Message-Id: <20251222-drm-panels-sony-v2-5-82a87465d163@somainline.org>
Date: Mon, 22 Dec 2025 00:32:11 +0100
From: Marijn Suijten <marijn.suijten@...ainline.org>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Sam Ravnborg <sam@...nborg.org>, David Airlie <airlied@...il.com>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
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 Jessica Zhang <jesszhan0024@...il.com>, 
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Cc: ~postmarketos/upstreaming@...ts.sr.ht, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>, 
 Martin Botka <martin.botka@...ainline.org>, 
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 devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, 
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 Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Dmitry Baryshkov <lumag@...nel.org>
Subject: [PATCH v2 05/11] drm/panel: Add panel driver for Samsung SOFEF01
 DDIC

This Samsung SOFEF01-M Display-Driver-IC is used to drive 1080x2520@...z
command-mode DSI panels found in many Sony phones:
- Sony Xperia 5 (kumano bahamut): amb609tc01
- Sony Xperia 10 II (seine pdx201): ams597ut01
- Sony Xperia 10 III (lena pdx213): ams597ut04
- Sony Xperia 10 IV (murray pdx225): ams597ut05
- Sony Xperia 10 V (zambezi pdx235): ams605dk01
- Sony Xperia 10 VI (columbia pdx246): ams605dk01

The amb609tc01 and ams605dk01 come in slightly larger at 6.1" while the
others are 6.0".

A "fake" porch calculation is included to artificially bump the clock
rate necessary to account for "transfer overhead" (DSI packet headers)
since this is missing from the MSM DSI host driver; porches aren't
otherwise used on command-mode panels.

Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
---
 MAINTAINERS                                   |   1 +
 drivers/gpu/drm/panel/Kconfig                 |  18 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 drivers/gpu/drm/panel/panel-samsung-sofef01.c | 463 ++++++++++++++++++++++++++
 4 files changed, 483 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 93468dde9df2..cd2c924749d3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8198,6 +8198,7 @@ DRM DRIVER FOR SAMSUNG SOFEF01 DDIC
 M:	Marijn Suijten <marijn.suijten@...ainline.org>
 S:	Maintained
 F:	Documentation/devicetree/bindings/display/panel/samsung,sofef01-m.yaml
+F:	drivers/gpu/drm/panel/panel-samsung-sofef01.c
 
 DRM DRIVER FOR SHARP MEMORY LCD
 M:	Alex Lanzano <lanzano.alex@...il.com>
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 10381291707e..2f06b48dfb89 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -935,6 +935,24 @@ config DRM_PANEL_SAMSUNG_SOFEF00
 
 	    Samsung AMS628NW01 (found in OnePlus 6, 1080x2280@...z)
 
+config DRM_PANEL_SAMSUNG_SOFEF01
+	tristate "Samsung SOFEF01-M DSI cmd mode panels"
+	depends on GPIOLIB
+	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 6.0"/6.1"
+	  AMOLED DSI command mode panels found in multiple Sony smartphones:
+	  - Sony Xperia 5 (kumano bahamut): amb609tc01
+	  - Sony Xperia 10 II (seine pdx201): ams597ut01
+	  - Sony Xperia 10 III (lena pdx213): ams597ut04
+	  - Sony Xperia 10 IV (murray pdx225): ams597ut05
+	  - Sony Xperia 10 V (zambezi pdx235): ams605dk01
+	  - Sony Xperia 10 VI (columbia pdx246): ams605dk01
+
+	  This Display-IC features a fixed 1080x2520@60 mode.
+
 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 186eb895af21..cbd9ef23b8d8 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -94,6 +94,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01) += panel-samsung-s6e88a0-ams4
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA5X01_AMS561RA01) += panel-samsung-s6e8aa5x01-ams561ra01.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF00) += panel-samsung-sofef00.o
+obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF01) += panel-samsung-sofef01.o
 obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o
 obj-$(CONFIG_DRM_PANEL_SHARP_LQ079L1SX01) += panel-sharp-lq079l1sx01.o
 obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
diff --git a/drivers/gpu/drm/panel/panel-samsung-sofef01.c b/drivers/gpu/drm/panel/panel-samsung-sofef01.c
new file mode 100644
index 000000000000..bb1cefd16fe9
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-samsung-sofef01.c
@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Marijn Suijten <marijn.suijten@...ainline.org>
+ *
+ * Based on the following Sony downstream DTS command sequences:
+ * - Xperia 5 (kumano bahamut): https://github.com/sonyxperiadev/kernel-copyleft/blob/55.2.A.4.xxx/arch/arm64/boot/dts/somc/dsi-panel-sofef01_m-fhd_plus.dtsi
+ * - Xperia 10 II (seine pdx201): https://github.com/sonyxperiadev/kernel-copyleft/blob/59.1.A.2.xxx/arch/arm64/boot/dts/somc/dsi-panel-sofef01_m-fhd_plus.dtsi
+ * - Xperia 10 III (lena pdx213): https://github.com/sonyxperiadev/kernel-copyleft-dts/blob/62.1.A.0.xxx/qcom/dsi-panel-pdx213-amoled-fhd-cmd.dtsi
+ * - Xperia 10 IV (murray pdx225): https://github.com/sonyxperiadev/kernel-copyleft-dts/blob/65.1.A.4.xxx/qcom/dsi-panel-samsung-amoled-fhd-cmd.dtsi
+ * - Xperia 10 V (zambezi pdx235): https://github.com/sonyxperiadev/kernel-copyleft-dts/blob/68.2.A.2.xxx/qcom/dsi-panel-samsung-amoled-fhd-cmd.dtsi
+ * - Xperia 10 VI (columbia pdx246): https://github.com/sonyxperiadev/kernel-copyleft-dts/blob/70.0.A.2.xxx/qcom/dsi-panel-samsung-amoled-fhd-cmd.dtsi
+ */
+
+#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>
+
+#define WRITE_CONTROL_DISPLAY_AOD_LOW BIT(0)
+#define WRITE_CONTROL_DISPLAY_AOD_ON BIT(1)
+#define WRITE_CONTROL_DISPLAY_DIMMING BIT(3)
+#define WRITE_CONTROL_DISPLAY_LOCAL_HBM BIT(4)
+#define WRITE_CONTROL_DISPLAY_BACKLIGHT BIT(5)
+#define WRITE_CONTROL_DISPLAY_HBM GENMASK(6, 7)
+
+/* Only used to send a few differentiating DCS between the two panel variants,
+ * without exactly knowing what they mean.  These do not seem to be related to
+ * panel functionality nor have any visual impact, but they are sent anyway just
+ * in case.
+ */
+enum panel_type {
+	/* Sony Xperia 5 */
+	PANEL_TYPE_TC01,
+	/* Sony Xperia 10 II */
+	PANEL_TYPE_UT01,
+	/* Sony Xperia 10 III */
+	PANEL_TYPE_UT04,
+	/* Sony Xperia 10 IV */
+	PANEL_TYPE_UT05,
+	/* Sony Xperia 10 V and 10 VI */
+	PANEL_TYPE_DK01,
+};
+
+const struct regulator_bulk_data samsung_sofef01_m_supplies[] = {
+	{ .supply = "vddio", /* 1.8 V */ },
+	{ .supply = "vci", /* 3.0 V */ },
+};
+
+struct samsung_sofef01_m {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi;
+	struct regulator_bulk_data *supplies;
+	struct gpio_desc *reset_gpio;
+	const struct drm_display_mode *mode;
+	enum panel_type panel_type;
+};
+
+static inline struct samsung_sofef01_m *
+to_samsung_sofef01_m(struct drm_panel *panel)
+{
+	return container_of(panel, struct samsung_sofef01_m, panel);
+}
+
+static void samsung_sofef01_m_reset(struct samsung_sofef01_m *ctx)
+{
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	usleep_range(10000, 11000);
+	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 samsung_sofef01_m_program(struct samsung_sofef01_m *ctx)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	dsi_ctx.dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+	/* TC01 & UT01 require 10ms, UT04 11ms, and the rest 120ms */
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+
+	if (ctx->panel_type == PANEL_TYPE_TC01 ||
+	    ctx->panel_type == PANEL_TYPE_UT01 ||
+	    ctx->panel_type == PANEL_TYPE_UT04) {
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xdf, 0x03);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe0, 0x01);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+	}
+
+	if (ctx->panel_type == PANEL_TYPE_UT04) {
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfc, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xE1, 0x00, 0x00, 0x02, 0x00, 0x1C, 0x1C,
+					     0x00, 0x00, 0x20, 0x00, 0x00, 0x01, 0x19);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfc, 0xa5, 0xa5);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+	}
+
+	mipi_dsi_dcs_set_column_address_multi(&dsi_ctx, 0, 1080 - 1);
+	mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0, 2520 - 1);
+
+	if (ctx->panel_type == PANEL_TYPE_UT05 || ctx->panel_type == PANEL_TYPE_DK01) {
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x27, 0xf2);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf2, 0x80);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf7, 0x07);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		/* Downstream: ERR_FG Enable */
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe5, 0x15);
+		if (ctx->panel_type == PANEL_TYPE_DK01)
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xed, 0x0f, 0x4c, 0x20);
+		else
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xed, 0x04, 0x4c, 0x20);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x02, 0x8f);
+
+		if (ctx->panel_type == PANEL_TYPE_DK01)
+			/* Downstream Xperia 10 V: FLM1,FLM2 On */
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8f, 0x27, 0x25);
+		else if (0) /* TODO: Both use the DK01 panel */
+			/* Downstream Xperia 10 VI: FLM1 On, FLM2 On */
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8f, 0x27, 0x27);
+		else
+			/* Downsteam: FLM1 on, FLM2 off */
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8f, 0x27, 0x05);
+
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x92, 0x63);
+		/* Downstream: dimming speed setting */
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x63, 0x05);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+	}
+
+	if (ctx->panel_type == PANEL_TYPE_UT05 || ctx->panel_type == PANEL_TYPE_DK01) {
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY,
+					     WRITE_CONTROL_DISPLAY_BACKLIGHT
+					     | WRITE_CONTROL_DISPLAY_DIMMING);
+	} else {
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY,
+					     WRITE_CONTROL_DISPLAY_BACKLIGHT);
+	}
+
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
+
+	if (ctx->panel_type != PANEL_TYPE_UT05 && ctx->panel_type != PANEL_TYPE_DK01) {
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+
+		if (ctx->panel_type == PANEL_TYPE_TC01 || ctx->panel_type == PANEL_TYPE_UT01)
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe, 0x92, 0x29);
+		else if (ctx->panel_type == PANEL_TYPE_UT04)
+			mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe, 0x92, 0x09);
+
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x06);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb6, 0x90);
+		mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5);
+	}
+
+	mipi_dsi_msleep(&dsi_ctx, 110);
+
+	return dsi_ctx.accum_err;
+}
+
+static int samsung_sofef01_m_prepare(struct drm_panel *panel)
+{
+	struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(samsung_sofef01_m_supplies), ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable regulators: %d\n", ret);
+		return ret;
+	}
+
+	samsung_sofef01_m_reset(ctx);
+
+	ret = samsung_sofef01_m_program(ctx);
+	if (ret < 0) {
+		dev_err(dev, "Failed to program panel: %d\n", ret);
+		goto fail;
+	}
+
+	return 0;
+
+fail:
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	regulator_bulk_disable(ARRAY_SIZE(samsung_sofef01_m_supplies), ctx->supplies);
+	return ret;
+}
+
+static int samsung_sofef01_m_enable(struct drm_panel *panel)
+{
+	struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+	mipi_dsi_usleep_range(&dsi_ctx, 16000, 17000);
+
+	return dsi_ctx.accum_err;
+}
+
+static int samsung_sofef01_m_disable(struct drm_panel *panel)
+{
+	struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+	mipi_dsi_usleep_range(&dsi_ctx, 120000, 121000);
+
+	return dsi_ctx.accum_err;
+}
+
+static int samsung_sofef01_m_unprepare(struct drm_panel *panel)
+{
+	struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_usleep_range(&dsi_ctx, 100000, 101000);
+
+	ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	regulator_bulk_disable(ARRAY_SIZE(samsung_sofef01_m_supplies), ctx->supplies);
+
+	return dsi_ctx.accum_err;
+}
+
+static int samsung_sofef01_m_get_modes(struct drm_panel *panel,
+				       struct drm_connector *connector)
+{
+	struct samsung_sofef01_m *ctx = to_samsung_sofef01_m(panel);
+
+	return drm_connector_helper_get_modes_fixed(connector, ctx->mode);
+}
+
+static const struct drm_panel_funcs samsung_sofef01_m_panel_funcs = {
+	.prepare = samsung_sofef01_m_prepare,
+	.enable = samsung_sofef01_m_enable,
+	.disable = samsung_sofef01_m_disable,
+	.unprepare = samsung_sofef01_m_unprepare,
+	.get_modes = samsung_sofef01_m_get_modes,
+};
+
+static int samsung_sofef01_m_bl_update_status(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness = backlight_get_brightness(bl);
+
+	return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
+}
+
+static int samsung_sofef01_m_bl_get_brightness(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness;
+	int ret;
+
+	ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness);
+
+	if (ret < 0)
+		return ret;
+
+	return brightness;
+}
+
+static const struct backlight_ops samsung_sofef01_m_bl_ops = {
+	.update_status = samsung_sofef01_m_bl_update_status,
+	.get_brightness = samsung_sofef01_m_bl_get_brightness,
+};
+
+/*
+ * drm/msm's DSI code does not calculate transfer time but instead relies on
+ * fake porch values (which are not a thing in CMD mode) to represent the
+ * transfer time.
+ *
+ * Use the following expressions based on qcom,mdss-dsi-panel-clockrate from
+ * downstream DT to artificially bump the mode's clock that reflects the
+ * necessary transfer time / overhead.
+ */
+static const unsigned int dsi_lanes = 4;
+static const unsigned int bpp = 24;
+/* qcom,mdss-dsi-panel-clockrate from downstream DT */
+static const unsigned long bitclk_hz = 1132293600;
+static const unsigned long stable_clockrate = bitclk_hz * dsi_lanes / bpp;
+static const unsigned long fake_porch = stable_clockrate / (2520 * 60) - 1080;
+
+/* 61x142mm variant, Sony Xperia 5 */
+static const struct drm_display_mode samsung_sofef01_m_61_142_mode = {
+	.clock = (1080 + fake_porch) * 2520 * 60 / 1000,
+	.hdisplay = 1080,
+	.hsync_start = 1080 + fake_porch,
+	.hsync_end = 1080 + fake_porch,
+	.htotal = 1080 + fake_porch,
+	.vdisplay = 2520,
+	.vsync_start = 2520,
+	.vsync_end = 2520,
+	.vtotal = 2520,
+	.width_mm = 61,
+	.height_mm = 142,
+	.type = DRM_MODE_TYPE_DRIVER,
+};
+
+/* 61x141mm variant, Sony Xperia 10 V and 10 VI */
+static const struct drm_display_mode samsung_sofef01_m_61_141_mode = {
+	.clock = (1080 + fake_porch) * 2520 * 60 / 1000,
+	.hdisplay = 1080,
+	.hsync_start = 1080 + fake_porch,
+	.hsync_end = 1080 + fake_porch,
+	.htotal = 1080 + fake_porch,
+	.vdisplay = 2520,
+	.vsync_start = 2520,
+	.vsync_end = 2520,
+	.vtotal = 2520,
+	.width_mm = 61,
+	.height_mm = 141,
+	.type = DRM_MODE_TYPE_DRIVER,
+};
+
+/* 60x139mm variant, Sony Xperia 10 II, 10 III and 10 IV */
+static const struct drm_display_mode samsung_sofef01_m_60_139_mode = {
+	.clock = (1080 + fake_porch) * 2520 * 60 / 1000,
+	.hdisplay = 1080,
+	.hsync_start = 1080 + fake_porch,
+	.hsync_end = 1080 + fake_porch,
+	.htotal = 1080 + fake_porch,
+	.vdisplay = 2520,
+	.vsync_start = 2520,
+	.vsync_end = 2520,
+	.vtotal = 2520,
+	.width_mm = 60,
+	.height_mm = 139,
+	.type = DRM_MODE_TYPE_DRIVER,
+};
+
+static int samsung_sofef01_m_probe(struct mipi_dsi_device *dsi)
+{
+	const struct backlight_properties props = {
+		.type = BACKLIGHT_RAW,
+		.brightness = 100,
+		.max_brightness = 1023,
+	};
+	struct device *dev = &dsi->dev;
+	struct samsung_sofef01_m *ctx;
+	int ret;
+
+	ctx = devm_drm_panel_alloc(dev, struct samsung_sofef01_m, panel,
+				   &samsung_sofef01_m_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
+
+	ret = devm_regulator_bulk_get_const(
+		dev,
+		ARRAY_SIZE(samsung_sofef01_m_supplies),
+		samsung_sofef01_m_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;
+	ctx->panel_type = (enum panel_type)of_device_get_match_data(dev);
+	if (ctx->panel_type == PANEL_TYPE_TC01)
+		ctx->mode = &samsung_sofef01_m_61_142_mode;
+	else if (ctx->panel_type == PANEL_TYPE_DK01)
+		ctx->mode = &samsung_sofef01_m_61_141_mode;
+	else
+		ctx->mode = &samsung_sofef01_m_60_139_mode;
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	dsi->lanes = 4;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+	ctx->panel.prepare_prev_first = true;
+
+	ctx->panel.backlight = devm_backlight_device_register(
+		dev, dev_name(dev), dev, dsi,
+		&samsung_sofef01_m_bl_ops,
+		&props);
+	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);
+		drm_panel_remove(&ctx->panel);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void samsung_sofef01_m_remove(struct mipi_dsi_device *dsi)
+{
+	struct samsung_sofef01_m *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 samsung_sofef01_m_of_match[] = {
+	{ .compatible = "samsung,sofef01-m-amb609tc01",
+	  .data = (void *)PANEL_TYPE_TC01 },
+	{ .compatible = "samsung,sofef01-m-ams597ut01",
+	  .data = (void *)PANEL_TYPE_UT01 },
+	{ .compatible = "samsung,sofef01-m-ams597ut04",
+	  .data = (void *)PANEL_TYPE_UT04 },
+	{ .compatible = "samsung,sofef01-m-ams597ut05",
+	  .data = (void *)PANEL_TYPE_UT05 },
+	{ .compatible = "samsung,sofef01-m-ams605dk01",
+	  .data = (void *)PANEL_TYPE_DK01 },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, samsung_sofef01_m_of_match);
+
+static struct mipi_dsi_driver samsung_sofef01_m_driver = {
+	.probe = samsung_sofef01_m_probe,
+	.remove = samsung_sofef01_m_remove,
+	.driver = {
+		.name = "panel-samsung-sofef01-m",
+		.of_match_table = samsung_sofef01_m_of_match,
+	},
+};
+module_mipi_dsi_driver(samsung_sofef01_m_driver);
+
+MODULE_AUTHOR("Marijn Suijten <marijn.suijten@...ainline.org>");
+MODULE_DESCRIPTION("DRM panel driver for Samsung SOFEF01-M Display-Driver-IC panels");
+MODULE_LICENSE("GPL");

-- 
2.52.0

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