[PATCH V2 0/3] drm/panel: Add Anbernic RG353V-V2 Panel

[PATCH V2 0/3] drm/panel: Add Anbernic RG353V-V2 Panel

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

Add the NewVision NV3051D panel as found on the second revision of the
RG353V. The underlying LCD panel itself is unknown (ST7703 is the
controller IC).

Changes from V1:
 - Split redefinition of CMD_UNKNOWN_C6 into separate patch.

Chris Morgan (3):
  dt-bindings: panel: Add compatible for Anbernic RG353V-V2 panel
  drm/panel: st7703: Rename CMD_UNKNOWN_C6 to CMD_SETECO
  drm/panel: st7703: Add support for Anbernic RG353V-V2  panel

 .../display/panel/rocktech,jh057n00900.yaml   |   2 +
 drivers/gpu/drm/panel/panel-sitronix-st7703.c | 102 +++++++++++++++++-
 2 files changed, 101 insertions(+), 3 deletions(-)

-- 
2.34.1

[PATCH V2 1/3] dt-bindings: panel: Add compatible for Anbernic RG353V-V2 panel

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

The Anbernic RG353V-V2 panel is a 5 inch 640x480 MIPI-DSI LCD panel.
It's based on the ST7703 LCD controller just like rocktech,jh057n00900.
It's used in a 2nd revision of the Anbernic RG353V handheld gaming
device. Like the first revision of the RG353V the control chip is known
but the panel itself is unknown, so name it for the device.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Guido Günther <agx@sigxcpu.org>
---
 .../devicetree/bindings/display/panel/rocktech,jh057n00900.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml b/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml
index 09b5eb7542f8..150e81090af2 100644
--- a/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml
+++ b/Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.yaml
@@ -20,6 +20,8 @@ allOf:
 properties:
   compatible:
     enum:
+      # Anberic RG353V-V2 5.0" 640x480 TFT LCD panel
+      - anbernic,rg353v-panel-v2
       # Rocktech JH057N00900 5.5" 720x1440 TFT LCD panel
       - rocktech,jh057n00900
       # Xingbangda XBD599 5.99" 720x1440 TFT LCD panel
-- 
2.34.1

[PATCH V2 2/3] drm/panel: st7703: Rename CMD_UNKNOWN_C6 to CMD_SETECO

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

A later revision of the datasheet for the ST7703 refers to this command
as "SETECO".

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
---
 drivers/gpu/drm/panel/panel-sitronix-st7703.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index 86a472b01360..27049a1d9b3e 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -41,8 +41,8 @@
 #define ST7703_CMD_UNKNOWN_BF	 0xBF
 #define ST7703_CMD_SETSCR	 0xC0
 #define ST7703_CMD_SETPOWER	 0xC1
+#define ST7703_CMD_SETECO	 0xC6
 #define ST7703_CMD_SETPANEL	 0xCC
-#define ST7703_CMD_UNKNOWN_C6	 0xC6
 #define ST7703_CMD_SETGAMMA	 0xE0
 #define ST7703_CMD_SETEQ	 0xE3
 #define ST7703_CMD_SETGIP1	 0xE9
@@ -266,8 +266,7 @@ static int xbd599_init_sequence(struct st7703 *ctx)
 				 * ESD_DET_TIME_SEL = 0 frames
 				 */);
 
-	/* Undocumented command. */
-	dsi_dcs_write_seq(dsi, ST7703_CMD_UNKNOWN_C6, 0x01, 0x00, 0xFF, 0xFF, 0x00);
+	dsi_dcs_write_seq(dsi, ST7703_CMD_SETECO, 0x01, 0x00, 0xFF, 0xFF, 0x00);
 
 	dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER,
 			  0x74, /* VBTHS, VBTLS: VGH = 17V, VBL = -11V */
-- 
2.34.1

[PATCH V3 3/3] drm/panel: st7703: Add support for Anbernic RG353V-V2 panel

[Chris Morgan]

From: Chris Morgan <macromorgan@hotmail.com>

The Anbernic RG353V-V2 is a 5 inch panel used in a new revision of the
Anbernic RG353V handheld gaming device. Add support for it.

Unfortunately it appears this controller is not able to support 120hz
or 100hz mode like the first revision panel.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
---
 drivers/gpu/drm/panel/panel-sitronix-st7703.c | 97 +++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index 27049a1d9b3e..2ed0cdfa86de 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -28,6 +28,7 @@
 /* Manufacturer specific Commands send via DSI */
 #define ST7703_CMD_ALL_PIXEL_OFF 0x22
 #define ST7703_CMD_ALL_PIXEL_ON	 0x23
+#define ST7703_CMD_SETAPID	 0xB1
 #define ST7703_CMD_SETDISP	 0xB2
 #define ST7703_CMD_SETRGBIF	 0xB3
 #define ST7703_CMD_SETCYC	 0xB4
@@ -42,11 +43,14 @@
 #define ST7703_CMD_SETSCR	 0xC0
 #define ST7703_CMD_SETPOWER	 0xC1
 #define ST7703_CMD_SETECO	 0xC6
+#define ST7703_CMD_SETIO	 0xC7
+#define ST7703_CMD_SETCABC	 0xC8
 #define ST7703_CMD_SETPANEL	 0xCC
 #define ST7703_CMD_SETGAMMA	 0xE0
 #define ST7703_CMD_SETEQ	 0xE3
 #define ST7703_CMD_SETGIP1	 0xE9
 #define ST7703_CMD_SETGIP2	 0xEA
+#define ST7703_CMD_UNKNOWN_EF	 0xEF
 
 struct st7703 {
 	struct device *dev;
@@ -354,6 +358,98 @@ static const struct st7703_panel_desc xbd599_desc = {
 	.init_sequence = xbd599_init_sequence,
 };
 
+static int rg353v2_init_sequence(struct st7703 *ctx)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+	/*
+	 * Init sequence was supplied by the panel vendor.
+	 */
+
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEXTC, 0xf1, 0x12, 0x83);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETAPID, 0x00, 0x00, 0x00,
+			       0xda, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETDISP, 0x00, 0x13, 0x70);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETRGBIF, 0x10, 0x10, 0x28,
+			       0x28, 0x03, 0xff, 0x00, 0x00, 0x00, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETBGP, 0x0a, 0x0a);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVCOM, 0x92, 0x92);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER_EXT, 0x25, 0x22,
+			       0xf0, 0x63);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETMIPI, 0x33, 0x81, 0x05,
+			       0xf9, 0x0e, 0x0e, 0x20, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00, 0x44, 0x25, 0x00, 0x90, 0x0a,
+			       0x00, 0x00, 0x01, 0x4f, 0x01, 0x00, 0x00, 0x37);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETVDC, 0x47);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_UNKNOWN_BF, 0x02, 0x11, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETSCR, 0x73, 0x73, 0x50, 0x50,
+			       0x00, 0x00, 0x12, 0x50, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPOWER, 0x53, 0xc0, 0x32,
+			       0x32, 0x77, 0xe1, 0xdd, 0xdd, 0x77, 0x77, 0x33,
+			       0x33);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETECO, 0x82, 0x00, 0xbf, 0xff,
+			       0x00, 0xff);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETIO, 0xb8, 0x00, 0x0a, 0x00,
+			       0x00, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETCABC, 0x10, 0x40, 0x1e,
+			       0x02);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0b);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGAMMA, 0x00, 0x07, 0x0d,
+			       0x37, 0x35, 0x3f, 0x41, 0x44, 0x06, 0x0c, 0x0d,
+			       0x0f, 0x11, 0x10, 0x12, 0x14, 0x1a, 0x00, 0x07,
+			       0x0d, 0x37, 0x35, 0x3f, 0x41, 0x44, 0x06, 0x0c,
+			       0x0d, 0x0f, 0x11, 0x10, 0x12, 0x14, 0x1a);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETEQ, 0x07, 0x07, 0x0b, 0x0b,
+			       0x0b, 0x0b, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
+			       0xc0, 0x10);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP1, 0xc8, 0x10, 0x02, 0x00,
+			       0x00, 0xb0, 0xb1, 0x11, 0x31, 0x23, 0x28, 0x80,
+			       0xb0, 0xb1, 0x27, 0x08, 0x00, 0x04, 0x02, 0x00,
+			       0x00, 0x00, 0x00, 0x04, 0x02, 0x00, 0x00, 0x00,
+			       0x88, 0x88, 0xba, 0x60, 0x24, 0x08, 0x88, 0x88,
+			       0x88, 0x88, 0x88, 0x88, 0x88, 0xba, 0x71, 0x35,
+			       0x18, 0x88, 0x88, 0x88, 0x88, 0x88, 0x00, 0x00,
+			       0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_SETGIP2, 0x97, 0x0a, 0x82, 0x02,
+			       0x03, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x81, 0x88, 0xba, 0x17, 0x53, 0x88, 0x88, 0x88,
+			       0x88, 0x88, 0x88, 0x80, 0x88, 0xba, 0x06, 0x42,
+			       0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x23, 0x00,
+			       0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			       0x00);
+	mipi_dsi_dcs_write_seq(dsi, ST7703_CMD_UNKNOWN_EF, 0xff, 0xff, 0x01);
+
+	return 0;
+}
+
+static const struct drm_display_mode rg353v2_mode = {
+	.hdisplay	= 640,
+	.hsync_start	= 640 + 40,
+	.hsync_end	= 640 + 40 + 2,
+	.htotal		= 640 + 40 + 2 + 80,
+	.vdisplay	= 480,
+	.vsync_start	= 480 + 18,
+	.vsync_end	= 480 + 18 + 2,
+	.vtotal		= 480 + 18 + 2 + 28,
+	.clock		= 24150,
+	.flags		= DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+	.width_mm	= 70,
+	.height_mm	= 57,
+};
+
+static const struct st7703_panel_desc rg353v2_desc = {
+	.mode = &rg353v2_mode,
+	.lanes = 4,
+	.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+		      MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_LPM,
+	.format = MIPI_DSI_FMT_RGB888,
+	.init_sequence = rg353v2_init_sequence,
+};
+
 static int st7703_enable(struct drm_panel *panel)
 {
 	struct st7703 *ctx = panel_to_st7703(panel);
@@ -614,6 +710,7 @@ static void st7703_remove(struct mipi_dsi_device *dsi)
 }
 
 static const struct of_device_id st7703_of_match[] = {
+	{ .compatible = "anbernic,rg353v-panel-v2", .data = &rg353v2_desc },
 	{ .compatible = "rocktech,jh057n00900", .data = &jh057n00900_panel_desc },
 	{ .compatible = "xingbangda,xbd599", .data = &xbd599_desc },
 	{ /* sentinel */ }
-- 
2.34.1