diff options
| -rw-r--r-- | drivers/gpu/drm/panel/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/panel/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/panel/panel-samsung-ams581vf01.c | 283 |
3 files changed, 293 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index ddfaa99ea9dd..f637dcc7a886 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -614,6 +614,15 @@ config DRM_PANEL_RONBO_RB070D30 Say Y here if you want to enable support for Ronbo Electronics RB070D30 1024x600 DSI panel. +config DRM_PANEL_SAMSUNG_AMS581VF01 + tristate "Samsung AMS581VF01 panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y or M here if you want to enable support for the + Samsung AMS581VF01 FHD Plus (2340x1080@60Hz) CMD mode panel. + config DRM_PANEL_SAMSUNG_AMS639RQ08 tristate "Samsung AMS639RQ08 panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 4b5eaf111676..4db02c2411ae 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -62,6 +62,7 @@ obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_AMS581VF01) += panel-samsung-ams581vf01.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_AMS639RQ08) += panel-samsung-ams639rq08.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20) += panel-samsung-atna33xc20.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o diff --git a/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c b/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c new file mode 100644 index 000000000000..cf6186312252 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c @@ -0,0 +1,283 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2024, Danila Tikhonov <danila@jiaxyga.com> + */ + +#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> + +/* Manufacturer Command Set */ +#define MCS_ACCESS_PROT_OFF 0xb0 +#define MCS_PASSWD 0xf0 + +struct ams581vf01 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator_bulk_data *supplies; +}; + +static const struct regulator_bulk_data ams581vf01_supplies[] = { + { .supply = "vdd3p3" }, + { .supply = "vddio" }, + { .supply = "vsn" }, + { .supply = "vsp" }, +}; + +static inline struct ams581vf01 *to_ams581vf01(struct drm_panel *panel) +{ + return container_of(panel, struct ams581vf01, panel); +} + +static void ams581vf01_reset(struct ams581vf01 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(10000, 11000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 11000); +} + +static int ams581vf01_on(struct ams581vf01 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; + + /* Sleep Out, Wait 10ms */ + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + usleep_range(10000, 11000); + + /* TE On */ + mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK); + + /* MIC Setting */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0x5a, 0x5a); /* Unlock */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xeb, 0x17, + 0x41, 0x92, + 0x0e, 0x10, + 0x82, 0x5a); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0xa5, 0xa5); /* Lock */ + + /* Column & Page Address Setting */ + mipi_dsi_dcs_set_column_address_multi(&dsi_ctx, 0x0000, 0x0437); + mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0x0000, 0x0923); + + /* Brightness Setting */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); + + /* Horizontal & Vertical sync Setting */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0x5a, 0x5a); /* Unlock */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x09); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe8, 0x11, 0x30); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0xa5, 0xa5); /* Lock */ + mipi_dsi_msleep(&dsi_ctx, 110); + + /* Display On */ + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); + + return dsi_ctx.accum_err; +} + +static void ams581vf01_off(struct ams581vf01 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; + + /* Display Off & Sleep In */ + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 20); + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + + /* VCI operating mode change */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0x5a, 0x5a); /* Unlock */ + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x05); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4, 0x01); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0xa5, 0xa5); /* Lock */ + + mipi_dsi_msleep(&dsi_ctx, 120); +} + +static int ams581vf01_prepare(struct drm_panel *panel) +{ + struct ams581vf01 *ctx = to_ams581vf01(panel); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ams581vf01_supplies), + ctx->supplies); + if (ret < 0) + return ret; + + ams581vf01_reset(ctx); + + ret = ams581vf01_on(ctx); + if (ret < 0) { + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(ams581vf01_supplies), + ctx->supplies); + return ret; + } + + return 0; +} + +static int ams581vf01_unprepare(struct drm_panel *panel) +{ + struct ams581vf01 *ctx = to_ams581vf01(panel); + + ams581vf01_off(ctx); + + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(ams581vf01_supplies), + ctx->supplies); + + return 0; +} + +static const struct drm_display_mode ams581vf01_mode = { + .clock = (1080 + 32 + 73 + 98) * (2340 + 8 + 1 + 8) * 60 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 32, + .hsync_end = 1080 + 32 + 73, + .htotal = 1080 + 32 + 73 + 98, + .vdisplay = 2340, + .vsync_start = 2340 + 8, + .vsync_end = 2340 + 8 + 1, + .vtotal = 2340 + 8 + 1 + 8, + .width_mm = 62, + .height_mm = 134, + .type = DRM_MODE_TYPE_DRIVER, +}; + +static int ams581vf01_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, &ams581vf01_mode); +} + +static const struct drm_panel_funcs ams581vf01_panel_funcs = { + .prepare = ams581vf01_prepare, + .unprepare = ams581vf01_unprepare, + .get_modes = ams581vf01_get_modes, +}; + +static int ams581vf01_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 ams581vf01_bl_ops = { + .update_status = ams581vf01_bl_update_status, +}; + +static struct backlight_device * +ams581vf01_create_backlight(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + const struct backlight_properties props = { + .type = BACKLIGHT_RAW, + .brightness = 511, + .max_brightness = 1023, + }; + + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, + &ams581vf01_bl_ops, &props); +} + +static int ams581vf01_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct ams581vf01 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ret = devm_regulator_bulk_get_const(&dsi->dev, + ARRAY_SIZE(ams581vf01_supplies), + ams581vf01_supplies, + &ctx->supplies); + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to get regulators\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_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM; + + drm_panel_init(&ctx->panel, dev, &ams581vf01_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first = true; + + ctx->panel.backlight = ams581vf01_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 = devm_mipi_dsi_attach(dev, 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 ams581vf01_remove(struct mipi_dsi_device *dsi) +{ + struct ams581vf01 *ctx = mipi_dsi_get_drvdata(dsi); + + drm_panel_remove(&ctx->panel); +} + +static const struct of_device_id ams581vf01_of_match[] = { + { .compatible = "samsung,ams581vf01" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ams581vf01_of_match); + +static struct mipi_dsi_driver ams581vf01_driver = { + .probe = ams581vf01_probe, + .remove = ams581vf01_remove, + .driver = { + .name = "panel-samsung-ams581vf01", + .of_match_table = ams581vf01_of_match, + }, +}; +module_mipi_dsi_driver(ams581vf01_driver); + +MODULE_AUTHOR("Danila Tikhonov <danila@jiaxyga.com>"); +MODULE_DESCRIPTION("DRM driver for SAMSUNG AMS581VF01 cmd mode dsi panel"); +MODULE_LICENSE("GPL"); |