[PATCH v2 2/3] ARM64: dts: meson-gx: add clock CLKID_RNG0 to hwrng node
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: 2017-02-21 20:18:16
Also in:
linux-amlogic, linux-clk, linux-crypto
Subsystem:
arm/amlogic meson soc support, hardware random number generator core, open firmware and flattened device tree bindings, the rest · Maintainers:
Neil Armstrong, Kevin Hilman, Olivia Mackall, Herbert Xu, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add clock CLKID_RNG0 to HW randon number generator node and extend the DT binding documentation accordingly. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> --- v2: - splitted first version of patch into two - add DT binding documentation - mention that clock is optional - replace spaces with tabs in DT binding example --- Documentation/devicetree/bindings/rng/amlogic,meson-rng.txt | 8 ++++++-- arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 2 +- arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 5 +++++ 3 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/rng/amlogic,meson-rng.txt b/Documentation/devicetree/bindings/rng/amlogic,meson-rng.txt
index 202f2d09..4c012a04 100644
--- a/Documentation/devicetree/bindings/rng/amlogic,meson-rng.txt
+++ b/Documentation/devicetree/bindings/rng/amlogic,meson-rng.txt@@ -5,10 +5,14 @@ Required properties: - compatible : should be "amlogic,meson-rng" - reg : Specifies base physical address and size of the registers. +- clocks : Optional core clock +- clock-names: Name of core clock, must be "core" Example: rng { - compatible = "amlogic,meson-rng"; - reg = <0x0 0xc8834000 0x0 0x4>; + compatible = "amlogic,meson-rng"; + reg = <0x0 0xc8834000 0x0 0x4>; + clocks = <&clkc CLKID_RNG0>; + clock-names = "core"; };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 5d995f77..620495a4 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi@@ -380,7 +380,7 @@ #size-cells = <2>; ranges = <0x0 0x0 0x0 0xc8834000 0x0 0x2000>; - rng { + hwrng: rng { compatible = "amlogic,meson-rng"; reg = <0x0 0x0 0x0 0x4>; };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 04b3324b..a375cb21 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi@@ -524,3 +524,8 @@ &vpu { compatible = "amlogic,meson-gxbb-vpu", "amlogic,meson-gx-vpu"; }; + +&hwrng { + clocks = <&clkc CLKID_RNG0>; + clock-names = "core"; +};
--
2.11.1