| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | |
| 7 | title: Rockchip PWM controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Heiko Stuebner <heiko@sntech.de> |
| 11 | |
| 12 | properties: |
| 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,rk3568-pwm |
| 34 | - rockchip,rk3588-pwm |
| 35 | - rockchip,rv1126-pwm |
| 36 | - const: rockchip,rk3328-pwm |
| 37 | |
| 38 | reg: |
| 39 | maxItems: 1 |
| 40 | |
| 41 | clocks: |
| 42 | minItems: 1 |
| 43 | maxItems: 2 |
| 44 | |
| 45 | clock-names: |
| 46 | maxItems: 2 |
| 47 | |
| 48 | "#pwm-cells": |
| 49 | enum: [2, 3] |
| 50 | description: |
| 51 | Must be 2 (rk2928) or 3 (rk3288 and later). |
| 52 | See pwm.yaml for a description of the cell format. |
| 53 | |
| 54 | required: |
| 55 | - compatible |
| 56 | - reg |
| 57 | |
| 58 | allOf: |
| 59 | - $ref: pwm.yaml# |
| 60 | |
| 61 | - if: |
| 62 | properties: |
| 63 | compatible: |
| 64 | contains: |
| 65 | enum: |
| 66 | - rockchip,rk3328-pwm |
| 67 | - rockchip,rv1108-pwm |
| 68 | |
| 69 | then: |
| 70 | properties: |
| 71 | clocks: |
| 72 | items: |
| 73 | - description: Used to derive the functional clock for the device. |
| 74 | - description: Used as the APB bus clock. |
| 75 | |
| 76 | clock-names: |
| 77 | items: |
| 78 | - const: pwm |
| 79 | - const: pclk |
| 80 | |
| 81 | required: |
| 82 | - clocks |
| 83 | - clock-names |
| 84 | |
| 85 | else: |
| 86 | properties: |
| 87 | clocks: |
| 88 | maxItems: 1 |
| 89 | description: |
| 90 | Used both to derive the functional clock |
| 91 | for the device and as the bus clock. |
| 92 | |
| 93 | required: |
| 94 | - clocks |
| 95 | |
| 96 | additionalProperties: false |
| 97 | |
| 98 | examples: |
| 99 | - | |
| 100 | #include <dt-bindings/clock/rk3188-cru-common.h> |
| 101 | pwm0: pwm@20030000 { |
| 102 | compatible = "rockchip,rk2928-pwm"; |
| 103 | reg = <0x20030000 0x10>; |
| 104 | clocks = <&cru PCLK_PWM01>; |
| 105 | #pwm-cells = <2>; |
| 106 | }; |