mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.4 KiB
43 lines
1.4 KiB
STMicroelectronics PWM driver bindings |
|
-------------------------------------- |
|
|
|
Required parameters: |
|
- compatible : "st,pwm" |
|
- #pwm-cells : Number of cells used to specify a PWM. First cell |
|
specifies the per-chip index of the PWM to use and the |
|
second cell is the period in nanoseconds - fixed to 2 |
|
for STiH41x. |
|
- reg : Physical base address and length of the controller's |
|
registers. |
|
- pinctrl-names: Set to "default". |
|
- pinctrl-0: List of phandles pointing to pin configuration nodes |
|
for PWM module. |
|
For Pinctrl properties, please refer to [1]. |
|
- clock-names: Valid entries are "pwm" and/or "capture". |
|
- clocks: phandle of the clock used by the PWM module. |
|
For Clk properties, please refer to [2]. |
|
- interrupts: IRQ for the Capture device |
|
|
|
Optional properties: |
|
- st,pwm-num-chan: Number of available PWM channels. Default is 0. |
|
- st,capture-num-chan: Number of available Capture channels. Default is 0. |
|
|
|
[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt |
|
[2] Documentation/devicetree/bindings/clock/clock-bindings.txt |
|
|
|
Example: |
|
|
|
pwm1: pwm@fe510000 { |
|
compatible = "st,pwm"; |
|
reg = <0xfe510000 0x68>; |
|
#pwm-cells = <2>; |
|
pinctrl-names = "default"; |
|
pinctrl-0 = <&pinctrl_pwm1_chan0_default |
|
&pinctrl_pwm1_chan1_default |
|
&pinctrl_pwm1_chan2_default |
|
&pinctrl_pwm1_chan3_default>; |
|
clocks = <&clk_sysin>; |
|
clock-names = "pwm"; |
|
st,pwm-num-chan = <4>; |
|
st,capture-num-chan = <2>; |
|
};
|
|
|