-based + display panels, such as the BOE BF068MWM-TD0 which can be found in + the Nothing Phone (3a). + + To compile this driver as a module, choose M here: the module + will be called panel-raydium-rm69220. + config DRM_PANEL_RAYDIUM_RM69380 tristate "Raydium RM69380-based DSI panel" depends on GPIOLIB diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index c2c5cf817116..4c23ac013f12 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -76,6 +76,7 @@ obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67191) += panel-raydium-rm67191.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67200) += panel-raydium-rm67200.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o +obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69220) += panel-raydium-rm69220.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o obj-$(CONFIG_DRM_PANEL_RENESAS_R61307) += panel-renesas-r61307.o obj-$(CONFIG_DRM_PANEL_RENESAS_R69328) += panel-renesas-r69328.o diff --git a/drivers/gpu/drm/panel/panel-raydium-rm69220.c b/drivers/gpu/drm/panel/panel-raydium-rm69220.c new file mode 100644 index 000000000000..9f5dd51b4d5e --- /dev/null +++ b/drivers/gpu/drm/panel/panel-raydium-rm69220.c @@ -0,0 +1,435 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree. + * Copyright (c) 2026 Alexander Koskovich <[email protected]> + */ + +#include <linux/backlight.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/regulator/consumer.h> + +#include <video/mipi_display.h> + +#include <drm/display/drm_dsc.h> +#include <drm/display/drm_dsc_helper.h> +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> +#include <drm/drm_probe_helper.h> + +struct raydium_rm69220 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct drm_dsc_config dsc; + struct regulator_bulk_data *supplies; + struct gpio_desc *reset_gpio; +}; + +static const struct regulator_bulk_data raydium_rm69220_supplies[] = { + { .supply = "vddio" }, + { .supply = "dvdd" }, + { .supply = "vci" }, +}; + +static inline +struct raydium_rm69220 *to_raydium_rm69220(struct drm_panel *panel) +{ + return container_of(panel, struct raydium_rm69220, panel); +} + +static void raydium_rm69220_reset(struct raydium_rm69220 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(1000, 2000); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(1000, 2000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(32); +} + +static int raydium_rm69220_on(struct raydium_rm69220 *ctx) +{ + struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi }; + + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x76); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9a, 0x10); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9b, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x77); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9a, 0x10); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9b, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x78); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9a, 0x10); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9b, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x79); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9a, 0xf0); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9b, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x74); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x1a, 0xe0); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x1b, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x40); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa9, 0x68); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xab, 0x22); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x40); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc0, 0xa6); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbf, 0x87); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x82); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x00, 0x90); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xd4); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x61, 0x08); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa2, 0x04); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfa, 0x01); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xd2); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x97, 0x08); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x36, 0x11); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x39, 0xab); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x3a, 0x30); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x3b, 0x80); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x3d, 0x09); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x3f, 0x58); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x40, 0x04); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x41, 0x38); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x42, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x43, 0x0d); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x44, 0x02); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x45, 0x1c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x46, 0x02); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x47, 0x1c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x48, 0x02); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x49, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4a, 0x02); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4b, 0x0e); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4d, 0x20); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4e, 0x01); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4f, 0x39); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x51, 0x07); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x53, 0x0c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x54, 0x08); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x55, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x56, 0x07); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x58, 0xd3); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x59, 0x18); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5a, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5b, 0x10); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5c, 0xf0); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5d, 0x07); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5e, 0x10); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5f, 0x20); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x60, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x61, 0x06); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x62, 0x0f); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x63, 0x0f); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x64, 0x33); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x0e); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x66, 0x1c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x67, 0x2a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x68, 0x38); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x69, 0x46); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6a, 0x54); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6b, 0x62); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6c, 0x69); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6d, 0x70); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6e, 0x77); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6f, 0x79); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x70, 0x7b); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x71, 0x7d); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x72, 0x7e); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x73, 0x01); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x74, 0x02); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x75, 0x22); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x76, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x77, 0x2a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x78, 0x40); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x79, 0x2a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7a, 0xbe); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7b, 0x3a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7c, 0xfc); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7d, 0x3a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7e, 0xfa); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7f, 0x3a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x80, 0xf8); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x81, 0x3b); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x82, 0x38); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x83, 0x3b); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x84, 0x78); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x85, 0x3b); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x86, 0xb6); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x87, 0x4b); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x88, 0xf6); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x89, 0x4c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8a, 0x34); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8b, 0x4c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8c, 0x74); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8d, 0x5c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8e, 0x74); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8f, 0x8c); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x90, 0xf4); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x91, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x92, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x93, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x94, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x95, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x96, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xa0); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x66, 0x06); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x49); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x87, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x3f, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xa0); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x04, 0x07); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4b, 0x40); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4d, 0x40); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xa1); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x58, 0x67); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x75, 0xa7); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x2f, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfa, 0x01); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0x03); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x03); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x35, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x51, 0x0d, 0xbb); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00); + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 80); + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); + mipi_dsi_usleep_range(&dsi_ctx, 10000, 11000); + + return dsi_ctx.accum_err; +} + +static int raydium_rm69220_off(struct raydium_rm69220 *ctx) +{ + struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi }; + + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 100); + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 100); + + return dsi_ctx.accum_err; +} + +static int raydium_rm69220_prepare(struct drm_panel *panel) +{ + struct raydium_rm69220 *ctx = to_raydium_rm69220(panel); + struct device *dev = &ctx->dsi->dev; + struct drm_dsc_picture_parameter_set pps; + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(raydium_rm69220_supplies), ctx->supplies); + if (ret < 0) { + dev_err(dev, "Failed to enable regulators: %d\n", ret); + return ret; + } + + raydium_rm69220_reset(ctx); + + ret = raydium_rm69220_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + goto err; + } + + drm_dsc_pps_payload_pack(&pps, &ctx->dsc); + + ret = mipi_dsi_picture_parameter_set(ctx->dsi, &pps); + if (ret < 0) { + dev_err(dev, "failed to transmit PPS: %d\n", ret); + goto err; + } + + ret = mipi_dsi_compression_mode(ctx->dsi, true); + if (ret < 0) { + dev_err(dev, "failed to enable compression mode: %d\n", ret); + goto err; + } + + msleep(28); + + return 0; + +err: + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(raydium_rm69220_supplies), ctx->supplies); + return ret; +} + +static int raydium_rm69220_unprepare(struct drm_panel *panel) +{ + struct raydium_rm69220 *ctx = to_raydium_rm69220(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + ret = raydium_rm69220_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_bulk_disable(ARRAY_SIZE(raydium_rm69220_supplies), ctx->supplies); + + return 0; +} + +static const struct drm_display_mode raydium_rm69220_mode = { + .clock = (1080 + 36 + 4 + 36) * (2392 + 72 + 4 + 52) * 120 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 36, + .hsync_end = 1080 + 36 + 4, + .htotal = 1080 + 36 + 4 + 36, + .vdisplay = 2392, + .vsync_start = 2392 + 72, + .vsync_end = 2392 + 72 + 4, + .vtotal = 2392 + 72 + 4 + 52, + .width_mm = 71, + .height_mm = 157, + .type = DRM_MODE_TYPE_DRIVER, +}; + +static int raydium_rm69220_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, &raydium_rm69220_mode); +} + +static const struct drm_panel_funcs raydium_rm69220_panel_funcs = { + .prepare = raydium_rm69220_prepare, + .unprepare = raydium_rm69220_unprepare, + .get_modes = raydium_rm69220_get_modes, +}; + +static int raydium_rm69220_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); + if (ret < 0) + return ret; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + return 0; +} + +static const struct backlight_ops raydium_rm69220_bl_ops = { + .update_status = raydium_rm69220_bl_update_status, +}; + +static struct backlight_device * +raydium_rm69220_create_backlight(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + const struct backlight_properties props = { + .type = BACKLIGHT_RAW, + .brightness = 2946, + .max_brightness = 3442, /* 4095 is HBM max */ + }; + + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, + &raydium_rm69220_bl_ops, &props); +} + +static int raydium_rm69220_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct raydium_rm69220 *ctx; + int ret; + + ctx = devm_drm_panel_alloc(dev, struct raydium_rm69220, panel, + &raydium_rm69220_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + if (IS_ERR(ctx)) + return PTR_ERR(ctx); + + ret = devm_regulator_bulk_get_const(dev, + ARRAY_SIZE(raydium_rm69220_supplies), + raydium_rm69220_supplies, + &ctx->supplies); + if (ret < 0) + return ret; + + 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_RGB101010; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET | + MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM | + MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT; + + ctx->panel.prepare_prev_first = true; + + ctx->panel.backlight = raydium_rm69220_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 = &ctx->dsc; + + ctx->dsc.dsc_version_major = 1; + ctx->dsc.dsc_version_minor = 1; + ctx->dsc.slice_height = 13; + ctx->dsc.slice_width = 540; + + ctx->dsc.slice_count = 1080 / ctx->dsc.slice_width; + ctx->dsc.bits_per_component = 10; + ctx->dsc.bits_per_pixel = 8 << 4; /* 4 fractional bits */ + ctx->dsc.block_pred_enable = true; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + drm_panel_remove(&ctx->panel); + return dev_err_probe(dev, ret, "Failed to attach to DSI host\n"); + } + + return 0; +} + +static void raydium_rm69220_remove(struct mipi_dsi_device *dsi) +{ + struct raydium_rm69220 *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 raydium_rm69220_of_match[] = { + { .compatible = "boe,bf068mwm-td0" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, raydium_rm69220_of_match); + +static struct mipi_dsi_driver raydium_rm69220_driver = { + .probe = raydium_rm69220_probe, + .remove = raydium_rm69220_remove, + .driver = { + .name = "panel-raydium-rm69220", + .of_match_table = raydium_rm69220_of_match, + }, +}; +module_mipi_dsi_driver(raydium_rm69220_driver); + +MODULE_AUTHOR("Alexander Koskovich <[email protected]>"); +MODULE_DESCRIPTION("DRM driver for RM69220-equipped DSI panels"); +MODULE_LICENSE("GPL"); -- 2.53.0
