linux-kernel - [PATCH v9 3/6] clk: hi6220: Document devicetree bindings for hi6220 clock

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Message-ID: <1432950661-23060-4-git-send-email-bintian.wang@huawei.com>
Date:	Sat, 30 May 2015 09:50:58 +0800
From:	Bintian Wang <bintian.wang@...wei.com>
To:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <catalin.marinas@....com>,
	<will.deacon@....com>, <devicetree@...r.kernel.org>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<khilman@...aro.org>, <mturquette@...aro.org>,
	<rob.herring@...aro.org>, <zhangfei.gao@...aro.org>,
	<haojian.zhuang@...aro.org>, <xuwei5@...ilicon.com>,
	<jh80.chung@...sung.com>, <olof@...om.net>, <yanhaifeng@...il.com>,
	<sboyd@...eaurora.org>, <xuejiancheng@...wei.com>,
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CC:	<xuyiping@...ilicon.com>, <wangbinghui@...ilicon.com>,
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Subject: [PATCH v9 3/6] clk: hi6220: Document devicetree bindings for hi6220 clock

Document DT files bindings for Hisilicon hi6220 clock.

Signed-off-by: Bintian Wang <bintian.wang@...wei.com>
Acked-by: Haojian Zhuang <haojian.zhuang@...aro.org>
Suggested-by: Arnd Bergmann <arnd@...db.de>
Acked-by: Stephen Boyd <sboyd@...eaurora.org>
---
 .../devicetree/bindings/clock/hi6220-clock.txt     |   34 ++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/hi6220-clock.txt

diff --git a/Documentation/devicetree/bindings/clock/hi6220-clock.txt b/Documentation/devicetree/bindings/clock/hi6220-clock.txt
new file mode 100644
index 0000000..53ddb19
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/hi6220-clock.txt
@@ -0,0 +1,34 @@
+* Hisilicon Hi6220 Clock Controller
+
+Clock control registers reside in different Hi6220 system controllers,
+please refer the following document to know more about the binding rules
+for these system controllers:
+
+Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+
+Required Properties:
+
+- compatible: the compatible should be one of the following strings to
+	indicate the clock controller functionality.
+
+	- "hisilicon,hi6220-aoctrl"
+	- "hisilicon,hi6220-sysctrl"
+	- "hisilicon,hi6220-mediactrl"
+	- "hisilicon,hi6220-pmctrl"
+
+- reg: physical base address of the controller and length of memory mapped
+  region.
+
+- #clock-cells: should be 1.
+
+For example:
+	sys_ctrl: sys_ctrl {
+		compatible = "hisilicon,hi6220-sysctrl", "syscon";
+		reg = <0x0 0xf7030000 0x0 0x2000>;
+		#clock-cells = <1>;
+	};
+
+Each clock is assigned an identifier and client nodes use this identifier
+to specify the clock which they consume.
+
+All these identifier could be found in <dt-bindings/clock/hi6220-clock.h>.
-- 
1.7.9.5

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