ARM: bcm2835: Add the DDC I2C controller to the device tree.

We need to use it for getting video modes over HDMI.
Signed-off-by: NEric Anholt <eric@anholt.net>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>

arch/arm/boot/dts/bcm2835-rpi.dtsi

@@ -52,6 +52,10 @@
 	clock-frequency = <100000>;
 };
 
+&i2c2 {
+	status = "okay";
+};
+
 &sdhci {
 	status = "okay";
 	bus-width = <4>;

arch/arm/boot/dts/bcm2835.dtsi

@@ -167,6 +167,16 @@
 			status = "disabled";
 		};
 
+		i2c2: i2c@7e805000 {
+			compatible = "brcm,bcm2835-i2c";
+			reg = <0x7e805000 0x1000>;
+			interrupts = <2 21>;
+			clocks = <&clocks BCM2835_CLOCK_VPU>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		usb@7e980000 {
 			compatible = "brcm,bcm2835-usb";
 			reg = <0x7e980000 0x10000>;