ARM: dts: exynos: Add nodes for True Random Number Generator

Add nodes for the True Random Number Generator found in Samsung Exynos
5250+ SoCs.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/boot/dts/exynos5.dtsi

@@ -216,6 +216,11 @@ prng: rng@10830400 {
 		      reg = <0x10830400 0x200>;
 		};
 
+		trng: rng@10830600 {
+		      compatible = "samsung,exynos5250-trng";
+		      reg = <0x10830600 0x100>;
+		};
+
 		g2d: g2d@10850000 {
 			compatible = "samsung,exynos5250-g2d";
 			reg = <0x10850000 0x1000>;

arch/arm/boot/dts/exynos5250.dtsi

@@ -1111,4 +1111,9 @@ &sss {
 	clock-names = "secss";
 };
 
+&trng {
+	clocks = <&clock CLK_SSS>;
+	clock-names = "secss";
+};
+
 #include "exynos5250-pinctrl.dtsi"

arch/arm/boot/dts/exynos5410.dtsi

@@ -392,6 +392,11 @@ &sromc {
 		  3 0 0x07000000 0x20000>;
 };
 
+&trng {
+	clocks = <&clock CLK_SSS>;
+	clock-names = "secss";
+};
+
 &usbdrd3_0 {
 	clocks = <&clock CLK_USBD300>;
 	clock-names = "usbdrd30";

arch/arm/boot/dts/exynos5420.dtsi

@@ -1479,6 +1479,11 @@ &sss {
 	clock-names = "secss";
 };
 
+&trng {
+	clocks = <&clock CLK_SSS>;
+	clock-names = "secss";
+};
+
 &usbdrd3_0 {
 	clocks = <&clock CLK_USBD300>;
 	clock-names = "usbdrd30";