Define binding for pwm-stm32
Signed-off-by: Benjamin Gaignard benjamin.gaignard@st.com --- .../devicetree/bindings/pwm/pwm-stm32.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt new file mode 100644 index 0000000..819e024 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt @@ -0,0 +1,43 @@ +STMicroelectronics PWM driver bindings for STM32 +-------------------------------------- + +Must be a child of STM32 multifunctions timer driver + +Required parameters: +- compatible : "st,stm32-pwm1" + "st,stm32-pwm2" + "st,stm32-pwm3" + "st,stm32-pwm4" + "st,stm32-pwm5" + "st,stm32-pwm8" + "st,stm32-pwm9" + "st,stm32-pwm10" + "st,stm32-pwm11" + "st,stm32-pwm12" + "st,stm32-pwm13" + "st,stm32-pwm14" +- 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]. + +Optional parameters: +- st,breakinput-polarity if set enable break input feature. + The value define the active polarity: + - 0 (active LOW) + - 1 (active HIGH) + +[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt + +Example: + mfd_timer1: mfdtimer1@40010000 { + compatible = "st,stm32-mfd-timer1"; + reg = <0x40010000 0x400>; + clocks = <&rcc 0 160>; + clock-names = "mfd_timer_clk"; + interrupts = <27>; + + pwm1: pwm1@40010000 { + compatible = "st,stm32-pwm1"; + }; + };