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drm/panel: Add Samsung AMS639RQ08 panel driver
Add the driver for Samsung AMS639RQ08 FHD Plus CMD mode panel support found in: - Xiaomi Mi 9 Lite / CC9 (sdm710-xiaomi-pyxis) - Xiaomi Mi 9T / Redmi K20 (sm7150-xiaomi-davinci) - Xiaomi Mi 9T Pro / Redmi K20 Pro (sm8150-xiaomi-raphael) Tested-by: Degdag Mohamed <degdagmohamed@gmail.com> # xiaomi-raphael Tested-by: Jens Reidel <adrian@travitia.xyz> # xiaomi-davinci Signed-off-by: Danila Tikhonov <danila@jiaxyga.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240930202448.188051-3-danila@jiaxyga.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240930202448.188051-3-danila@jiaxyga.com
This commit is contained in:
Danila Tikhonov
Neil Armstrong
parent
a62528aa53
commit
bd07dbb929
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@ -614,6 +614,15 @@ config DRM_PANEL_RONBO_RB070D30
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Say Y here if you want to enable support for Ronbo Electronics
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RB070D30 1024x600 DSI panel.
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config DRM_PANEL_SAMSUNG_AMS639RQ08
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tristate "Samsung AMS639RQ08 panel"
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depends on OF
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depends on DRM_MIPI_DSI
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depends on BACKLIGHT_CLASS_DEVICE
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help
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Say Y or M here if you want to enable support for the
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Samsung AMS639RQ08 FHD Plus (2340x1080@60Hz) CMD mode panel.
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config DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01
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tristate "Samsung AMS452EF01 panel with S6E88A0 DSI video mode controller"
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depends on OF
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@ -62,6 +62,7 @@ obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
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obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o
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obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o
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obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_AMS639RQ08) += panel-samsung-ams639rq08.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20) += panel-samsung-atna33xc20.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
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329
drivers/gpu/drm/panel/panel-samsung-ams639rq08.c
Normal file
329
drivers/gpu/drm/panel/panel-samsung-ams639rq08.c
Normal file
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@ -0,0 +1,329 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2024, Danila Tikhonov <danila@jiaxyga.com>
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*/
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#include <linux/backlight.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_panel.h>
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#include <drm/drm_probe_helper.h>
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/* Manufacturer Command Set */
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#define MCS_ACCESS_PROT_OFF 0xb0
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#define MCS_UNKNOWN_B7 0xb7
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#define MCS_BIAS_CURRENT_CTRL 0xd1
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#define MCS_PASSWD1 0xf0
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#define MCS_PASSWD2 0xfc
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#define MCS_UNKNOWN_FF 0xff
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struct ams639rq08 {
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struct drm_panel panel;
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struct mipi_dsi_device *dsi;
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struct gpio_desc *reset_gpio;
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struct regulator_bulk_data *supplies;
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};
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static const struct regulator_bulk_data ams639rq08_supplies[] = {
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{ .supply = "vdd3p3" },
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{ .supply = "vddio" },
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{ .supply = "vsn" },
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{ .supply = "vsp" },
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};
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static inline struct ams639rq08 *to_ams639rq08(struct drm_panel *panel)
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{
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return container_of(panel, struct ams639rq08, panel);
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}
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static void ams639rq08_reset(struct ams639rq08 *ctx)
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{
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gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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usleep_range(1000, 2000);
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gpiod_set_value_cansleep(ctx->reset_gpio, 0);
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usleep_range(10000, 11000);
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}
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static int ams639rq08_on(struct ams639rq08 *ctx)
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{
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struct mipi_dsi_device *dsi = ctx->dsi;
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struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
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/* Delay 2ms for VCI1 power */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD1, 0x5a, 0x5a);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD2, 0x5a, 0x5a);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x0c);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_UNKNOWN_FF, 0x10);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x2f);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_BIAS_CURRENT_CTRL, 0x01);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD1, 0xa5, 0xa5);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD2, 0xa5, 0xa5);
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/* Sleep Out */
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mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
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usleep_range(10000, 11000);
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/* TE OUT (Vsync On) */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD1, 0x5a, 0x5a);
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mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
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/* DBV Smooth Transition */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_UNKNOWN_B7, 0x01, 0x4b);
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/* Edge Dimming Speed Setting */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x06);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_UNKNOWN_B7, 0x10);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD1, 0xa5, 0xa5);
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/* Page Address Set */
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mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0x0000, 0x0923);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD1, 0x5a, 0x5a);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD2, 0x5a, 0x5a);
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/* Set DDIC internal HFP */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x23);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_BIAS_CURRENT_CTRL, 0x11);
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/* OFC Setting 84.1 Mhz */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe9, 0x11, 0x55,
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0xa6, 0x75, 0xa3,
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0xb9, 0xa1, 0x4a,
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0x00, 0x1a, 0xb8);
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/* Err_FG Setting */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1,
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0x00, 0x00, 0x02,
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0x02, 0x42, 0x02);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe2,
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0x00, 0x00, 0x00,
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0x00, 0x00, 0x00);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x0c);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe1, 0x19);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD1, 0xa5, 0xa5);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD2, 0xa5, 0xa5);
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
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/* Brightness Control */
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mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0x0000);
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/* Display On */
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mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
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mipi_dsi_msleep(&dsi_ctx, 67);
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mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
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return dsi_ctx.accum_err;
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}
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static void ams639rq08_off(struct ams639rq08 *ctx)
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{
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struct mipi_dsi_device *dsi = ctx->dsi;
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struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
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mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
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mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
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mipi_dsi_msleep(&dsi_ctx, 120);
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}
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static int ams639rq08_prepare(struct drm_panel *panel)
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{
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struct ams639rq08 *ctx = to_ams639rq08(panel);
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int ret;
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ret = regulator_bulk_enable(ARRAY_SIZE(ams639rq08_supplies),
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ctx->supplies);
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if (ret < 0)
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return ret;
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ams639rq08_reset(ctx);
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ret = ams639rq08_on(ctx);
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if (ret < 0) {
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gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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regulator_bulk_disable(ARRAY_SIZE(ams639rq08_supplies),
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ctx->supplies);
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return ret;
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}
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return 0;
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}
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static int ams639rq08_unprepare(struct drm_panel *panel)
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{
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struct ams639rq08 *ctx = to_ams639rq08(panel);
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ams639rq08_off(ctx);
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gpiod_set_value_cansleep(ctx->reset_gpio, 1);
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regulator_bulk_disable(ARRAY_SIZE(ams639rq08_supplies),
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ctx->supplies);
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return 0;
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}
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static const struct drm_display_mode ams639rq08_mode = {
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.clock = (1080 + 64 + 20 + 64) * (2340 + 64 + 20 + 64) * 60 / 1000,
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.hdisplay = 1080,
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.hsync_start = 1080 + 64,
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.hsync_end = 1080 + 64 + 20,
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.htotal = 1080 + 64 + 20 + 64,
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.vdisplay = 2340,
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.vsync_start = 2340 + 64,
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.vsync_end = 2340 + 64 + 20,
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.vtotal = 2340 + 64 + 20 + 64,
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.width_mm = 68,
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.height_mm = 147,
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.type = DRM_MODE_TYPE_DRIVER,
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};
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static int ams639rq08_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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return drm_connector_helper_get_modes_fixed(connector, &ams639rq08_mode);
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}
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static const struct drm_panel_funcs ams639rq08_panel_funcs = {
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.prepare = ams639rq08_prepare,
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.unprepare = ams639rq08_unprepare,
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.get_modes = ams639rq08_get_modes,
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};
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static int ams639rq08_bl_update_status(struct backlight_device *bl)
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{
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struct mipi_dsi_device *dsi = bl_get_data(bl);
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u16 brightness = backlight_get_brightness(bl);
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int ret;
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
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if (ret < 0)
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return ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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return 0;
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}
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static int ams639rq08_bl_get_brightness(struct backlight_device *bl)
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{
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struct mipi_dsi_device *dsi = bl_get_data(bl);
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u16 brightness;
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int ret;
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness);
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if (ret < 0)
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return ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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return brightness;
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}
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static const struct backlight_ops ams639rq08_bl_ops = {
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.update_status = ams639rq08_bl_update_status,
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.get_brightness = ams639rq08_bl_get_brightness,
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};
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static struct backlight_device *
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ams639rq08_create_backlight(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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const struct backlight_properties props = {
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.type = BACKLIGHT_RAW,
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.brightness = 1023,
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.max_brightness = 2047,
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};
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return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
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&ams639rq08_bl_ops, &props);
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}
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static int ams639rq08_probe(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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struct ams639rq08 *ctx;
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int ret;
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ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
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if (!ctx)
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return -ENOMEM;
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ret = devm_regulator_bulk_get_const(&dsi->dev,
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ARRAY_SIZE(ams639rq08_supplies),
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ams639rq08_supplies,
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&ctx->supplies);
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if (ret < 0)
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return dev_err_probe(dev, ret, "Failed to get regulators\n");
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ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
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if (IS_ERR(ctx->reset_gpio))
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return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
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"Failed to get reset-gpios\n");
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ctx->dsi = dsi;
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mipi_dsi_set_drvdata(dsi, ctx);
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dsi->lanes = 4;
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dsi->format = MIPI_DSI_FMT_RGB888;
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dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
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MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
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drm_panel_init(&ctx->panel, dev, &ams639rq08_panel_funcs,
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DRM_MODE_CONNECTOR_DSI);
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ctx->panel.prepare_prev_first = true;
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ctx->panel.backlight = ams639rq08_create_backlight(dsi);
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if (IS_ERR(ctx->panel.backlight))
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return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
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"Failed to create backlight\n");
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drm_panel_add(&ctx->panel);
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ret = devm_mipi_dsi_attach(dev, dsi);
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if (ret < 0) {
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drm_panel_remove(&ctx->panel);
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return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
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}
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return 0;
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}
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static void ams639rq08_remove(struct mipi_dsi_device *dsi)
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{
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struct ams639rq08 *ctx = mipi_dsi_get_drvdata(dsi);
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drm_panel_remove(&ctx->panel);
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}
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static const struct of_device_id ams639rq08_of_match[] = {
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{ .compatible = "samsung,ams639rq08" },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, ams639rq08_of_match);
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static struct mipi_dsi_driver ams639rq08_driver = {
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.probe = ams639rq08_probe,
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.remove = ams639rq08_remove,
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.driver = {
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.name = "panel-samsung-ams639rq08",
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.of_match_table = ams639rq08_of_match,
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},
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};
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module_mipi_dsi_driver(ams639rq08_driver);
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MODULE_AUTHOR("Danila Tikhonov <danila@jiaxyga.com>");
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MODULE_DESCRIPTION("DRM driver for SAMSUNG AMS639RQ08 cmd mode dsi panel");
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MODULE_LICENSE("GPL");
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