diff options
Diffstat (limited to 'Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml b/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml new file mode 100644 index 0000000000..f2d1dc7e7b --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/pwm-rockchip.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip PWM controller + +maintainers: + - Heiko Stuebner <heiko@sntech.de> + +properties: + compatible: + oneOf: + - const: rockchip,rk2928-pwm + - const: rockchip,rk3288-pwm + - const: rockchip,rk3328-pwm + - const: rockchip,vop-pwm + - items: + - const: rockchip,rk3036-pwm + - const: rockchip,rk2928-pwm + - items: + - enum: + - rockchip,rk3128-pwm + - rockchip,rk3368-pwm + - rockchip,rk3399-pwm + - rockchip,rv1108-pwm + - const: rockchip,rk3288-pwm + - items: + - enum: + - rockchip,px30-pwm + - rockchip,rk3308-pwm + - rockchip,rk3568-pwm + - rockchip,rk3588-pwm + - const: rockchip,rk3328-pwm + + reg: + maxItems: 1 + + clocks: + minItems: 1 + maxItems: 2 + + clock-names: + maxItems: 2 + + "#pwm-cells": + enum: [2, 3] + description: + Must be 2 (rk2928) or 3 (rk3288 and later). + See pwm.yaml for a description of the cell format. + +required: + - compatible + - reg + +allOf: + - $ref: pwm.yaml# + + - if: + properties: + compatible: + contains: + enum: + - rockchip,rk3328-pwm + - rockchip,rv1108-pwm + + then: + properties: + clocks: + items: + - description: Used to derive the functional clock for the device. + - description: Used as the APB bus clock. + + clock-names: + items: + - const: pwm + - const: pclk + + required: + - clocks + - clock-names + + else: + properties: + clocks: + maxItems: 1 + description: + Used both to derive the functional clock + for the device and as the bus clock. + + required: + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/rk3188-cru-common.h> + pwm0: pwm@20030000 { + compatible = "rockchip,rk2928-pwm"; + reg = <0x20030000 0x10>; + clocks = <&cru PCLK_PWM01>; + #pwm-cells = <2>; + }; |