linux-kernel - [PATCH 1/3] dt-bindings: Document the STM32 HW RNG bindings

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Message-Id: <1443904519-24012-2-git-send-email-daniel.thompson@linaro.org>
Date:	Sat,  3 Oct 2015 21:35:17 +0100
From:	Daniel Thompson <daniel.thompson@...aro.org>
To:	Matt Mackall <mpm@...enic.com>,
	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Daniel Thompson <daniel.thompson@...aro.org>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>
Subject: [PATCH 1/3] dt-bindings: Document the STM32 HW RNG bindings

This adds documenttaion of device tree binds for the STM32 hardware
random number generator.

Signed-off-by: Daniel Thompson <daniel.thompson@...aro.org>
---
 .../devicetree/bindings/hwrng/stm32-rng.txt         | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwrng/stm32-rng.txt

diff --git a/Documentation/devicetree/bindings/hwrng/stm32-rng.txt b/Documentation/devicetree/bindings/hwrng/stm32-rng.txt
new file mode 100644
index 000000000000..47f04176f93b
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwrng/stm32-rng.txt
@@ -0,0 +1,21 @@
+STMicroelectronics STM32 HW RNG
+===============================
+
+The STM32 hardware random number generator is a simple fixed purpose IP and
+is fully separated from other crypto functions.
+
+Required properties:
+
+- compatible : Should be "st,stm32-rng"
+- reg : Should be register base and length as documented in the datasheet
+- interrupts : The designated IRQ line for the RNG
+- clocks : The clock needed to enable the RNG
+
+Example:
+
+	rng: rng@...60800 {
+		compatible = "st,stm32-rng";
+		reg = <0x50060800 0x400>;
+		interrupts = <80>;
+		clocks = <&rcc 0 38>;
+	};
-- 
2.4.3

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