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authorBoris Brezillon <boris.brezillon@free-electrons.com>2014-10-07 15:38:15 +0200
committerThierry Reding <thierry.reding@gmail.com>2014-11-17 12:20:18 +0100
commit2899e12fc9864db600b2fe9707ebb97203fe4c00 (patch)
tree994c1ba998144ccbf6704baa43adadac3bf0ec43 /Documentation/devicetree/bindings/pwm
parent2b4984bef47a5920bb6ed7f5ede90d8302fee554 (diff)
pwm: add DT bindings documentation for atmel-hlcdc-pwm driver
The HLCDC IP available in some Atmel SoCs (i.e. at91sam9x5, at91sam9n12 or sama5d3 families for instance) provides a PWM device. The DT bindings used for this PWM device is following the default 3 cells bindings described in Documentation/devicetree/bindings/pwm/pwm.txt. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pwm')
-rw-r--r--Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt29
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diff --git a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt
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+++ b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt
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+Device-Tree bindings for Atmel's HLCDC (High-end LCD Controller) PWM driver
+
+The Atmel HLCDC PWM is subdevice of the HLCDC MFD device.
+See ../mfd/atmel-hlcdc.txt for more details.
+
+Required properties:
+ - compatible: value should be one of the following:
+ "atmel,hlcdc-pwm"
+ - pinctr-names: the pin control state names. Should contain "default".
+ - pinctrl-0: should contain the pinctrl states described by pinctrl
+ default.
+ - #pwm-cells: should be set to 3. This PWM chip use the default 3 cells
+ bindings defined in pwm.txt in this directory.
+
+Example:
+
+ hlcdc: hlcdc@f0030000 {
+ compatible = "atmel,sama5d3-hlcdc";
+ reg = <0xf0030000 0x2000>;
+ clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>;
+ clock-names = "periph_clk","sys_clk", "slow_clk";
+
+ hlcdc_pwm: hlcdc-pwm {
+ compatible = "atmel,hlcdc-pwm";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lcd_pwm>;
+ #pwm-cells = <3>;
+ };
+ };

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