mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
a7a0db07e9
Add documentation for STMicroelectronics STM32 Low-Power Timer binding. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
STMicroelectronics STM32 Low-Power Timer
|
|
|
|
The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several
|
|
functions:
|
|
- PWM output (with programmable prescaler, configurable polarity)
|
|
- Quadrature encoder, counter
|
|
- Trigger source for STM32 ADC/DAC (LPTIM_OUT)
|
|
|
|
Required properties:
|
|
- compatible: Must be "st,stm32-lptimer".
|
|
- reg: Offset and length of the device's register set.
|
|
- clocks: Phandle to the clock used by the LP Timer module.
|
|
- clock-names: Must be "mux".
|
|
- #address-cells: Should be '<1>'.
|
|
- #size-cells: Should be '<0>'.
|
|
|
|
Optional subnodes:
|
|
- pwm: See ../pwm/pwm-stm32-lp.txt
|
|
- counter: See ../iio/timer/stm32-lptimer-cnt.txt
|
|
- trigger: See ../iio/timer/stm32-lptimer-trigger.txt
|
|
|
|
Example:
|
|
|
|
timer@40002400 {
|
|
compatible = "st,stm32-lptimer";
|
|
reg = <0x40002400 0x400>;
|
|
clocks = <&timer_clk>;
|
|
clock-names = "mux";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
pwm {
|
|
compatible = "st,stm32-pwm-lp";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&lppwm1_pins>;
|
|
};
|
|
|
|
trigger@0 {
|
|
compatible = "st,stm32-lptimer-trigger";
|
|
reg = <0>;
|
|
};
|
|
|
|
counter {
|
|
compatible = "st,stm32-lptimer-counter";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&lptim1_in_pins>;
|
|
};
|
|
};
|