linux-kernel - [PATCH v5 2/3] dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs

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Message-ID: <1574864578-467-3-git-send-email-neal.liu@mediatek.com>
Date:   Wed, 27 Nov 2019 22:22:57 +0800
From:   Neal Liu <neal.liu@...iatek.com>
To:     Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...nel.org>
CC:     Neal Liu <neal.liu@...iatek.com>,
        Crystal Guo <Crystal.Guo@...iatek.com>,
        <linux-crypto@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <wsd_upstream@...iatek.com>
Subject: [PATCH v5 2/3] dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs

Document the binding used by the MediaTek ARMv8 SoCs random
number generator with TrustZone enabled.

Signed-off-by: Neal Liu <neal.liu@...iatek.com>
---
 .../bindings/arm/firmware/mediatek,mtk-sec-rng.txt |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/firmware/mediatek,mtk-sec-rng.txt

diff --git a/Documentation/devicetree/bindings/arm/firmware/mediatek,mtk-sec-rng.txt b/Documentation/devicetree/bindings/arm/firmware/mediatek,mtk-sec-rng.txt
new file mode 100644
index 0000000..741fcdc
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/firmware/mediatek,mtk-sec-rng.txt
@@ -0,0 +1,18 @@
+MediaTek random number generator with TrustZone enabled
+
+Required properties:
+- compatible       : Should contain "mediatek,mtk-sec-rng"
+
+- method           : The method of calling Arm Trusted Firmware. Permitted
+		     values are:
+
+		     "smc" : SMC #0, with the register assignments specified
+		     in this binding.
+
+Example:
+	firmware {
+		hwrng {
+			compatible = "mediatek,mtk-sec-rng";
+			methods = "smc";
+		};
+	};
-- 
1.7.9.5