linux-kernel - [PATCH 1/2] dt-bindings: hwrng: Add Mediatek hardware random generator bindings

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Date:   Thu, 13 Apr 2017 15:05:07 +0800
From:   <sean.wang@...iatek.com>
To:     <herbert@...dor.apana.org.au>, <mpm@...enic.com>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <clabbe.montjoie@...il.com>, <prasannatsmkumar@...il.com>,
        <romain.perier@...e-electrons.com>, <shannon.nelson@...cle.com>
CC:     <weiyongjun1@...wei.com>, <devicetree@...r.kernel.org>,
        <linux-crypto@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <keyhaede@...il.com>,
        Sean Wang <sean.wang@...iatek.com>
Subject: [PATCH 1/2] dt-bindings: hwrng: Add Mediatek hardware random generator bindings

From: Sean Wang <sean.wang@...iatek.com>

Document the devicetree bindings for Mediatek random number
generator which could be found on MT7623 SoC or other similar
Mediatek SoCs.

Signed-off-by: Sean Wang <sean.wang@...iatek.com>
---
 Documentation/devicetree/bindings/rng/mtk-rng.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rng/mtk-rng.txt

diff --git a/Documentation/devicetree/bindings/rng/mtk-rng.txt b/Documentation/devicetree/bindings/rng/mtk-rng.txt
new file mode 100644
index 0000000..a6d62a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/mtk-rng.txt
@@ -0,0 +1,18 @@
+Device-Tree bindings for Mediatek random number generator
+found in Mediatek SoC family
+
+Required properties:
+- compatible	    : Should be "mediatek,mt7623-rng"
+- clocks	    : list of clock specifiers, corresponding to
+		      entries in clock-names property;
+- clock-names	    : Should contain "rng" entries;
+- reg 		    : Specifies base physical address and size of the registers
+
+Example:
+
+rng: rng@...0f000 {
+	compatible = "mediatek,mt7623-rng";
+	reg = <0 0x1020f000 0 0x1000>;
+	clocks = <&infracfg CLK_INFRA_TRNG>;
+	clock-names = "rng";
+};
-- 
1.9.1