linux-kernel - [PATCH v2 1/4] dt-bindings: hwlock: Document STM32 hwspinlock bindings

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Message-Id: <20181108090502.14543-2-benjamin.gaignard@st.com>
Date:   Thu,  8 Nov 2018 10:04:59 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, alexandre.torgue@...com
Cc:     linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v2 1/4] dt-bindings: hwlock: Document STM32 hwspinlock bindings

Add bindings for STM32 hardware spinlock device

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
version 2 :
- change clock name from hwspinlock to hsem to be align with hardware
  documentation

 .../bindings/hwlock/st,stm32-hwspinlock.txt        | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt

diff --git a/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt
new file mode 100644
index 000000000000..6e933b218574
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt
@@ -0,0 +1,23 @@
+STM32 Hardware Spinlock Device Binding
+-------------------------------------
+
+Required properties :
+- compatible : should be "st,stm32-hwspinlock".
+- reg : the register address of hwspinlock.
+- #hwlock-cells : hwlock users only use the hwlock id to represent a specific
+	hwlock, so the number of cells should be <1> here.
+- clock-names : Must contain "hwspinlock".
+- clocks : Must contain a phandle entry for the clock in clock-names, see the
+	common clock bindings.
+
+Please look at the generic hwlock binding for usage information for consumers,
+"Documentation/devicetree/bindings/hwlock/hwlock.txt"
+
+Example of hwlock provider:
+	hwspinlock@...00000 {
+		compatible = "st,stm32-hwspinlock";
+		#hwlock-cells = <1>;
+		reg = <0x4c000000 0x400>;
+		clocks = <&rcc HSEM>;
+		clock-names = "hsem";
+	};
-- 
2.15.0