dt-bindings: hwrng: Add Samsung Exynos 5250+ True RNG bindings

Add binding documentation for the True Random Number Generator found on Samsung Exynos 5250+ SoCs. Acked-by: Rob Herring <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Łukasz Stelmach <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
niw · Oct 23, 2019 · e53619c · e53619c
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commit e53619c
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diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.txt b/Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.txt
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+Exynos True Random Number Generator
+
+Required properties:
+
+- compatible  : Should be "samsung,exynos5250-trng".
+- reg         : Specifies base physical address and size of the registers map.
+- clocks      : Phandle to clock-controller plus clock-specifier pair.
+- clock-names : "secss" as a clock name.
+
+Example:
+
+	rng@10830600 {
+		compatible = "samsung,exynos5250-trng";
+		reg = <0x10830600 0x100>;
+		clocks = <&clock CLK_SSS>;
+		clock-names = "secss";
+	};