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| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2014-10-07 15:38:15 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2014-11-17 12:20:18 +0100 |
| commit | 2899e12fc9864db600b2fe9707ebb97203fe4c00 (patch) | |
| tree | 994c1ba998144ccbf6704baa43adadac3bf0ec43 /Documentation/devicetree/bindings/pwm | |
| parent | pwm: add support for atmel-hlcdc-pwm device (diff) | |
| download | linux-2899e12fc9864db600b2fe9707ebb97203fe4c00.tar.xz linux-2899e12fc9864db600b2fe9707ebb97203fe4c00.zip | |
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.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt new file mode 100644 index 000000000000..cfda0d57d302 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt @@ -0,0 +1,29 @@ +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>; + }; + }; |