[PATCH v2 2/3] pwm: rockchip: document device tree bindings

[Beniamino Galvani]

This adds binding documentation for Rockchip SoC PWM driver.

Signed-off-by: Beniamino Galvani <b.galvani@xxxxxxxxx>
---
 .../devicetree/bindings/pwm/pwm-rockchip.txt          |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/pwm-rockchip.txt

diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
new file mode 100644
index 0000000..3182126
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
@@ -0,0 +1,17 @@
+Rockchip PWM controller
+
+Required properties:
+ - compatible: should be "rockchip,rk2928-pwm"
+ - reg: physical base address and length of the controller's registers
+ - clocks: phandle and clock specifier of the PWM reference clock
+ - #pwm-cells: should be 2. See pwm.txt in this directory for a
+   description of the cell format.
+
+Example:
+
+	pwm0: pwm@20030000 {
+		compatible = "rockchip,rk2928-pwm";
+		reg = <0x20030000 0x10>;
+		clocks = <&cru PCLK_PWM01>;
+		#pwm-cells = <2>;
+	};
-- 
1.7.10.4

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