Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt

   1 STMicroelectronics STM32 Timer quadrature encoder
   2
   3 STM32 Timer provides quadrature encoder to detect
   4 angular position and direction of rotary elements,
   5 from IN1 and IN2 input signals.
   6
   7 Must be a sub-node of an STM32 Timer device tree node.
   8 See ../mfd/stm32-timers.txt for details about the parent node.
   9
  10 Required properties:
  11 - compatible:           Must be "st,stm32-timer-counter".
  12 - pinctrl-names:        Set to "default".
  13 - pinctrl-0:            List of phandles pointing to pin configuration nodes,
  14                         to set CH1/CH2 pins in mode of operation for STM32
  15                         Timer input on external pin.
  16
  17 Example:
  18         timers@40010000 {
  19                 #address-cells = <1>;
  20                 #size-cells = <0>;
  21                 compatible = "st,stm32-timers";
  22                 reg = <0x40010000 0x400>;
  23                 clocks = <&rcc 0 160>;
  24                 clock-names = "int";
  25
  26                 counter {
  27                         compatible = "st,stm32-timer-counter";
  28                         pinctrl-names = "default";
  29                         pinctrl-0 = <&tim1_in_pins>;
  30                 };
  31         };