linux-kernel - [RFC][PATCHv5 4/4] Documentation: Add device tree bindings for Freescale FTM PWM.

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Date:	Mon, 28 Oct 2013 17:05:51 +0800
From:	Xiubo Li <Li.Xiubo@...escale.com>
To:	<r65073@...escale.com>, <thierry.reding@...il.com>,
	<grant.likely@...aro.org>, <ian.campbell@...rix.com>,
	<mark.rutland@....com>, <pawel.moll@....com>,
	<rob.herring@...xeda.com>, <matt.porter@...aro.org>
CC:	<s.hauer@...gutronix.de>, <swarren@...dotorg.org>,
	<t.figa@...sung.com>, <linux@....linux.org.uk>, <rob@...dley.net>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-pwm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>
Subject: [RFC][PATCHv5 4/4] Documentation: Add device tree bindings for Freescale FTM PWM.

The RFC patch only added "See ../clock/clock-bindings.txt for details of
the property values."



This adds the Document for Freescale FTM PWM driver under
Documentation/devicetree/bindings/pwm/.

Signed-off-by: Xiubo Li <Li.Xiubo@...escale.com>
---
 .../devicetree/bindings/pwm/pwm-fsl-ftm.txt        | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt

diff --git a/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt b/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
new file mode 100644
index 0000000..175b762
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
@@ -0,0 +1,34 @@
+Freescale FTM PWM controller
+
+Required properties:
+- compatible: Should be "fsl,vf610-ftm-pwm"
+- reg: Physical base address and length of the controller's registers
+- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of
+  the cells format.
+- clock-names : Includes the following module clock source entries:
+    "ftm0" (system clock),
+    "ftm0_fix_sel" (fixed frequency clock),
+    "ftm0_ext_sel" (external clock)
+- clocks : Must contain a clock specifier for each entry in clock-names,
+  See ../clock/clock-bindings.txt for details of the property values.
+- fsl,pwm-counter-clk: The FTM PWM counter clock source, should be one of the
+  entries in clock-names.
+- pinctrl-names: must contain a "default" entry.
+- pinctrl-NNN: One property must exist for each entry in pinctrl-names.
+  See ../pinctrl/pinctrl-bindings.txt for details of the property values.
+
+
+Example:
+
+pwm0: pwm@...38000 {
+		compatible = "fsl,vf610-ftm-pwm";
+		reg = <0x40038000 0x1000>;
+		#pwm-cells = <3>;
+		clock-names = "ftm0", "ftm0_fix_sel", "ftm0_ext_sel";
+		clocks = <&clks VF610_CLK_FTM0>,
+			<&clks VF610_CLK_FTM0_FIX_SEL>,
+			<&clks VF610_CLK_FTM0_EXT_SEL>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pwm0_1>;
+		fsl,pwm-counter-clk = "ftm0_ext_sel";
+};
-- 
1.8.4


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