ARM: bcm2835: Add the DPI hardware to the device tree.

It's currently marked disabled, as it's not useful without a panel
associated with it and the GPIO pins routed to ALT2.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>

arch/arm/boot/dts/bcm283x.dtsi

@@ -441,6 +441,17 @@ pixelvalve@7e207000 {
 			interrupts = <2 14>; /* pwa1 */
 		};
 
+		dpi: dpi@7e208000 {
+			compatible = "brcm,bcm2835-dpi";
+			reg = <0x7e208000 0x8c>;
+			clocks = <&clocks BCM2835_CLOCK_VPU>,
+				 <&clocks BCM2835_CLOCK_DPI>;
+			clock-names = "core", "pixel";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		dsi0: dsi@7e209000 {
 			compatible = "brcm,bcm2835-dsi0";
 			reg = <0x7e209000 0x78>;