ARM: dts: add pwm DT nodes to Exynos5250 and Exynos5420

Add the device-tree binding for the PWM controller to Exynos5250 and Exynos5420
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5250.dtsi

@@ -548,6 +548,15 @@ usbphy-sys {
 		};
 	};
 
+	pwm: pwm@12dd0000 {
+		compatible = "samsung,exynos4210-pwm";
+		reg = <0x12dd0000 0x100>;
+		samsung,pwm-outputs = <0>, <1>, <2>, <3>;
+		#pwm-cells = <3>;
+		clocks = <&clock 311>;
+		clock-names = "timers";
+	};
+
 	amba {
 		#address-cells = <1>;
 		#size-cells = <1>;

arch/arm/boot/dts/exynos5420.dtsi

@@ -394,6 +394,15 @@ serial@12C30000 {
 		clock-names = "uart", "clk_uart_baud0";
 	};
 
+	pwm: pwm@12dd0000 {
+		compatible = "samsung,exynos4210-pwm";
+		reg = <0x12dd0000 0x100>;
+		samsung,pwm-outputs = <0>, <1>, <2>, <3>;
+		#pwm-cells = <3>;
+		clocks = <&clock 279>;
+		clock-names = "timers";
+	};
+
 	dp_phy: video-phy@10040728 {
 		compatible = "samsung,exynos5250-dp-video-phy";
 		reg = <0x10040728 4>;