1STMicroelectronics STM32 Timers PWM bindings 2 3Must be a sub-node of an STM32 Timers device tree node. 4See ../mfd/stm32-timers.txt for details about the parent node. 5 6Required parameters: 7- compatible: Must be "st,stm32-pwm". 8- pinctrl-names: Set to "default". 9- pinctrl-0: List of phandles pointing to pin configuration nodes for PWM module. 10 For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt 11- #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells 12 bindings defined in pwm.txt. 13 14Optional parameters: 15- st,breakinput: One or two <index level filter> to describe break input configurations. 16 "index" indicates on which break input (0 or 1) the configuration 17 should be applied. 18 "level" gives the active level (0=low or 1=high) of the input signal 19 for this configuration. 20 "filter" gives the filtering value to be applied. 21 22Example: 23 timers@40010000 { 24 #address-cells = <1>; 25 #size-cells = <0>; 26 compatible = "st,stm32-timers"; 27 reg = <0x40010000 0x400>; 28 clocks = <&rcc 0 160>; 29 clock-names = "int"; 30 31 pwm { 32 compatible = "st,stm32-pwm"; 33 #pwm-cells = <3>; 34 pinctrl-0 = <&pwm1_pins>; 35 pinctrl-names = "default"; 36 st,breakinput = <0 1 5>; 37 }; 38 }; 39