| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | STMicroelectronics STM32 Low-Power Timer PWM |
| 2 | |
| 3 | STM32 Low-Power Timer provides single channel PWM. |
| 4 | |
| 5 | Must be a sub-node of an STM32 Low-Power Timer device tree node. |
| 6 | See ../mfd/stm32-lptimer.txt for details about the parent node. |
| 7 | |
| 8 | Required parameters: |
| 9 | - compatible: Must be "st,stm32-pwm-lp". |
| 10 | - #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells |
| 11 | bindings defined in pwm.txt. |
| 12 | |
| 13 | Optional properties: |
| 14 | - pinctrl-names: Set to "default". An additional "sleep" state can be |
| 15 | defined to set pins in sleep state when in low power. |
| 16 | - pinctrl-n: Phandle(s) pointing to pin configuration node for PWM, |
| 17 | respectively for "default" and "sleep" states. |
| 18 | |
| 19 | Example: |
| 20 | timer@40002400 { |
| 21 | compatible = "st,stm32-lptimer"; |
| 22 | ... |
| 23 | pwm { |
| 24 | compatible = "st,stm32-pwm-lp"; |
| 25 | #pwm-cells = <3>; |
| 26 | pinctrl-names = "default", "sleep"; |
| 27 | pinctrl-0 = <&lppwm1_pins>; |
| 28 | pinctrl-1 = <&lppwm1_sleep_pins>; |
| 29 | }; |
| 30 | }; |