dtoverlays: tc358743: Update legacy compatible frag with cam0 override

The non-pi5 variant of tc358743 needs to update the compatible of
csi0 rather than csi1 if the cam0 override is used, otherwise it
gets loaded in Media Controller mode.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

arch/arm/boot/dts/overlays/README

@@ -5761,6 +5761,7 @@ Params: 3_4_inch_c              3.4" 800x800 2lane
         5_5_inch_a              5.5" 720x1280 2lane
         7_0_inch_a              7.0" A 720x1280 2lane
         7_0_inch_b              7.0" B 720x1280 2lane
+        7_0_inch_c              7.0" C 1024x600 2lane
         8_0_inch_a              8.0" 800x1280 2lane
         8_0_inch_a_4lane        8.0" 800x1280 4lane
         8_8_inch_a              8.8" 480x1920 2lane

arch/arm/boot/dts/overlays/tc358743-overlay.dts

@@ -8,7 +8,7 @@
 / {
 	compatible = "brcm,bcm2835";
 
-	fragment@100 {
+	legacy_frag: fragment@100 {
 		target = <&csi1>;
 		__overlay__ {
 			compatible = "brcm,bcm2835-unicam-legacy";
@@ -17,5 +17,12 @@
 
 	__overrides__ {
 		media-controller = <0>,"!100";
+		// Overwrites the cam0 override from tc358743.dtsi as we need to
+		// update legacy_frag.
+		cam0 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
+		       <&csi_frag>, "target:0=",<&csi0>,
+		       <&clk_frag>, "target:0=",<&cam0_clk>,
+		       <&tc358743>, "clocks:0=",<&cam0_clk>,
+		       <&legacy_frag>, "target:0=",<&csi0>;
 	};
 };

arch/arm/boot/dts/overlays/vc4-kms-dsi-waveshare-panel-v2-overlay.dts

@@ -84,6 +84,7 @@
 		5_5_inch_a = <&dsi_panel>, "compatible=waveshare,5.5-dsi-touch-a";
 		7_0_inch_a = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-a";
 		7_0_inch_b = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-b";
+		7_0_inch_c = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-c";
 		8_0_inch_a = <&dsi_panel>, "compatible=waveshare,8.0-dsi-touch-a";
 		8_0_inch_a_4lane = <&dsi_panel>, "compatible=waveshare,8.0-dsi-touch-a-4lane";
 		8_8_inch_a = <&dsi_panel>, "compatible=waveshare,8.8-dsi-touch-a";

drivers/gpu/drm/panel/panel-waveshare-dsi-v2.c

@@ -1374,6 +1374,25 @@ static const struct panel_init_cmd ws_panel_7_a_init[] = {
 	{},
 };
 
+static const struct panel_init_cmd ws_panel_7_c_init[] = {
+	_INIT_DCS_CMD(0x80, 0x8B),
+	_INIT_DCS_CMD(0x81, 0x78),
+	_INIT_DCS_CMD(0x82, 0x84),
+	_INIT_DCS_CMD(0x83, 0x88),
+	_INIT_DCS_CMD(0x84, 0xA8),
+	_INIT_DCS_CMD(0x85, 0xE3),
+	_INIT_DCS_CMD(0x86, 0x88),
+	_INIT_DCS_CMD(0x87, 0x5A),
+	_INIT_DCS_CMD(0xB0, 0x80),
+	_INIT_DCS_CMD(0xB1, 0x30),
+	_INIT_DCS_CMD(0xB2, 0x50),
+	_INIT_DCS_CMD(0x11),
+	_INIT_DELAY_CMD(120),
+	_INIT_DCS_CMD(0x29),
+	_INIT_DELAY_CMD(20),
+	{},
+};
+
 static const struct panel_init_cmd ws_panel_5_5_a_init[] = {
 	_INIT_DCS_CMD(0xB9, 0xFF, 0x83, 0x94),
 	_INIT_DCS_CMD(0xBA, 0x61, 0x03, 0x68, 0x6B, 0xB2, 0xC0),
@@ -1902,6 +1921,20 @@ static const struct drm_display_mode ws_panel_7_a_mode = {
 	.height_mm = 154,
 };
 
+static const struct drm_display_mode ws_panel_7_c_mode = {
+	.clock = 51700,
+	.hdisplay = 1024,
+	.hsync_start = 1024 + 160,
+	.hsync_end = 1024 + 160 + 10,
+	.htotal = 1024 + 160 + 10 + 160,
+	.vdisplay = 600,
+	.vsync_start = 600 + 12,
+	.vsync_end = 600 + 12 + 1,
+	.vtotal = 600 + 12 + 1 + 23,
+	.width_mm = 154,
+	.height_mm = 85,
+};
+
 static const struct drm_display_mode ws_panel_5_5_a_mode = {
 	.clock = 65000,
 	.hdisplay = 720,
@@ -2201,6 +2234,15 @@ static const struct ws_panel_desc ws_panel_7_inch_a_desc = {
 	.format = MIPI_DSI_FMT_RGB888,
 };
 
+static const struct ws_panel_desc ws_panel_7_inch_c_desc = {
+	.init = ws_panel_7_c_init,
+	.mode = &ws_panel_7_c_mode,
+	.mode_flags = MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_VIDEO |
+		      MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS,
+	.lanes = 2,
+	.format = MIPI_DSI_FMT_RGB888,
+};
+
 static const struct ws_panel_desc ws_panel_5_5_inch_a_desc = {
 	.init = ws_panel_5_5_a_init,
 	.mode = &ws_panel_5_5_a_mode,
@@ -2258,6 +2300,7 @@ static const struct of_device_id ws_panel_of_match[] = {
 	{ .compatible = "waveshare,8.0-dsi-touch-a", &ws_panel_8_inch_a_desc },
 	{ .compatible = "waveshare,7.0-dsi-touch-a", &ws_panel_7_inch_a_desc },
 	{ .compatible = "waveshare,7.0-dsi-touch-b", &ws_panel_7_inch_a_desc },
+	{ .compatible = "waveshare,7.0-dsi-touch-c", &ws_panel_7_inch_c_desc },
 	{ .compatible = "waveshare,5.5-dsi-touch-a",
 	  &ws_panel_5_5_inch_a_desc },
 	{ .compatible = "waveshare,5.0-dsi-touch-a", &ws_panel_5_inch_a_desc },