Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.
1 STMicroelectronics STM32 Low-Power Timer 2 3 The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several 4 functions: 5 - PWM output (with programmable prescaler, configurable polarity) 6 - Quadrature encoder, counter 7 - Trigger source for STM32 ADC/DAC (LPTIM_OUT) 8 9 Required properties: 10 - compatible: Must be "st,stm32-lptimer". 11 - reg: Offset and length of the device's register set. 12 - clocks: Phandle to the clock used by the LP Timer module. 13 - clock-names: Must be "mux". 14 - #address-cells: Should be '<1>'. 15 - #size-cells: Should be '<0>'. 16 17 Optional subnodes: 18 - pwm: See ../pwm/pwm-stm32-lp.txt 19 - counter: See ../iio/timer/stm32-lptimer-cnt.txt 20 - trigger: See ../iio/timer/stm32-lptimer-trigger.txt 21 22 Example: 23 24 timer@40002400 { 25 compatible = "st,stm32-lptimer"; 26 reg = <0x40002400 0x400>; 27 clocks = <&timer_clk>; 28 clock-names = "mux"; 29 #address-cells = <1>; 30 #size-cells = <0>; 31 32 pwm { 33 compatible = "st,stm32-pwm-lp"; 34 pinctrl-names = "default"; 35 pinctrl-0 = <&lppwm1_pins>; 36 }; 37 38 trigger@0 { 39 compatible = "st,stm32-lptimer-trigger"; 40 reg = <0>; 41 }; 42 43 counter { 44 compatible = "st,stm32-lptimer-counter"; 45 pinctrl-names = "default"; 46 pinctrl-0 = <&lptim1_in_pins>; 47 }; 48 };