[PATCH v2 0/2] Add support for Zhunyi Z40046 LCD panel

[PATCH v2 0/2] Add support for Zhunyi Z40046 LCD panel

[Luca Leonardo Scorcia]

The Zhunyi Z40046 is a 480x800 24-bit WVGA DSI panel based on the
Fitipower JD9161Z DSI controller found in the Xiaomi Mi Smart Clock
x04g, apparently in two different variants.

The Fitipower JD9161Z LCD driver IC is very similar to the Jadard
JD9365DA-H3, it just uses different initialization sequences. A
partial data sheet is available at [1].

The two initialization sequences for the panel have been extracted from
Android original firmware for the Xiaomi Smart Clock.

Variant -ctc tested on device. Variant -boe not tested.

Changes in v2:
- Double checked and fixed some mistakes in the reverse engineered
  initialization sequences
- Changed the generic variant names -v1, -v2 into -ctc and -boe, as
  they're described in the Android logs
- Fix alphabetical order in bindings and correct company name

v1:
https://lore.kernel.org/all/20260305195650.119196-1-l.scorcia@gmail.com/

[1] https://github.com/QuecPython/QuecPython_lib_bundles/blob/master/libraries/LCD/JD91651z/JD9161Z_DS_Preliminary_V0.01_20180803(1).pdf

Luca Leonardo Scorcia (2):
  dt-bindings: display: panel: Add compatibles for Zhunyi Z40046
  drm/panel: jd9365da: Support for Zhunyi Z40046 panels

 .../display/panel/jadard,jd9365da-h3.yaml     |   2 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 .../gpu/drm/panel/panel-jadard-jd9365da-h3.c  | 313 ++++++++++++++++++
 3 files changed, 317 insertions(+)

-- 
2.43.0

[PATCH v2 1/2] dt-bindings: display: panel: Add compatibles for Zhunyi Z40046

[Luca Leonardo Scorcia]

The Zhunyi Z40046 is a 480x800 24-bit WVGA DSI panel based on the
Fitipower JD9161Z DSI controller found in the Xiaomi Mi Smart Clock
x04g, apparently in two different variants.

The Fitipower JD9161Z LCD driver IC is very similar to the Jadard
JD9365DA-H3, it just uses a different initialization sequence.

Since this is the first supported device from this vendor, document its
name to the vendor-prefixes.yaml file as well.

Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
---
 .../devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml   | 2 ++
 Documentation/devicetree/bindings/vendor-prefixes.yaml          | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml b/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
index e39efb44ed42..158388a284d9 100644
--- a/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
+++ b/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
@@ -24,6 +24,8 @@ properties:
           - radxa,display-10hd-ad001
           - radxa,display-8hd-ad002
           - taiguanck,xti05101-01a
+          - zhunyikeji,z40046-ctc
+          - zhunyikeji,z40046-boe
       - const: jadard,jd9365da-h3
 
   reg:
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 6339988e3805..debaec59e9a0 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -1923,6 +1923,8 @@ patternProperties:
     description: Zealz
   "^zeitec,.*":
     description: ZEITEC Semiconductor Co., LTD.
+  "^zhunyikeji,.*":
+    description: Shenzhen Zhunyi Technology Co., Ltd.
   "^zidoo,.*":
     description: Shenzhen Zidoo Technology Co., Ltd.
   "^zii,.*":
-- 
2.43.0

[PATCH v2 2/2] drm/panel: jd9365da: Support for Zhunyi Z40046 panels

[Luca Leonardo Scorcia]

The Zhunyi Z40046 is a 480x800 24-bit WVGA DSI panel based on the
Fitipower JD9161Z DSI controller found in the Xiaomi Mi Smart Clock
x04g, apparently in two different variants.

The Fitipower JD9161Z LCD driver IC is very similar to the Jadard
JD9365DA-H3, it just uses different initialization sequences.

The two initialization sequences for the panel have been extracted from
Android original firmware for the Xiaomi Smart Clock.

Variant -ctc uses a CTC LCD panel and has been tested on device.
Variant -boe uses a BOE LCD panel and has not been tested.

Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
---
 .../gpu/drm/panel/panel-jadard-jd9365da-h3.c  | 313 ++++++++++++++++++
 1 file changed, 313 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
index c33c611e03c0..7da064567248 100644
--- a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
+++ b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
@@ -46,11 +46,22 @@ struct jadard {
 	struct gpio_desc *reset;
 };
 
+#define JD9161Z_DCS_SWITCH_PAGE		0xde
+
+#define jd9161z_switch_page(dsi_ctx, page) \
+	mipi_dsi_dcs_write_seq_multi(dsi_ctx, JD9161Z_DCS_SWITCH_PAGE, (page))
+
 #define JD9365DA_DCS_SWITCH_PAGE	0xe0
 
 #define jd9365da_switch_page(dsi_ctx, page) \
 	mipi_dsi_dcs_write_seq_multi(dsi_ctx, JD9365DA_DCS_SWITCH_PAGE, (page))
 
+static void jd9161z_enable_standard_cmds(struct mipi_dsi_multi_context *dsi_ctx)
+{
+	// Enable access to DCS and internal commands
+	mipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xdf, 0x91, 0x62, 0xf3);
+}
+
 static void jadard_enable_standard_cmds(struct mipi_dsi_multi_context *dsi_ctx)
 {
 	mipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xe1, 0x93);
@@ -1606,6 +1617,300 @@ static const struct jadard_panel_desc taiguan_xti05101_01a_desc = {
 	.enter_sleep_to_reset_down_delay_ms = 100,
 };
 
+// Sequence retrieved from Xiaomi Mi Smart Clock x04g kernel in boot.bin
+static int zhunyi_z40046_init_cmds_ctc(struct jadard *jadard_data)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = jadard_data->dsi };
+
+	// Init configuration sequence
+	jd9161z_switch_page(&dsi_ctx, 0x00);
+	jd9161z_enable_standard_cmds(&dsi_ctx);
+
+	// GAMMA_SET (pos/neg voltage of gamma power)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb7,
+		0x10, 0x04, 0x86, 0x00, 0x1b, 0x35);
+
+	// DCDC_SEL (power mode and charge pump settings)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbb,
+		0x69, 0x0b, 0x30, 0xb2, 0xb2, 0xc0, 0xe0, 0x20,
+		0xf0, 0x50, 0x60);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	// VDDD_CTRL (control logic voltage setting)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbc,
+		0x73, 0x14);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	// SETRGBCYC (display waveform cycle of RGB mode)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3,
+		0x74, 0x04, 0x08, 0x0e, 0x00, 0x0e, 0x0c, 0x08,
+		0x0e, 0x00, 0x0e, 0x82, 0x0a, 0x82);
+
+	// SET_TCON (timing control setting)
+	// param[0][5:4] + param[1]: number of panel lines / 2
+	//   400 = 01 1001 0000 -> 0x10, 0x90
+	// param[2]: scan line time width
+	// param[3]: vfp: 14
+	// param[4]: vs + vbp - 1: 11
+	// param[5]: hbp: 4
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4,
+		0x10, 0x90, 0x92, 0x0e, 0x0b, 0x04);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	// SET_R_GAMMA (set red gamma output voltage)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8,
+		0x7e, 0x76, 0x68, 0x57, 0x4c, 0x39, 0x3a, 0x23,
+		0x3d, 0x3d, 0x40, 0x61, 0x54, 0x64, 0x5d, 0x62,
+		0x5a, 0x50, 0x32, 0x7e, 0x76, 0x68, 0x57, 0x4c,
+		0x39, 0x3a, 0x23, 0x3d, 0x3d, 0x40, 0x61, 0x54,
+		0x64, 0x5d, 0x62, 0x5a, 0x50, 0x32);
+
+	// SET_GIP_L (CGOUTx_L signal mapping, gs_panel = 0)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd0,
+		0x1f, 0x0a, 0x08, 0x06, 0x04, 0x1f, 0x00, 0x1f,
+		0x17, 0x1f, 0x18, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
+
+	// SET_GIP_R (CGOUTx_R signal mapping, gs_panel = 0)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd1,
+		0x1f, 0x0b, 0x09, 0x07, 0x05, 0x1f, 0x01, 0x1f,
+		0x17, 0x1f, 0x18, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
+
+	// SETGIP1 (GIP signal timing 1)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4,
+		0x10, 0x00, 0x00, 0x03, 0x60, 0x05, 0x10, 0x00,
+		0x02, 0x06, 0x68, 0x00, 0x6c, 0x00, 0x00, 0x00,
+		0x00, 0x06, 0x78, 0x71, 0x07, 0x06, 0x68, 0x0c,
+		0x25, 0x00, 0x63, 0x03, 0x00);
+
+	// SETGIP2 (GIP signal timing 1)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd5,
+		0x20, 0x10, 0x8c, 0x18, 0x00, 0x80, 0x00, 0x08,
+		0x00, 0x00, 0x06, 0x60, 0x00, 0x81, 0x70, 0x02,
+		0x30, 0x01, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00,
+		0x03, 0x60, 0x83, 0x90, 0x00, 0x00, 0x03, 0x4f,
+		0x03, 0x00, 0x1f, 0x3f, 0x00, 0x00, 0x00, 0x00);
+
+	jd9161z_switch_page(&dsi_ctx, 0x04);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	// Unknown command
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0,
+		0x24, 0x01);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	jd9161z_switch_page(&dsi_ctx, 0x02);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	// SETRGBCYC2 (RGB IF source switch control timing)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1,
+		0x71);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	// Unknown command
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2,
+		0x00, 0x18, 0x08, 0x1e, 0x25, 0x7c, 0xc7);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	jd9161z_switch_page(&dsi_ctx, 0x00);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+
+	mipi_dsi_msleep(&dsi_ctx, 1);
+
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 5);
+
+	return dsi_ctx.accum_err;
+};
+
+static const struct jadard_panel_desc zhunyi_z40046_ctc_desc = {
+	.mode = {
+		.clock		= (480 + 20 + 20 + 20) * (800 + 14 + 4 + 8) * 60 / 1000,
+
+		.hdisplay	= 480,
+		.hsync_start	= 480 + 20,
+		.hsync_end	= 480 + 20 + 20,
+		.htotal		= 480 + 20 + 20 + 20,
+
+		.vdisplay	= 800,
+		.vsync_start	= 800 + 14,
+		.vsync_end	= 800 + 14 + 4,
+		.vtotal		= 800 + 14 + 4 + 8,
+
+		.width_mm	= 52,
+		.height_mm	= 86,
+		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+		.type		= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+	},
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+		MIPI_DSI_MODE_LPM,
+	.lp11_before_reset = true,
+	.reset_before_power_off_vcioo = true,
+	.vcioo_to_lp11_delay_ms = 5,
+	.lp11_to_reset_delay_ms = 10,
+	.backlight_off_to_display_off_delay_ms = 100,
+	.display_off_to_enter_sleep_delay_ms = 50,
+	.enter_sleep_to_reset_down_delay_ms = 100,
+	.init = zhunyi_z40046_init_cmds_ctc,
+};
+
+// Sequence retrieved from Xiaomi Mi Smart Clock x04g kernel in boot.bin
+static int zhunyi_z40046_init_cmds_boe(struct jadard *jadard_data)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = jadard_data->dsi };
+
+	// Init configuration sequence
+	jd9161z_switch_page(&dsi_ctx, 0x00);
+	jd9161z_enable_standard_cmds(&dsi_ctx);
+
+	// GAMMA_SET (pos/neg voltage of gamma power)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb7,
+		0x10, 0x08, 0x42, 0x00, 0x56, 0x42);
+
+	// DCDC_SEL (power mode and charge pump settings)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbb,
+		0x52, 0x0f, 0xb2, 0xb2, 0xb2, 0xc0, 0xd0, 0x50,
+		0xf0, 0x40, 0x50);
+
+	// VDDD_CTRL (control logic voltage setting)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbc,
+		0x73, 0x14);
+
+	// SETRGBCYC (display waveform cycle of RGB mode)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3,
+		0x04, 0x07, 0x0b, 0x17, 0x00, 0x17, 0x04, 0x17,
+		0x17, 0x00, 0x17, 0x82, 0x0b, 0x82);
+
+	// SET_TCON (timing control setting)
+	// param[0][5:4] + param[1]: number of panel lines / 2
+	//   400 = 01 1001 0000 -> 0x10, 0x90
+	// param[2]: scan line time width
+	// param[3]: vfp: 14
+	// param[4]: vs + vbp - 1: 11
+	// param[5]: hbp: 6
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4,
+		0x10, 0x90, 0x92, 0x0e, 0x06);
+
+	// SET_R_GAMMA (set red gamma output voltage)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8,
+		0x7f, 0x78, 0x69, 0x56, 0x47, 0x33, 0x34, 0x1e,
+		0x3b, 0x3e, 0x43, 0x67, 0x5d, 0x6f, 0x68, 0x70,
+		0x6a, 0x61, 0x3c, 0x7f, 0x78, 0x69, 0x56, 0x47,
+		0x33, 0x34, 0x1e, 0x3b, 0x3e, 0x43, 0x67, 0x5d,
+		0x6f, 0x68, 0x70, 0x6a, 0x61, 0x3c);
+
+	// SET_GIP_L (CGOUTx_L signal mapping, gs_panel = 0)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd0,
+		0x1f, 0x1e, 0x07, 0x05, 0x01, 0x1f, 0x1f, 0x1f,
+		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
+
+	// SET_GIP_R (CGOUTx_R signal mapping, gs_panel = 0)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd1,
+		0x1f, 0x1e, 0x06, 0x04, 0x00, 0x1f, 0x1f, 0x1f,
+		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
+
+	// SET_GIP_L_GS (CGOUTx_L signal mapping, gs_panel = 1)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2,
+		0x1f, 0x1f, 0x04, 0x06, 0x00, 0x1e, 0x1f, 0x1f,
+		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
+
+	// SET_GIP_R_GS (CGOUTx_R signal mapping, gs_panel = 1)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd3,
+		0x1f, 0x1f, 0x05, 0x07, 0x01, 0x1e, 0x1f, 0x1f,
+		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
+
+	// SETGIP1 (GIP signal timing 1)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4,
+		0x30, 0x00, 0x00, 0x00, 0x00, 0x01, 0x10, 0x00,
+		0x03, 0x03, 0x68, 0x03, 0x40, 0x05, 0x00, 0x00,
+		0x00, 0xcc, 0x2d, 0x31, 0x02, 0x03, 0x68, 0x0c,
+		0x25, 0x00, 0x63, 0x03, 0x00);
+
+	// SETGIP2 (GIP signal timing 1)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd5,
+		0x30, 0x08, 0x80, 0x18, 0x00, 0x00, 0x00, 0x18,
+		0x00, 0x00, 0x06, 0x60, 0x00, 0x07, 0x50, 0x00,
+		0x33, 0xc0, 0x00, 0x60, 0xc0, 0x00, 0x00, 0x00,
+		0x03, 0x60, 0x06, 0x10, 0x00, 0x00, 0x0f, 0x4f,
+		0x00, 0x10, 0x1f, 0x3f);
+
+	jd9161z_switch_page(&dsi_ctx, 0x02);
+
+	// SETRGBCYC2 (RGB IF source switch control timing)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1,
+		0x60);
+
+	// Unknown command
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2,
+		0x00, 0x18, 0x08, 0x1e, 0x25, 0x7c, 0xc7);
+
+	jd9161z_switch_page(&dsi_ctx, 0x00);
+
+	// GAS_CTRL (GAS function control)
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe,
+		0x4e);
+
+	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+
+	mipi_dsi_msleep(&dsi_ctx, 10);
+
+	return dsi_ctx.accum_err;
+};
+
+static const struct jadard_panel_desc zhunyi_z40046_boe_desc = {
+	.mode = {
+		.clock		= (480 + 20 + 20 + 20) * (800 + 14 + 4 + 8) * 60 / 1000,
+
+		.hdisplay	= 480,
+		.hsync_start	= 480 + 20,
+		.hsync_end	= 480 + 20 + 20,
+		.htotal		= 480 + 20 + 20 + 20,
+
+		.vdisplay	= 800,
+		.vsync_start	= 800 + 14,
+		.vsync_end	= 800 + 14 + 4,
+		.vtotal		= 800 + 14 + 4 + 8,
+
+		.width_mm	= 52,
+		.height_mm	= 86,
+		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+		.type		= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+	},
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+		MIPI_DSI_MODE_LPM,
+	.lp11_before_reset = true,
+	.reset_before_power_off_vcioo = true,
+	.vcioo_to_lp11_delay_ms = 5,
+	.lp11_to_reset_delay_ms = 10,
+	.backlight_off_to_display_off_delay_ms = 100,
+	.display_off_to_enter_sleep_delay_ms = 50,
+	.enter_sleep_to_reset_down_delay_ms = 100,
+	.init = zhunyi_z40046_init_cmds_boe,
+};
+
 static int jadard_dsi_probe(struct mipi_dsi_device *dsi)
 {
 	struct device *dev = &dsi->dev;
@@ -1707,6 +2012,14 @@ static const struct of_device_id jadard_of_match[] = {
 		.compatible = "taiguanck,xti05101-01a",
 		.data = &taiguan_xti05101_01a_desc
 	},
+	{
+		.compatible = "zhunyikeji,z40046-ctc",
+		.data = &zhunyi_z40046_ctc_desc
+	},
+	{
+		.compatible = "zhunyikeji,z40046-boe",
+		.data = &zhunyi_z40046_boe_desc
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, jadard_of_match);
-- 
2.43.0

Re: [PATCH v2 1/2] dt-bindings: display: panel: Add compatibles for Zhunyi Z40046

[Conor Dooley]

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On Fri, Apr 17, 2026 at 11:46:30AM +0100, Luca Leonardo Scorcia wrote:
> The Zhunyi Z40046 is a 480x800 24-bit WVGA DSI panel based on the
> Fitipower JD9161Z DSI controller found in the Xiaomi Mi Smart Clock
> x04g, apparently in two different variants.
> 
> The Fitipower JD9161Z LCD driver IC is very similar to the Jadard
> JD9365DA-H3, it just uses a different initialization sequence.
> 
> Since this is the first supported device from this vendor, document its
> name to the vendor-prefixes.yaml file as well.
> 
> Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>

Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

> ---
>  .../devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml   | 2 ++
>  Documentation/devicetree/bindings/vendor-prefixes.yaml          | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml b/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
> index e39efb44ed42..158388a284d9 100644
> --- a/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/jadard,jd9365da-h3.yaml
> @@ -24,6 +24,8 @@ properties:
>            - radxa,display-10hd-ad001
>            - radxa,display-8hd-ad002
>            - taiguanck,xti05101-01a
> +          - zhunyikeji,z40046-ctc
> +          - zhunyikeji,z40046-boe
>        - const: jadard,jd9365da-h3
>  
>    reg:
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> index 6339988e3805..debaec59e9a0 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> @@ -1923,6 +1923,8 @@ patternProperties:
>      description: Zealz
>    "^zeitec,.*":
>      description: ZEITEC Semiconductor Co., LTD.
> +  "^zhunyikeji,.*":
> +    description: Shenzhen Zhunyi Technology Co., Ltd.
>    "^zidoo,.*":
>      description: Shenzhen Zidoo Technology Co., Ltd.
>    "^zii,.*":
> -- 
> 2.43.0
> 

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Re: [PATCH v2 2/2] drm/panel: jd9365da: Support for Zhunyi Z40046 panels

[Dmitry Baryshkov]

On Fri, Apr 17, 2026 at 11:46:31AM +0100, Luca Leonardo Scorcia wrote:
> The Zhunyi Z40046 is a 480x800 24-bit WVGA DSI panel based on the
> Fitipower JD9161Z DSI controller found in the Xiaomi Mi Smart Clock
> x04g, apparently in two different variants.
> 
> The Fitipower JD9161Z LCD driver IC is very similar to the Jadard
> JD9365DA-H3, it just uses different initialization sequences.
> 
> The two initialization sequences for the panel have been extracted from
> Android original firmware for the Xiaomi Smart Clock.
> 
> Variant -ctc uses a CTC LCD panel and has been tested on device.
> Variant -boe uses a BOE LCD panel and has not been tested.
> 
> Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
> ---
>  .../gpu/drm/panel/panel-jadard-jd9365da-h3.c  | 313 ++++++++++++++++++
>  1 file changed, 313 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
> index c33c611e03c0..7da064567248 100644
> --- a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
> +++ b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
> @@ -46,11 +46,22 @@ struct jadard {
>  	struct gpio_desc *reset;
>  };
>  
> +#define JD9161Z_DCS_SWITCH_PAGE		0xde
> +
> +#define jd9161z_switch_page(dsi_ctx, page) \
> +	mipi_dsi_dcs_write_seq_multi(dsi_ctx, JD9161Z_DCS_SWITCH_PAGE, (page))
> +

Just my 2c. The code looks similar, but it's true for large enough
number of controllers. Please consider splitting this to a separate
driver. It would result in a cleaner and easier to follow code for both
of them.

>  #define JD9365DA_DCS_SWITCH_PAGE	0xe0
>  
>  #define jd9365da_switch_page(dsi_ctx, page) \
>  	mipi_dsi_dcs_write_seq_multi(dsi_ctx, JD9365DA_DCS_SWITCH_PAGE, (page))
>  
> +static void jd9161z_enable_standard_cmds(struct mipi_dsi_multi_context *dsi_ctx)
> +{
> +	// Enable access to DCS and internal commands
> +	mipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xdf, 0x91, 0x62, 0xf3);
> +}
> +
>  static void jadard_enable_standard_cmds(struct mipi_dsi_multi_context *dsi_ctx)
>  {
>  	mipi_dsi_dcs_write_seq_multi(dsi_ctx, 0xe1, 0x93);
> @@ -1606,6 +1617,300 @@ static const struct jadard_panel_desc taiguan_xti05101_01a_desc = {
>  	.enter_sleep_to_reset_down_delay_ms = 100,
>  };
>  
> +// Sequence retrieved from Xiaomi Mi Smart Clock x04g kernel in boot.bin
> +static int zhunyi_z40046_init_cmds_ctc(struct jadard *jadard_data)
> +{
> +	struct mipi_dsi_multi_context dsi_ctx = { .dsi = jadard_data->dsi };
> +
> +	// Init configuration sequence
> +	jd9161z_switch_page(&dsi_ctx, 0x00);
> +	jd9161z_enable_standard_cmds(&dsi_ctx);
> +
> +	// GAMMA_SET (pos/neg voltage of gamma power)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb7,
> +		0x10, 0x04, 0x86, 0x00, 0x1b, 0x35);
> +
> +	// DCDC_SEL (power mode and charge pump settings)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbb,
> +		0x69, 0x0b, 0x30, 0xb2, 0xb2, 0xc0, 0xe0, 0x20,
> +		0xf0, 0x50, 0x60);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	// VDDD_CTRL (control logic voltage setting)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbc,
> +		0x73, 0x14);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	// SETRGBCYC (display waveform cycle of RGB mode)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3,
> +		0x74, 0x04, 0x08, 0x0e, 0x00, 0x0e, 0x0c, 0x08,
> +		0x0e, 0x00, 0x0e, 0x82, 0x0a, 0x82);
> +
> +	// SET_TCON (timing control setting)
> +	// param[0][5:4] + param[1]: number of panel lines / 2
> +	//   400 = 01 1001 0000 -> 0x10, 0x90
> +	// param[2]: scan line time width
> +	// param[3]: vfp: 14
> +	// param[4]: vs + vbp - 1: 11
> +	// param[5]: hbp: 4
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4,
> +		0x10, 0x90, 0x92, 0x0e, 0x0b, 0x04);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	// SET_R_GAMMA (set red gamma output voltage)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8,
> +		0x7e, 0x76, 0x68, 0x57, 0x4c, 0x39, 0x3a, 0x23,
> +		0x3d, 0x3d, 0x40, 0x61, 0x54, 0x64, 0x5d, 0x62,
> +		0x5a, 0x50, 0x32, 0x7e, 0x76, 0x68, 0x57, 0x4c,
> +		0x39, 0x3a, 0x23, 0x3d, 0x3d, 0x40, 0x61, 0x54,
> +		0x64, 0x5d, 0x62, 0x5a, 0x50, 0x32);
> +
> +	// SET_GIP_L (CGOUTx_L signal mapping, gs_panel = 0)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd0,
> +		0x1f, 0x0a, 0x08, 0x06, 0x04, 0x1f, 0x00, 0x1f,
> +		0x17, 0x1f, 0x18, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
> +
> +	// SET_GIP_R (CGOUTx_R signal mapping, gs_panel = 0)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd1,
> +		0x1f, 0x0b, 0x09, 0x07, 0x05, 0x1f, 0x01, 0x1f,
> +		0x17, 0x1f, 0x18, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
> +
> +	// SETGIP1 (GIP signal timing 1)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4,
> +		0x10, 0x00, 0x00, 0x03, 0x60, 0x05, 0x10, 0x00,
> +		0x02, 0x06, 0x68, 0x00, 0x6c, 0x00, 0x00, 0x00,
> +		0x00, 0x06, 0x78, 0x71, 0x07, 0x06, 0x68, 0x0c,
> +		0x25, 0x00, 0x63, 0x03, 0x00);
> +
> +	// SETGIP2 (GIP signal timing 1)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd5,
> +		0x20, 0x10, 0x8c, 0x18, 0x00, 0x80, 0x00, 0x08,
> +		0x00, 0x00, 0x06, 0x60, 0x00, 0x81, 0x70, 0x02,
> +		0x30, 0x01, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00,
> +		0x03, 0x60, 0x83, 0x90, 0x00, 0x00, 0x03, 0x4f,
> +		0x03, 0x00, 0x1f, 0x3f, 0x00, 0x00, 0x00, 0x00);
> +
> +	jd9161z_switch_page(&dsi_ctx, 0x04);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	// Unknown command
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0,
> +		0x24, 0x01);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	jd9161z_switch_page(&dsi_ctx, 0x02);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	// SETRGBCYC2 (RGB IF source switch control timing)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1,
> +		0x71);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	// Unknown command
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2,
> +		0x00, 0x18, 0x08, 0x1e, 0x25, 0x7c, 0xc7);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	jd9161z_switch_page(&dsi_ctx, 0x00);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 1);
> +
> +	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 120);
> +
> +	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 5);
> +
> +	return dsi_ctx.accum_err;
> +};
> +
> +static const struct jadard_panel_desc zhunyi_z40046_ctc_desc = {
> +	.mode = {
> +		.clock		= (480 + 20 + 20 + 20) * (800 + 14 + 4 + 8) * 60 / 1000,
> +
> +		.hdisplay	= 480,
> +		.hsync_start	= 480 + 20,
> +		.hsync_end	= 480 + 20 + 20,
> +		.htotal		= 480 + 20 + 20 + 20,
> +
> +		.vdisplay	= 800,
> +		.vsync_start	= 800 + 14,
> +		.vsync_end	= 800 + 14 + 4,
> +		.vtotal		= 800 + 14 + 4 + 8,
> +
> +		.width_mm	= 52,
> +		.height_mm	= 86,
> +		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> +		.type		= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
> +	},
> +	.lanes = 2,
> +	.format = MIPI_DSI_FMT_RGB888,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
> +		MIPI_DSI_MODE_LPM,
> +	.lp11_before_reset = true,
> +	.reset_before_power_off_vcioo = true,
> +	.vcioo_to_lp11_delay_ms = 5,
> +	.lp11_to_reset_delay_ms = 10,
> +	.backlight_off_to_display_off_delay_ms = 100,
> +	.display_off_to_enter_sleep_delay_ms = 50,
> +	.enter_sleep_to_reset_down_delay_ms = 100,
> +	.init = zhunyi_z40046_init_cmds_ctc,
> +};
> +
> +// Sequence retrieved from Xiaomi Mi Smart Clock x04g kernel in boot.bin
> +static int zhunyi_z40046_init_cmds_boe(struct jadard *jadard_data)
> +{
> +	struct mipi_dsi_multi_context dsi_ctx = { .dsi = jadard_data->dsi };
> +
> +	// Init configuration sequence
> +	jd9161z_switch_page(&dsi_ctx, 0x00);
> +	jd9161z_enable_standard_cmds(&dsi_ctx);
> +
> +	// GAMMA_SET (pos/neg voltage of gamma power)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb7,
> +		0x10, 0x08, 0x42, 0x00, 0x56, 0x42);
> +
> +	// DCDC_SEL (power mode and charge pump settings)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbb,
> +		0x52, 0x0f, 0xb2, 0xb2, 0xb2, 0xc0, 0xd0, 0x50,
> +		0xf0, 0x40, 0x50);
> +
> +	// VDDD_CTRL (control logic voltage setting)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbc,
> +		0x73, 0x14);
> +
> +	// SETRGBCYC (display waveform cycle of RGB mode)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc3,
> +		0x04, 0x07, 0x0b, 0x17, 0x00, 0x17, 0x04, 0x17,
> +		0x17, 0x00, 0x17, 0x82, 0x0b, 0x82);
> +
> +	// SET_TCON (timing control setting)
> +	// param[0][5:4] + param[1]: number of panel lines / 2
> +	//   400 = 01 1001 0000 -> 0x10, 0x90
> +	// param[2]: scan line time width
> +	// param[3]: vfp: 14
> +	// param[4]: vs + vbp - 1: 11
> +	// param[5]: hbp: 6
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc4,
> +		0x10, 0x90, 0x92, 0x0e, 0x06);
> +
> +	// SET_R_GAMMA (set red gamma output voltage)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc8,
> +		0x7f, 0x78, 0x69, 0x56, 0x47, 0x33, 0x34, 0x1e,
> +		0x3b, 0x3e, 0x43, 0x67, 0x5d, 0x6f, 0x68, 0x70,
> +		0x6a, 0x61, 0x3c, 0x7f, 0x78, 0x69, 0x56, 0x47,
> +		0x33, 0x34, 0x1e, 0x3b, 0x3e, 0x43, 0x67, 0x5d,
> +		0x6f, 0x68, 0x70, 0x6a, 0x61, 0x3c);
> +
> +	// SET_GIP_L (CGOUTx_L signal mapping, gs_panel = 0)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd0,
> +		0x1f, 0x1e, 0x07, 0x05, 0x01, 0x1f, 0x1f, 0x1f,
> +		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
> +
> +	// SET_GIP_R (CGOUTx_R signal mapping, gs_panel = 0)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd1,
> +		0x1f, 0x1e, 0x06, 0x04, 0x00, 0x1f, 0x1f, 0x1f,
> +		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
> +
> +	// SET_GIP_L_GS (CGOUTx_L signal mapping, gs_panel = 1)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd2,
> +		0x1f, 0x1f, 0x04, 0x06, 0x00, 0x1e, 0x1f, 0x1f,
> +		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
> +
> +	// SET_GIP_R_GS (CGOUTx_R signal mapping, gs_panel = 1)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd3,
> +		0x1f, 0x1f, 0x05, 0x07, 0x01, 0x1e, 0x1f, 0x1f,
> +		0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f);
> +
> +	// SETGIP1 (GIP signal timing 1)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd4,
> +		0x30, 0x00, 0x00, 0x00, 0x00, 0x01, 0x10, 0x00,
> +		0x03, 0x03, 0x68, 0x03, 0x40, 0x05, 0x00, 0x00,
> +		0x00, 0xcc, 0x2d, 0x31, 0x02, 0x03, 0x68, 0x0c,
> +		0x25, 0x00, 0x63, 0x03, 0x00);
> +
> +	// SETGIP2 (GIP signal timing 1)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xd5,
> +		0x30, 0x08, 0x80, 0x18, 0x00, 0x00, 0x00, 0x18,
> +		0x00, 0x00, 0x06, 0x60, 0x00, 0x07, 0x50, 0x00,
> +		0x33, 0xc0, 0x00, 0x60, 0xc0, 0x00, 0x00, 0x00,
> +		0x03, 0x60, 0x06, 0x10, 0x00, 0x00, 0x0f, 0x4f,
> +		0x00, 0x10, 0x1f, 0x3f);
> +
> +	jd9161z_switch_page(&dsi_ctx, 0x02);
> +
> +	// SETRGBCYC2 (RGB IF source switch control timing)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc1,
> +		0x60);
> +
> +	// Unknown command
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2,
> +		0x00, 0x18, 0x08, 0x1e, 0x25, 0x7c, 0xc7);
> +
> +	jd9161z_switch_page(&dsi_ctx, 0x00);
> +
> +	// GAS_CTRL (GAS function control)
> +	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe,
> +		0x4e);
> +
> +	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 120);
> +
> +	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
> +
> +	mipi_dsi_msleep(&dsi_ctx, 10);
> +
> +	return dsi_ctx.accum_err;
> +};
> +
> +static const struct jadard_panel_desc zhunyi_z40046_boe_desc = {
> +	.mode = {
> +		.clock		= (480 + 20 + 20 + 20) * (800 + 14 + 4 + 8) * 60 / 1000,
> +
> +		.hdisplay	= 480,
> +		.hsync_start	= 480 + 20,
> +		.hsync_end	= 480 + 20 + 20,
> +		.htotal		= 480 + 20 + 20 + 20,
> +
> +		.vdisplay	= 800,
> +		.vsync_start	= 800 + 14,
> +		.vsync_end	= 800 + 14 + 4,
> +		.vtotal		= 800 + 14 + 4 + 8,
> +
> +		.width_mm	= 52,
> +		.height_mm	= 86,
> +		.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> +		.type		= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
> +	},
> +	.lanes = 2,
> +	.format = MIPI_DSI_FMT_RGB888,
> +	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
> +		MIPI_DSI_MODE_LPM,
> +	.lp11_before_reset = true,
> +	.reset_before_power_off_vcioo = true,
> +	.vcioo_to_lp11_delay_ms = 5,
> +	.lp11_to_reset_delay_ms = 10,
> +	.backlight_off_to_display_off_delay_ms = 100,
> +	.display_off_to_enter_sleep_delay_ms = 50,
> +	.enter_sleep_to_reset_down_delay_ms = 100,
> +	.init = zhunyi_z40046_init_cmds_boe,
> +};
> +
>  static int jadard_dsi_probe(struct mipi_dsi_device *dsi)
>  {
>  	struct device *dev = &dsi->dev;
> @@ -1707,6 +2012,14 @@ static const struct of_device_id jadard_of_match[] = {
>  		.compatible = "taiguanck,xti05101-01a",
>  		.data = &taiguan_xti05101_01a_desc
>  	},
> +	{
> +		.compatible = "zhunyikeji,z40046-ctc",
> +		.data = &zhunyi_z40046_ctc_desc
> +	},
> +	{
> +		.compatible = "zhunyikeji,z40046-boe",
> +		.data = &zhunyi_z40046_boe_desc
> +	},
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, jadard_of_match);
> -- 
> 2.43.0
> 

-- 
With best wishes
Dmitry