Kernel-4.18.0-80.el8_stm32-lptimer-cnt

STMicroelectronics STM32 Low-Power Timer quadrature encoder and counter

STM32 Low-Power Timer provides several counter modes. It can be used as:

• quadrature encoder to detect angular position and direction of rotary
  elements, from IN1 and IN2 input signals.
• simple counter from IN1 input signal.

Must be a sub-node of an STM32 Low-Power Timer device tree node.
See ../mfd/stm32-lptimer.txt for details about the parent node.

Required properties:

• compatible: Must be “st,stm32-lptimer-counter”.
• pinctrl-names: Set to “default”.
• pinctrl-0: List of phandles pointing to pin configuration nodes,

        to set IN1/IN2 pins in mode of operation for Low-Power
        Timer input on external pin.
  

Example:
timer@40002400 {
compatible = “st,stm32-lptimer”;
…
counter {
compatible = “st,stm32-lptimer-counter”;
pinctrl-names = “default”;
pinctrl-0 = <&lptim1_in_pins>;
};
};