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[2003:c6:ebdc:4000:bd34:27cb:45ef:f408]) by smtp.googlemail.com with ESMTPSA id w16sm751028wmd.4.2017.02.21.12.18.30 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Feb 2017 12:18:30 -0800 (PST) Subject: [PATCH v2 2/3] ARM64: dts: meson-gx: add clock CLKID_RNG0 to hwrng node To: Jerome Brunet , Kevin Hilman , Herbert Xu , Neil Armstrong , linux-amlogic@lists.infradead.org, linux-crypto@vger.kernel.org, Stephen Boyd , Michael Turquette References: Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org From: Heiner Kallweit Message-ID: <8bf052e3-de8f-dbdf-be76-369a7bb1ed15@gmail.com> Date: Tue, 21 Feb 2017 21:18:16 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add clock CLKID_RNG0 to HW randon number generator node and extend the DT binding documentation accordingly. Signed-off-by: Heiner Kallweit Acked-by: Rob Herring --- 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"; +};