102 lines
2.0 KiB
YAML
102 lines
2.0 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pwm/pwm-rockchip.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Rockchip PWM controller
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maintainers:
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- Heiko Stuebner <heiko@sntech.de>
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properties:
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compatible:
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oneOf:
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- const: rockchip,rk2928-pwm
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- const: rockchip,rk3288-pwm
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- const: rockchip,rk3328-pwm
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- const: rockchip,vop-pwm
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- items:
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- const: rockchip,rk3036-pwm
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- const: rockchip,rk2928-pwm
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- items:
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- enum:
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- rockchip,rk3368-pwm
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- rockchip,rk3399-pwm
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- rockchip,rv1108-pwm
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- const: rockchip,rk3288-pwm
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- items:
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- enum:
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- rockchip,px30-pwm
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- rockchip,rk3308-pwm
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- rockchip,rk3568-pwm
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- const: rockchip,rk3328-pwm
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reg:
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maxItems: 1
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clocks:
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minItems: 1
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maxItems: 2
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clock-names:
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maxItems: 2
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"#pwm-cells":
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enum: [2, 3]
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description:
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Must be 2 (rk2928) or 3 (rk3288 and later).
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See pwm.yaml for a description of the cell format.
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required:
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- compatible
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- reg
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- "#pwm-cells"
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if:
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properties:
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compatible:
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contains:
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enum:
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- rockchip,rk3328-pwm
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- rockchip,rv1108-pwm
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then:
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properties:
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clocks:
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items:
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- description: Used to derive the functional clock for the device.
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- description: Used as the APB bus clock.
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clock-names:
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items:
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- const: pwm
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- const: pclk
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required:
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- clocks
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- clock-names
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else:
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properties:
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clocks:
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maxItems: 1
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description:
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Used both to derive the functional clock
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for the device and as the bus clock.
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required:
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- clocks
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/rk3188-cru-common.h>
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pwm0: pwm@20030000 {
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compatible = "rockchip,rk2928-pwm";
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reg = <0x20030000 0x10>;
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clocks = <&cru PCLK_PWM01>;
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#pwm-cells = <2>;
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};
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