linux-kernel - [PATCHv7 4/4] Documentation: Add device tree bindings for Freescale FTM PWM.

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Message-ID: <1386925027-16288-5-git-send-email-Li.Xiubo@freescale.com>
Date:	Fri, 13 Dec 2013 16:57:07 +0800
From:	Xiubo Li <Li.Xiubo@...escale.com>
To:	<thierry.reding@...il.com>
CC:	<mark.rutland@....com>, <s.hauer@...gutronix.de>,
	<galak@...eaurora.org>, <swarren@...dotorg.org>,
	<t.figa@...sung.com>, <grant.likely@...aro.org>,
	<matt.porter@...aro.org>, <linux@....linux.org.uk>,
	<rob@...dley.net>, <tomasz.figa@...il.com>,
	<ian.campbell@...rix.com>, <pawel.moll@....com>,
	<rob.herring@...xeda.com>, <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: [PATCHv7 4/4] Documentation: Add device tree bindings for Freescale FTM PWM.

This adds the binding documentation for Freescale FlexTimer Module
(FTM) PWM driver under Documentation/devicetree/bindings/pwm/.

Signed-off-by: Xiubo Li <Li.Xiubo@...escale.com>
Reviewed-by: Sascha Hauer <s.hauer@...gutronix.de>
Acked-by: Kumar Gala <galak@...eaurora.org>
---
 .../devicetree/bindings/pwm/pwm-fsl-ftm.txt        | 38 ++++++++++++++++++++++
 1 file changed, 38 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..6ae6377
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
@@ -0,0 +1,38 @@
+Freescale FlexTimer Module (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 : Should include the following module clock source entries:
+    "ftm_sys" (module clock, also can be used as counter clock),
+    "ftm_ext" (external counter clock),
+    "ftm_fix" (fixed counter clock),
+    "ftm_cnt_clk_en" (external and fixed counter clock enable/disable).
+- clocks : Must contain a clock specifier for each entry in clock-names,
+  See clock/clock-bindings.txt for details of the property values.
+- 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.
+- big-endian: If this property is absent, the little endian mode will be in
+  use as default, or the big endian mode will be in use for all the device
+  registers.
+
+
+Example:
+
+pwm0: pwm@...38000 {
+		compatible = "fsl,vf610-ftm-pwm";
+		reg = <0x40038000 0x1000>;
+		#pwm-cells = <3>;
+		clock-names = "ftm_sys", "ftm_ext",
+				"ftm_fix", "ftm_cnt_clk_en";
+		clocks = <&clks VF610_CLK_FTM0>,
+			<&clks VF610_CLK_FTM0_EXT_SEL>,
+			<&clks VF610_CLK_FTM0_FIX_SEL>,
+			<&clks VF610_CLK_FTM0_EXT_FIX_EN>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pwm0_1>;
+		big-endian;
+};
-- 
1.8.4


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