Add Winstar wf40eswaa6mnn0 panel support

PATCH Applied Stefan Eichenberger 3 participants 6 messages Jun 6, 2025 – Jun 10, 2025

Subsystems (5)

Device tree bindings DRM drivers DRM misc DRM panel drivers +1 more subsystems

lore

Share & tools

lore

Stefan Eichenberger

author

2025-06-06 11:46 UTC #0 lore raw

cover Add Winstar wf40eswaa6mnn0 panel support

This patch series adds support for the Winstar wf40eswaa6mnn0 panel. The datasheet including the init sequence was taken from here:
https://www.winstar.com.tw/d/308/WF40ESWAA6MNN0.pdf

Stefan Eichenberger (2):
drm/panel: st7701: Add Winstar wf40eswaa6mnn0 panel support
dt-bindings: display: st7701: Add Winstar wf40eswaa6mnn0 panel

 .../display/panel/sitronix,st7701.yaml        |   1 +
 drivers/gpu/drm/panel/panel-sitronix-st7701.c | 124 ++++++++++++++++++
 2 files changed, 125 insertions(+)

Signature · 1 line

2.48.1

Stefan Eichenberger

author

2025-06-06 11:46 UTC #1 lore raw

PATCH 1/2 drm/panel: st7701: Add Winstar wf40eswaa6mnn0 panel support

The Winstar wf40eswaa6mnn0 panel is a square 4.0" TFT LCD with a resolution of 480x480 pixels.

This panel is driven by the Sitronix ST7701 controller and uses a MIPI DSI interface. The settings are based on the panel's datasheet and the init sequence provided by Winstar.

It was tested on a Verdin iMX8MP from Toradex with a Carrier Board providing a MIPI DSI interface.

Signed-off-by Stefan Eichenberger <[email protected]>

---
 drivers/gpu/drm/panel/panel-sitronix-st7701.c | 124 ++++++++++++++++++
 1 file changed, 124 insertions(+)

drivers/gpu/drm/panel/panel-sitronix-st7701.c +124 -0

index 1f72ef7ca74c9..cf42281393dd9 100644
@@ -520,6 +520,28 @@ static void rg28xx_gip_sequence(struct st7701 *st7701)
 	st7701_switch_cmd_bkx(st7701, false, 0);
 }
 
+static void wf40eswaa6mnn0_gip_sequence(struct st7701 *st7701)
+{
+	ST7701_WRITE(st7701, 0xE0, 0x00, 0x28, 0x02);
+	ST7701_WRITE(st7701, 0xE1, 0x08, 0xA0, 0x00, 0x00, 0x07, 0xA0, 0x00,
+		   0x00, 0x00, 0x44, 0x44);
+	ST7701_WRITE(st7701, 0xE2, 0x11, 0x11, 0x44, 0x44, 0xED, 0xA0, 0x00,
+		   0x00, 0xEC, 0xA0, 0x00, 0x00);
+	ST7701_WRITE(st7701, 0xE3, 0x00, 0x00, 0x11, 0x11);
+	ST7701_WRITE(st7701, 0xE4, 0x44, 0x44);
+	ST7701_WRITE(st7701, 0xE5, 0x0A, 0xE9, 0xD8, 0xA0, 0x0C, 0xEB, 0xD8,
+		   0xA0, 0x0E, 0xED, 0xD8, 0xA0, 0x10, 0xEF, 0xD8, 0xA0);
+	ST7701_WRITE(st7701, 0xE6, 0x00, 0x00, 0x11, 0x11);
+	ST7701_WRITE(st7701, 0xE7, 0x44, 0x44);
+	ST7701_WRITE(st7701, 0xE8, 0x09, 0xE8, 0xD8, 0xA0, 0x0B, 0xEA, 0xD8,
+		   0xA0, 0x0D, 0xEC, 0xD8, 0xA0, 0x0F, 0xEE, 0xD8, 0xA0);
+	ST7701_WRITE(st7701, 0xEB, 0x00, 0x00, 0xE4, 0xE4, 0x88, 0x00, 0x40);
+	ST7701_WRITE(st7701, 0xEC, 0x3C, 0x00);
+	ST7701_WRITE(st7701, 0xED, 0xAB, 0x89, 0x76, 0x54, 0x02, 0xFF, 0xFF,
+		   0xFF, 0xFF, 0xFF, 0xFF, 0x20, 0x45, 0x67, 0x98, 0xBA);
+	ST7701_WRITE(st7701, MIPI_DCS_SET_ADDRESS_MODE, 0);
+}
+
 static int st7701_prepare(struct drm_panel *panel)
 {
 	struct st7701 *st7701 = panel_to_st7701(panel);

@@ -1135,6 +1157,107 @@ static const struct st7701_panel_desc rg28xx_desc = {
 	.gip_sequence = rg28xx_gip_sequence,
 };
 
+static const struct drm_display_mode wf40eswaa6mnn0_mode = {
+	.clock		= 18306,
+
+	.hdisplay	= 480,
+	.hsync_start	= 480 + 2,
+	.hsync_end	= 480 + 2 + 45,
+	.htotal		= 480 + 2 + 45  + 13,
+
+	.vdisplay	= 480,
+	.vsync_start	= 480 + 2,
+	.vsync_end	= 480 + 2 + 70,
+	.vtotal		= 480 + 2 + 70 + 13,
+
+	.width_mm	= 72,
+	.height_mm	= 70,
+
+	.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+
+	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct st7701_panel_desc wf40eswaa6mnn0_desc = {
+	.mode = &wf40eswaa6mnn0_mode,
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+	.panel_sleep_delay = 0,
+
+	.pv_gamma = {
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC0_MASK, 0x1),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC4_MASK, 0x08),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC8_MASK, 0x10),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC16_MASK, 0x0c),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC24_MASK, 0x10),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC52_MASK, 0x08),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC80_MASK, 0x10),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC108_MASK, 0x0c),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC147_MASK, 0x08),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC175_MASK, 0x22),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC203_MASK, 0x04),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC231_MASK, 0x14),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC239_MASK, 0x12),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC247_MASK, 0xb3),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC251_MASK, 0x3a),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC255_MASK, 0x1f)
+	},
+	.nv_gamma = {
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC4_MASK, 0x13),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC4_MASK, 0x19),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC8_MASK, 0x1f),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC16_MASK, 0x0f),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC24_MASK, 0x14),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC52_MASK, 0x07),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC80_MASK, 0x07),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC108_MASK, 0x08),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC147_MASK, 0x07),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC175_MASK, 0x22),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC203_MASK, 0x02),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC231_MASK, 0xf),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC239_MASK, 0x0f),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC247_MASK, 0xa3),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC251_MASK, 0x29),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC255_MASK, 0x0d)
+	},
+	.nlinv = 3,
+	.vop_uv = 4737500,
+	.vcom_uv = 662500,
+	.vgh_mv = 15000,
+	.vgl_mv = -10170,
+	.avdd_mv = 6600,
+	.avcl_mv = -4600,
+	.gamma_op_bias = OP_BIAS_MIDDLE,
+	.input_op_bias = OP_BIAS_MIDDLE,
+	.output_op_bias = OP_BIAS_MIN,
+	.t2d_ns = 1600,
+	.t3d_ns = 10400,
+	.eot_en = true,
+	.gip_sequence = wf40eswaa6mnn0_gip_sequence,
+};
+
 static void st7701_cleanup(void *data)
 {
 	struct st7701 *st7701 = (struct st7701 *)data;

@@ -1265,6 +1388,7 @@ static const struct of_device_id st7701_dsi_of_match[] = {
 	{ .compatible = "densitron,dmt028vghmcmi-1a", .data = &dmt028vghmcmi_1a_desc },
 	{ .compatible = "elida,kd50t048a", .data = &kd50t048a_desc },
 	{ .compatible = "techstar,ts8550b", .data = &ts8550b_desc },
+	{ .compatible = "winstar,wf40eswaa6mnn0", .data = &wf40eswaa6mnn0_desc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, st7701_dsi_of_match);

Signature · 1 line

2.48.1

[email protected]

maintainer Reviewed-by on v1 1/2

2025-06-10 07:23 UTC #2 lore raw

Re: [PATCH v1 1/2] drm/panel: st7701: Add Winstar wf40eswaa6mnn0 panel support

Quoted 157 lines · Stefan Eichenberger

The Winstar wf40eswaa6mnn0 panel is a square 4.0" TFT LCD with a resolution of 480x480 pixels.

This panel is driven by the Sitronix ST7701 controller and uses a MIPI DSI interface. The settings are based on the panel's datasheet and the init sequence provided by Winstar.

It was tested on a Verdin iMX8MP from Toradex with a Carrier Board providing a MIPI DSI interface.

Signed-off-by Stefan Eichenberger <[email protected]>

---
  drivers/gpu/drm/panel/panel-sitronix-st7701.c | 124 ++++++++++++++++++
  1 file changed, 124 insertions(+)

drivers/gpu/drm/panel/panel-sitronix-st7701.c +123 -0

index 1f72ef7ca74c9..cf42281393dd9 100644
@@ -520,6 +520,28 @@ static void rg28xx_gip_sequence(struct st7701 *st7701)
  	st7701_switch_cmd_bkx(st7701, false, 0);
  }
 
+static void wf40eswaa6mnn0_gip_sequence(struct st7701 *st7701)
+{
+	ST7701_WRITE(st7701, 0xE0, 0x00, 0x28, 0x02);
+	ST7701_WRITE(st7701, 0xE1, 0x08, 0xA0, 0x00, 0x00, 0x07, 0xA0, 0x00,
+		   0x00, 0x00, 0x44, 0x44);
+	ST7701_WRITE(st7701, 0xE2, 0x11, 0x11, 0x44, 0x44, 0xED, 0xA0, 0x00,
+		   0x00, 0xEC, 0xA0, 0x00, 0x00);
+	ST7701_WRITE(st7701, 0xE3, 0x00, 0x00, 0x11, 0x11);
+	ST7701_WRITE(st7701, 0xE4, 0x44, 0x44);
+	ST7701_WRITE(st7701, 0xE5, 0x0A, 0xE9, 0xD8, 0xA0, 0x0C, 0xEB, 0xD8,
+		   0xA0, 0x0E, 0xED, 0xD8, 0xA0, 0x10, 0xEF, 0xD8, 0xA0);
+	ST7701_WRITE(st7701, 0xE6, 0x00, 0x00, 0x11, 0x11);
+	ST7701_WRITE(st7701, 0xE7, 0x44, 0x44);
+	ST7701_WRITE(st7701, 0xE8, 0x09, 0xE8, 0xD8, 0xA0, 0x0B, 0xEA, 0xD8,
+		   0xA0, 0x0D, 0xEC, 0xD8, 0xA0, 0x0F, 0xEE, 0xD8, 0xA0);
+	ST7701_WRITE(st7701, 0xEB, 0x00, 0x00, 0xE4, 0xE4, 0x88, 0x00, 0x40);
+	ST7701_WRITE(st7701, 0xEC, 0x3C, 0x00);
+	ST7701_WRITE(st7701, 0xED, 0xAB, 0x89, 0x76, 0x54, 0x02, 0xFF, 0xFF,
+		   0xFF, 0xFF, 0xFF, 0xFF, 0x20, 0x45, 0x67, 0x98, 0xBA);
+	ST7701_WRITE(st7701, MIPI_DCS_SET_ADDRESS_MODE, 0);
+}
+
  static int st7701_prepare(struct drm_panel *panel)
  {
  	struct st7701 *st7701 = panel_to_st7701(panel);

@@ -1135,6 +1157,107 @@ static const struct st7701_panel_desc rg28xx_desc = {
  	.gip_sequence = rg28xx_gip_sequence,
  };
 
+static const struct drm_display_mode wf40eswaa6mnn0_mode = {
+	.clock		= 18306,
+
+	.hdisplay	= 480,
+	.hsync_start	= 480 + 2,
+	.hsync_end	= 480 + 2 + 45,
+	.htotal		= 480 + 2 + 45  + 13,
+
+	.vdisplay	= 480,
+	.vsync_start	= 480 + 2,
+	.vsync_end	= 480 + 2 + 70,
+	.vtotal		= 480 + 2 + 70 + 13,
+
+	.width_mm	= 72,
+	.height_mm	= 70,
+
+	.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+
+	.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct st7701_panel_desc wf40eswaa6mnn0_desc = {
+	.mode = &wf40eswaa6mnn0_mode,
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+	.panel_sleep_delay = 0,
+
+	.pv_gamma = {
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC0_MASK, 0x1),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC4_MASK, 0x08),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC8_MASK, 0x10),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC16_MASK, 0x0c),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC24_MASK, 0x10),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC52_MASK, 0x08),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC80_MASK, 0x10),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC108_MASK, 0x0c),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC147_MASK, 0x08),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC175_MASK, 0x22),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC203_MASK, 0x04),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC231_MASK, 0x14),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC239_MASK, 0x12),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC247_MASK, 0xb3),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC251_MASK, 0x3a),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC255_MASK, 0x1f)
+	},
+	.nv_gamma = {
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC4_MASK, 0x13),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC4_MASK, 0x19),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC8_MASK, 0x1f),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC16_MASK, 0x0f),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC24_MASK, 0x14),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC52_MASK, 0x07),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC80_MASK, 0x07),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC108_MASK, 0x08),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC147_MASK, 0x07),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC175_MASK, 0x22),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC203_MASK, 0x02),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC231_MASK, 0xf),
+
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC239_MASK, 0x0f),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC247_MASK, 0xa3),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC251_MASK, 0x29),
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_AJ_MASK, 0) |
+		CFIELD_PREP(ST7701_CMD2_BK0_GAMCTRL_VC255_MASK, 0x0d)
+	},
+	.nlinv = 3,
+	.vop_uv = 4737500,
+	.vcom_uv = 662500,
+	.vgh_mv = 15000,
+	.vgl_mv = -10170,
+	.avdd_mv = 6600,
+	.avcl_mv = -4600,
+	.gamma_op_bias = OP_BIAS_MIDDLE,
+	.input_op_bias = OP_BIAS_MIDDLE,
+	.output_op_bias = OP_BIAS_MIN,
+	.t2d_ns = 1600,
+	.t3d_ns = 10400,
+	.eot_en = true,
+	.gip_sequence = wf40eswaa6mnn0_gip_sequence,
+};
+
  static void st7701_cleanup(void *data)
  {
  	struct st7701 *st7701 = (struct st7701 *)data;

drivers/gpu/drm/panel/panel-sitronix-st7701.c static const struct of_device_id st7701_dsi_of_match[] = { · line 1394

Quoted 7 lines

drivers/gpu/drm/panel/panel-sitronix-st7701.c +1 -0

@@ -1265,6 +1388,7 @@ static const struct of_device_id st7701_dsi_of_match[] = {
  	{ .compatible = "densitron,dmt028vghmcmi-1a", .data = &dmt028vghmcmi_1a_desc },
  	{ .compatible = "elida,kd50t048a", .data = &kd50t048a_desc },
  	{ .compatible = "techstar,ts8550b", .data = &ts8550b_desc },
+	{ .compatible = "winstar,wf40eswaa6mnn0", .data = &wf40eswaa6mnn0_desc },
  	{ }
  };
  MODULE_DEVICE_TABLE(of, st7701_dsi_of_match);

Reviewed-by Neil Armstrong <[email protected]>

Stefan Eichenberger

author

2025-06-06 11:46 UTC #3 lore raw

PATCH 2/2 dt-bindings: display: st7701: Add Winstar wf40eswaa6mnn0 panel

In reply to Stefan Eichenberger

The Winstar wf40eswaa6mnn0 panel is a square 4.0" TFT LCD with a resolution of 480x480 pixels.

Signed-off-by Stefan Eichenberger <[email protected]>

---
 .../devicetree/bindings/display/panel/sitronix,st7701.yaml       | 1 +
 1 file changed, 1 insertion(+)

Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml +1 -0

index b07f3eca669bf..1e434240ea3f6 100644
@@ -29,6 +29,7 @@ properties:
           - densitron,dmt028vghmcmi-1a
           - elida,kd50t048a
           - techstar,ts8550b
+          - winstar,wf40eswaa6mnn0
       - const: sitronix,st7701
 
   reg:

Signature · 1 line

2.48.1

Conor Dooley

Acked-by on v1 2/2

2025-06-06 15:43 UTC #4 lore raw

Re: [PATCH v1 2/2] dt-bindings: display: st7701: Add Winstar wf40eswaa6mnn0 panel

Quoted 4 lines · Stefan Eichenberger

The Winstar wf40eswaa6mnn0 panel is a square 4.0" TFT LCD with a resolution of 480x480 pixels.
Signed-off-by Stefan Eichenberger <[email protected]>

Acked-by Conor Dooley <[email protected]>

Neil Armstrong

maintainer Applied

2025-06-10 12:13 UTC #5 lore raw

In reply to Stefan Eichenberger

Hi,

Quoted 9 lines · Stefan Eichenberger

This patch series adds support for the Winstar wf40eswaa6mnn0 panel. The datasheet including the init sequence was taken from here:
https://www.winstar.com.tw/d/308/WF40ESWAA6MNN0.pdf
Stefan Eichenberger (2):
drm/panel: st7701: Add Winstar wf40eswaa6mnn0 panel support
dt-bindings: display: st7701: Add Winstar wf40eswaa6mnn0 panel
[...]

Thanks, Applied to https://gitlab.freedesktop.org/drm/misc/kernel.git (drm-misc-next)

[1/2] drm/panel: st7701: Add Winstar wf40eswaa6mnn0 panel support

      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/d04f6367d39918461d0335d30b860d38668d4b54
[2/2] dt-bindings: display: st7701: Add Winstar wf40eswaa6mnn0 panel
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/f79692d0c386bf8b815c92fc0f832d1a0af03628

Signature · 1 line

Neil