Add Visionox G2647FB105 panel support

The Visionox G2647FB105 is a 6.47 inch 1080x2340 MIPI-DSI CMD mode

AMOLED panel used in:
- Xiaomi Mi Note 10 / CC9 Pro (sm7150-xiaomi-tucana)
- Xiaomi Mi Note 10 Lite (sm7150-xiaomi-toco)

Add a dt-binding for it.

Signed-off-by Alexander Baransky <[email protected]>

---

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml new file +8 -0

+properties:
+  compatible:
+    const: visionox,g2647fb105
+
+  reg:
+    maxItems: 1
+
+  vdd3p3-supply:

Quoted 1 line · Alexander Baransky

The Visionox G2647FB105 is a 6.47 inch 1080x2340 MIPI-DSI CMD mode

"Add a DT binding for the Visionox....."

Quoted 5 lines

AMOLED panel used in:
- Xiaomi Mi Note 10 / CC9 Pro (sm7150-xiaomi-tucana)
- Xiaomi Mi Note 10 Lite (sm7150-xiaomi-toco)

Add a dt-binding for it.

And drop this sentence.

Quoted 3 lines

Signed-off-by Alexander Baransky <[email protected]>

---

...

Quoted 13 lines

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml new file +13 -0

+properties:
+  compatible:
+    const: visionox,g2647fb105
+
+  reg:
+    maxItems: 1
+
+  vdd3p3-supply:
+    description: 3.3V source voltage rail
+
+  vddio-supply:
+    description: I/O source voltage rail
+

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml line 35

Quoted 5 lines

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml new file +5 -0

+  vsn-supply:
+    description: Negative source voltage rail
+
+  vsp-supply:
+    description: Positive source voltage rail

Are you sure these are real voltage rails on the device? Weirdly similar to some old Samsung AMOLED panels...

Quoted 1 line · Alexander Baransky

The Visionox G2647FB105 is a 6.47 inch 1080x2340 MIPI-DSI CMD mode

"Add a DT binding for the Visionox....."

Quoted 5 lines

AMOLED panel used in:
- Xiaomi Mi Note 10 / CC9 Pro (sm7150-xiaomi-tucana)
- Xiaomi Mi Note 10 Lite (sm7150-xiaomi-toco)

Add a dt-binding for it.

And drop this sentence.

Quoted 2 lines

Signed-off-by Alexander Baransky<[email protected]>

---

...

Quoted 12 lines

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml new file +12 -0

+properties:
+  compatible:
+    const: visionox,g2647fb105
+
+  reg:
+    maxItems: 1
+
+  vdd3p3-supply:
+    description: 3.3V source voltage rail
+
+  vddio-supply:
+    description: I/O source voltage rail

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml line 35

Quoted 6 lines

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml new file +6 -0

+
+  vsn-supply:
+    description: Negative source voltage rail
+
+  vsp-supply:
+    description: Positive source voltage rail

Are you sure these are real voltage rails on the device? Weirdly similar to some old Samsung AMOLED panels...

Best regards,
Krzysztof

Quoted 4 lines

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml line 35

Quoted 2 lines

Documentation/devicetree/bindings/display/panel/visionox,g2647fb105.yaml new file +2 -0

+  vsp-supply:
+    description: Positive source voltage rail

Are you sure these are real voltage rails on the device? Weirdly similar to some old Samsung AMOLED panels...

Hello Krzysztof,

I was somewhat intrigued by your observation, especially since I have some schematics for this device. The patch correctly adds four regulators – ibb, lab, vdd (3p0), and vio (1p8).

This situation arises from Xiaomi’s tendency to use different panels in various revisions of the same device. Although, AFAIK, the sm7150-xiaomi-toco/tucana was released with only one possible variation (which this series adds), the sm7150-xiaomi-davinci offers a different perspective. The latter was initially produced with a samsung,ams639rq08 panel (which I had added previously), yet official service centers have replaced the factory panel with the visionox,g1639fp106 during repairs. This suggests that, in terms of power configuration, the samsung,ams639rq08 and the visionox,g1639fp106 panels are effectively identical.

It is therefore likely that the visionox,g2647fb105 from this series follows the same way.

Nevertheless, it is reassuring that I can confirm these findings with the schematics rather than relying on mere guesswork xD

Add the driver for Visionox G2647FB105 6.47" FHD Plus CMD mode AMOLED panel support found in:
- Xiaomi Mi Note 10 / CC9 Pro (sm7150-xiaomi-tucana)
- Xiaomi Mi Note 10 Lite (sm7150-xiaomi-toco)

Signed-off-by Alexander Baransky<[email protected]>

---
  drivers/gpu/drm/panel/Kconfig                 |   9 +
  drivers/gpu/drm/panel/Makefile                |   1 +
  .../gpu/drm/panel/panel-visionox-g2647fb105.c | 277 ++++++++++++++++++
  3 files changed, 287 insertions(+)

create mode 100644 drivers/gpu/drm/panel/panel-visionox-g2647fb105.c

drivers/gpu/drm/panel/Kconfig +9 -0

index d7469c565d1d..c4de2749260d 100644
@@ -977,6 +977,15 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
  	  Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
  	  Video Mode panel
 
+config DRM_PANEL_VISIONOX_G2647FB105
+	tristate "Visionox G2647FB105"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y here if you want to enable support for the Visionox
+	  G2647FB105 (2340x1080@60Hz) AMOLED DSI cmd mode panel.
+
  config DRM_PANEL_VISIONOX_R66451
  	tristate "Visionox R66451"
  	depends on OF

drivers/gpu/drm/panel/Makefile +1 -0

index 7dcf72646cac..31dc893e0b16 100644
@@ -99,6 +99,7 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
  obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
  obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
  obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
+obj-$(CONFIG_DRM_PANEL_VISIONOX_G2647FB105) += panel-visionox-g2647fb105.o
  obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o
  obj-$(CONFIG_DRM_PANEL_VISIONOX_VTDR6130) += panel-visionox-vtdr6130.o
  obj-$(CONFIG_DRM_PANEL_VISIONOX_R66451) += panel-visionox-r66451.o

drivers/gpu/drm/panel/panel-visionox-g2647fb105.c new file +202 -0

new file mode 100644
index 000000000000..cf80310de13c
@@ -0,0 +1,277 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
+ *   Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ *   Copyright (c) 2025, Alexander Baransky<[email protected]>
+ */
+
+#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 <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct visionox_g2647fb105 {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi;
+	struct gpio_desc *reset_gpio;
+	struct regulator_bulk_data supplies[4];
+};
+
+static inline
+struct visionox_g2647fb105 *to_visionox_g2647fb105(struct drm_panel *panel)
+{
+	return container_of(panel, struct visionox_g2647fb105, panel);
+}
+
+static void visionox_g2647fb105_reset(struct visionox_g2647fb105 *ctx)
+{
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	usleep_range(1000, 2000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	usleep_range(10000, 11000);
+}
+
+static int visionox_g2647fb105_on(struct visionox_g2647fb105 *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi;
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
+
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x70, 0x04);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x40);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x4d, 0x32);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x40);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe, 0x17);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbf, 0xbb);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc0, 0xdd);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1, 0xff);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xd0);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x03, 0x24);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x04, 0x03);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x08);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
+
+	mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+	mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0x0000);
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 100);
+
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+
+	return dsi_ctx.accum_err;
+}
+
+static int visionox_g2647fb105_off(struct visionox_g2647fb105 *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi;
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
+
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 50);
+
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 20);
+
+	return dsi_ctx.accum_err;
+}
+
+static int visionox_g2647fb105_prepare(struct drm_panel *panel)
+{
+	struct visionox_g2647fb105 *ctx = to_visionox_g2647fb105(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable regulators: %d\n", ret);
+		return ret;
+	}
+
+	visionox_g2647fb105_reset(ctx);
+
+	ret = visionox_g2647fb105_on(ctx);
+	if (ret < 0) {
+		dev_err(dev, "Failed to initialize panel: %d\n", ret);
+		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+		regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int visionox_g2647fb105_unprepare(struct drm_panel *panel)
+{
+	struct visionox_g2647fb105 *ctx = to_visionox_g2647fb105(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	ret = visionox_g2647fb105_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(ctx->supplies), ctx->supplies);
+
+	return 0;
+}
+
+static const struct drm_display_mode visionox_g2647fb105_mode = {
+	.clock = (1080 + 28 + 4 + 36) * (2340 + 8 + 4 + 4) * 60 / 1000,
+	.hdisplay = 1080,
+	.hsync_start = 1080 + 28,
+	.hsync_end = 1080 + 28 + 4,
+	.htotal = 1080 + 28 + 4 + 36,
+	.vdisplay = 2340,
+	.vsync_start = 2340 + 8,
+	.vsync_end = 2340 + 8 + 4,
+	.vtotal = 2340 + 8 + 4 + 4,
+	.width_mm = 69,
+	.height_mm = 149,
+};
+
+static int visionox_g2647fb105_get_modes(struct drm_panel *panel,
+					struct drm_connector *connector)
+{
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, &visionox_g2647fb105_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 visionox_g2647fb105_panel_funcs = {
+	.prepare = visionox_g2647fb105_prepare,
+	.unprepare = visionox_g2647fb105_unprepare,
+	.get_modes = visionox_g2647fb105_get_modes,
+};
+
+static int visionox_g2647fb105_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 visionox_g2647fb105_bl_ops = {
+	.update_status = visionox_g2647fb105_bl_update_status,
+};
+
+static struct backlight_device *
+visionox_g2647fb105_create_backlight(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	const struct backlight_properties props = {
+		.type = BACKLIGHT_RAW,
+		.brightness = 1023,
+		.max_brightness = 2047,
+	};
+
+	return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+					      &visionox_g2647fb105_bl_ops, &props);
+}
+
+static int visionox_g2647fb105_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct visionox_g2647fb105 *ctx;

drivers/gpu/drm/panel/panel-visionox-g2647fb105.c new file +65 -0

+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->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;
+
+	ctx->panel.prepare_prev_first = true;
+
+	drm_panel_init(&ctx->panel, dev, &visionox_g2647fb105_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
+
+	ctx->panel.backlight = visionox_g2647fb105_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 visionox_g2647fb105_remove(struct mipi_dsi_device *dsi)
+{
+	struct visionox_g2647fb105 *ctx = mipi_dsi_get_drvdata(dsi);
+	drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id visionox_g2647fb105_of_match[] = {
+	{ .compatible = "visionox,g2647fb105" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, visionox_g2647fb105_of_match);
+
+static struct mipi_dsi_driver visionox_g2647fb105_driver = {
+	.probe = visionox_g2647fb105_probe,
+	.remove = visionox_g2647fb105_remove,
+	.driver = {
+		.name = "panel-visionox-g2647fb105",
+		.of_match_table = visionox_g2647fb105_of_match,
+	},
+};
+module_mipi_dsi_driver(visionox_g2647fb105_driver);
+
+MODULE_AUTHOR("Alexander Baransky<[email protected]>");
+MODULE_DESCRIPTION("DRM driver for Visionox G2647FB105 AMOLED DSI panel");
+MODULE_LICENSE("GPL");