ARM: dts: Augment VGA connector bridge on PB11MPcore

The PL111 in the ARM reference platforms are connected to
"panels" that are actually dumb VGA DAC connector bridges.
Now that we can support the proper bridges in the DRM driver,
fix this up.

Cc: Mali DP Maintainers <malidp@foss.arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 53 insertions, 25 deletions

diff --git a/arch/arm/boot/dts/arm-realview-pb11mp.dts b/arch/arm/boot/dts/arm-realview-pb11mp.dts
index 3944765ac4b0..36203288de42 100644
--- a/arch/arm/boot/dts/arm-realview-pb11mp.dts
+++ b/arch/arm/boot/dts/arm-realview-pb11mp.dts
@@ -242,6 +242,49 @@
 		bank-width = <4>;
 	};
 
+	bridge {
+		compatible = "ti,ths8134a", "ti,ths8134";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				vga_bridge_in: endpoint {
+					remote-endpoint = <&clcd_pads>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				vga_bridge_out: endpoint {
+					remote-endpoint = <&vga_con_in>;
+				};
+			};
+		};
+	};
+
+	vga {
+		/*
+		 * This DDC I2C is connected directly to the DVI portions
+		 * of the connector, so it's not really working when the
+		 * monitor is connected to the VGA connector.
+		 */
+		compatible = "vga-connector";
+		ddc-i2c-bus = <&i2c1>;
+
+		port {
+			vga_con_in: endpoint {
+				remote-endpoint = <&vga_bridge_out>;
+			};
+		};
+	};
+
 	soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -575,6 +618,13 @@
 			clock-names = "apb_pclk";
 		};
 
+		i2c1: i2c@10016000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "arm,versatile-i2c";
+			reg = <0x10016000 0x1000>;
+		};
+
 		rtc: rtc@10017000 {
 			compatible = "arm,pl031", "arm,primecell";
 			reg = <0x10017000 0x1000>;
@@ -609,37 +659,15 @@
 			interrupts = <0 23 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&oscclk4>, <&pclk>;
 			clock-names = "clcdclk", "apb_pclk";
-			max-memory-bandwidth = <130000000>; /* 16bpp @ 63.5MHz */
+			/* 1024x768 16bpp @65MHz works fine */
+			max-memory-bandwidth = <95000000>;
 
 			port {
 				clcd_pads: endpoint {
-					remote-endpoint = <&clcd_panel>;
+					remote-endpoint = <&vga_bridge_in>;
 					arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
 				};
 			};
-
-			panel {
-				compatible = "panel-dpi";
-
-				port {
-					clcd_panel: endpoint {
-						remote-endpoint = <&clcd_pads>;
-					};
-				};
-
-				/* Standard 640x480 VGA timings */
-				panel-timing {
-					clock-frequency = <25175000>;
-					hactive = <640>;
-					hback-porch = <48>;
-					hfront-porch = <16>;
-					hsync-len = <96>;
-					vactive = <480>;
-					vback-porch = <33>;
-					vfront-porch = <10>;
-					vsync-len = <2>;
-				};
-			};
 		};
 
 		/*