| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/leds/leds-pwm.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: LEDs connected to PWM |
| |
| maintainers: |
| - Pavel Machek <pavel@ucw.cz> |
| |
| description: |
| Each LED is represented as a sub-node of the pwm-leds device. Each |
| node's name represents the name of the corresponding LED. |
| |
| properties: |
| compatible: |
| const: pwm-leds |
| |
| patternProperties: |
| "^led(-[0-9a-f]+)?$": |
| type: object |
| |
| $ref: common.yaml# |
| |
| properties: |
| pwms: |
| maxItems: 1 |
| |
| pwm-names: true |
| |
| max-brightness: |
| description: |
| Maximum brightness possible for the LED |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| |
| active-low: |
| description: |
| For PWMs where the LED is wired to supply rather than ground. |
| type: boolean |
| |
| required: |
| - pwms |
| - max-brightness |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| |
| #include <dt-bindings/leds/common.h> |
| |
| led-controller { |
| compatible = "pwm-leds"; |
| |
| led-1 { |
| label = "omap4::keypad"; |
| pwms = <&twl_pwm 0 7812500>; |
| max-brightness = <127>; |
| }; |
| |
| led-2 { |
| color = <LED_COLOR_ID_GREEN>; |
| function = LED_FUNCTION_CHARGING; |
| pwms = <&twl_pwmled 0 7812500>; |
| max-brightness = <255>; |
| }; |
| }; |
| |
| ... |
