ARM i.MX51: Add pwm support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx51.dtsi

@@ -409,6 +409,24 @@
 				};
 			};
 
+			pwm1: pwm@73fb4000 {
+				#pwm-cells = <2>;
+				compatible = "fsl,imx51-pwm", "fsl,imx27-pwm";
+				reg = <0x73fb4000 0x4000>;
+				clocks = <&clks 37>, <&clks 38>;
+				clock-names = "ipg", "per";
+				interrupts = <61>;
+			};
+
+			pwm2: pwm@73fb8000 {
+				#pwm-cells = <2>;
+				compatible = "fsl,imx51-pwm", "fsl,imx27-pwm";
+				reg = <0x73fb8000 0x4000>;
+				clocks = <&clks 39>, <&clks 40>;
+				clock-names = "ipg", "per";
+				interrupts = <94>;
+			};
+
 			uart1: serial@73fbc000 {
 				compatible = "fsl,imx51-uart", "fsl,imx21-uart";
 				reg = <0x73fbc000 0x4000>;