imx-drm: add imx6 DT configuration for HDMI

Extracted from another patch by Fabio Estevam, this adds the DT
configuration for HDMI output on the IMX6 SoCs
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/boot/dts/imx6dl.dtsi

@@ -88,3 +88,7 @@
 		crtcs = <&ipu1 0>, <&ipu1 1>;
 	};
 };
+
+&hdmi {
+	crtcs = <&ipu1 0>, <&ipu1 1>;
+}

arch/arm/boot/dts/imx6q.dtsi

@@ -159,3 +159,7 @@
 		crtcs = <&ipu1 0>, <&ipu1 1>, <&ipu2 0>, <&ipu2 1>;
 	};
 };
+
+&hdmi {
+	crtcs = <&ipu1 0>, <&ipu1 1>, <&ipu2 0>, <&ipu2 1>;
+};

arch/arm/boot/dts/imx6qdl.dtsi

@@ -1368,6 +1368,16 @@
 				};
 			};
 
+			hdmi: hdmi@0120000 {
+				compatible = "fsl,imx6q-hdmi";
+				reg = <0x00120000 0x9000>;
+				interrupts = <0 115 0x04>;
+				gpr = <&gpr>;
+				clocks = <&clks 123>, <&clks 124>;
+				clock-names = "iahb", "isfr";
+				status = "disabled";
+			};
+
 			dcic1: dcic@020e4000 {
 				reg = <0x020e4000 0x4000>;
 				interrupts = <0 124 0x04>;