pwm-rockchip.yaml

  1# SPDX-License-Identifier: GPL-2.0
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/pwm/pwm-rockchip.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Rockchip PWM controller
  8
  9maintainers:
 10  - Heiko Stuebner <heiko@sntech.de>
 11
 12properties:
 13  compatible:
 14    oneOf:
 15      - const: rockchip,rk2928-pwm
 16      - const: rockchip,rk3288-pwm
 17      - const: rockchip,rk3328-pwm
 18      - const: rockchip,vop-pwm
 19      - items:
 20          - const: rockchip,rk3036-pwm
 21          - const: rockchip,rk2928-pwm
 22      - items:
 23          - enum:
 24              - rockchip,rk3128-pwm
 25              - rockchip,rk3368-pwm
 26              - rockchip,rk3399-pwm
 27              - rockchip,rv1108-pwm
 28          - const: rockchip,rk3288-pwm
 29      - items:
 30          - enum:
 31              - rockchip,px30-pwm
 32              - rockchip,rk3308-pwm
 33              - rockchip,rk3528-pwm
 34              - rockchip,rk3562-pwm
 35              - rockchip,rk3568-pwm
 36              - rockchip,rk3588-pwm
 37              - rockchip,rv1126-pwm
 38          - const: rockchip,rk3328-pwm
 39
 40  reg:
 41    maxItems: 1
 42
 43  clocks:
 44    minItems: 1
 45    maxItems: 2
 46
 47  clock-names:
 48    maxItems: 2
 49
 50  "#pwm-cells":
 51    enum: [2, 3]
 52    description:
 53      Must be 2 (rk2928) or 3 (rk3288 and later).
 54      See pwm.yaml for a description of the cell format.
 55
 56required:
 57  - compatible
 58  - reg
 59
 60allOf:
 61  - $ref: pwm.yaml#
 62
 63  - if:
 64      properties:
 65        compatible:
 66          contains:
 67            enum:
 68              - rockchip,rk3328-pwm
 69              - rockchip,rv1108-pwm
 70
 71    then:
 72      properties:
 73        clocks:
 74          items:
 75            - description: Used to derive the functional clock for the device.
 76            - description: Used as the APB bus clock.
 77
 78        clock-names:
 79          items:
 80            - const: pwm
 81            - const: pclk
 82
 83      required:
 84        - clocks
 85        - clock-names
 86
 87    else:
 88      properties:
 89        clocks:
 90          maxItems: 1
 91          description:
 92            Used both to derive the functional clock
 93            for the device and as the bus clock.
 94
 95      required:
 96        - clocks
 97
 98additionalProperties: false
 99
100examples:
101  - |
102    #include <dt-bindings/clock/rk3188-cru-common.h>
103    pwm0: pwm@20030000 {
104      compatible = "rockchip,rk2928-pwm";
105      reg = <0x20030000 0x10>;
106      clocks = <&cru PCLK_PWM01>;
107      #pwm-cells = <2>;
108    };