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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/pwm/pwm-st.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm-st.txt | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-st.txt b/Documentation/devicetree/bindings/pwm/pwm-st.txt new file mode 100644 index 000000000..19fce774c --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-st.txt @@ -0,0 +1,43 @@ +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>; +}; |