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pwm: add rockchip-pwm.txt

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许盛飞
2014-04-30 10:49:48 +08:00
parent 174296e734
commit e623668278
1 changed files with 31 additions and 0 deletions
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Documentation/devicetree/bindings/pwm/rockchip-pwm.txt Normal file
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Rockchip PWM controller
Required properties:
- compatible: should be "rockchip,<name>-pwm"
- reg: physical base address and length of the controller's registers
- #pwm-cells: should be 2. The first cell specifies the per-chip index
of the PWM to use and the second cell is the period in nanoseconds.
- pinctrl-names: must contain a "default" entry.
- pinctrl-0: the pincontrol settings to configurethe.
- clocks: phandle to the PWM source clock
- clock-names: list of clock names sorted in the same order as the clocks.
- status: for device state control (enabled/disabled).
Example:
pwm1: pwm@53fb4000 {
#pwm-cells = <2>;
compatible = "fsl,imx53-pwm", "fsl,imx27-pwm";
reg = <0x53fb4000 0x4000>;
interrupts = <61>;
};
pwm0: pwm@ff680000 {
compatible = "rockchip,rk-pwm";
reg = <0xff680000 0x10>;
#pwm-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&pwm0_pin>;
clocks = <&clk_gates11 11>;
clock-names = "pclk_pwm";
status = "disabled";
};