| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/pwm/pwm-amlogic.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Amlogic PWM |
| 8 | |
| 9 | maintainers: |
| 10 | - Heiner Kallweit <hkallweit1@gmail.com> |
| 11 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 12 | properties: |
| 13 | compatible: |
| 14 | oneOf: |
| 15 | - enum: |
| 16 | - amlogic,meson8b-pwm |
| 17 | - amlogic,meson-gxbb-pwm |
| 18 | - amlogic,meson-gxbb-ao-pwm |
| 19 | - amlogic,meson-axg-ee-pwm |
| 20 | - amlogic,meson-axg-ao-pwm |
| 21 | - amlogic,meson-g12a-ee-pwm |
| 22 | - amlogic,meson-g12a-ao-pwm-ab |
| 23 | - amlogic,meson-g12a-ao-pwm-cd |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 24 | deprecated: true |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 25 | - items: |
| 26 | - const: amlogic,meson-gx-pwm |
| 27 | - const: amlogic,meson-gxbb-pwm |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 28 | deprecated: true |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 29 | - items: |
| 30 | - const: amlogic,meson-gx-ao-pwm |
| 31 | - const: amlogic,meson-gxbb-ao-pwm |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 32 | deprecated: true |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 33 | - items: |
| 34 | - const: amlogic,meson8-pwm |
| 35 | - const: amlogic,meson8b-pwm |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 36 | deprecated: true |
| 37 | - enum: |
| 38 | - amlogic,meson8-pwm-v2 |
| 39 | - amlogic,meson-s4-pwm |
| 40 | - items: |
| 41 | - enum: |
| 42 | - amlogic,meson8b-pwm-v2 |
| 43 | - amlogic,meson-gxbb-pwm-v2 |
| 44 | - amlogic,meson-axg-pwm-v2 |
| 45 | - amlogic,meson-g12-pwm-v2 |
| 46 | - const: amlogic,meson8-pwm-v2 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 47 | |
| 48 | reg: |
| 49 | maxItems: 1 |
| 50 | |
| 51 | clocks: |
| 52 | minItems: 1 |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 53 | maxItems: 4 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 54 | |
| 55 | clock-names: |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 56 | minItems: 1 |
| 57 | maxItems: 2 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 58 | |
| 59 | "#pwm-cells": |
| 60 | const: 3 |
| 61 | |
| 62 | required: |
| 63 | - compatible |
| 64 | - reg |
| 65 | |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 66 | allOf: |
| 67 | - $ref: pwm.yaml# |
| 68 | |
| 69 | - if: |
| 70 | properties: |
| 71 | compatible: |
| 72 | contains: |
| 73 | enum: |
| 74 | - amlogic,meson8-pwm |
| 75 | - amlogic,meson8b-pwm |
| 76 | - amlogic,meson-gxbb-pwm |
| 77 | - amlogic,meson-gxbb-ao-pwm |
| 78 | - amlogic,meson-axg-ee-pwm |
| 79 | - amlogic,meson-axg-ao-pwm |
| 80 | - amlogic,meson-g12a-ee-pwm |
| 81 | - amlogic,meson-g12a-ao-pwm-ab |
| 82 | - amlogic,meson-g12a-ao-pwm-cd |
| 83 | then: |
| 84 | # Obsolete historic bindings tied to the driver implementation |
| 85 | # The clocks provided here are meant to be matched with the input |
| 86 | # known (hard-coded) in the driver and used to select pwm clock |
| 87 | # source. Currently, the linux driver ignores this. |
| 88 | # This is kept to maintain ABI backward compatibility. |
| 89 | properties: |
| 90 | clocks: |
| 91 | maxItems: 2 |
| 92 | clock-names: |
| 93 | oneOf: |
| 94 | - items: |
| 95 | - enum: [clkin0, clkin1] |
| 96 | - items: |
| 97 | - const: clkin0 |
| 98 | - const: clkin1 |
| 99 | |
| 100 | # Newer binding where clock describe the actual clock inputs of the pwm |
| 101 | # block. These are necessary but some inputs may be grounded. |
| 102 | - if: |
| 103 | properties: |
| 104 | compatible: |
| 105 | contains: |
| 106 | enum: |
| 107 | - amlogic,meson8-pwm-v2 |
| 108 | then: |
| 109 | properties: |
| 110 | clocks: |
| 111 | minItems: 1 |
| 112 | items: |
| 113 | - description: input clock 0 of the pwm block |
| 114 | - description: input clock 1 of the pwm block |
| 115 | - description: input clock 2 of the pwm block |
| 116 | - description: input clock 3 of the pwm block |
| 117 | clock-names: false |
| 118 | required: |
| 119 | - clocks |
| 120 | |
| 121 | # Newer IP block take a single input per channel, instead of 4 inputs |
| 122 | # for both channels |
| 123 | - if: |
| 124 | properties: |
| 125 | compatible: |
| 126 | contains: |
| 127 | enum: |
| 128 | - amlogic,meson-s4-pwm |
| 129 | then: |
| 130 | properties: |
| 131 | clocks: |
| 132 | items: |
| 133 | - description: input clock of PWM channel A |
| 134 | - description: input clock of PWM channel B |
| 135 | clock-names: false |
| 136 | required: |
| 137 | - clocks |
| 138 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 139 | additionalProperties: false |
| 140 | |
| 141 | examples: |
| 142 | - | |
| 143 | pwm@8550 { |
| 144 | compatible = "amlogic,meson-gxbb-pwm"; |
| 145 | reg = <0x08550 0x10>; |
| 146 | clocks = <&xtal>, <&xtal>; |
| 147 | clock-names = "clkin0", "clkin1"; |
| 148 | #pwm-cells = <3>; |
| 149 | }; |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 150 | - | |
| 151 | pwm@2000 { |
| 152 | compatible = "amlogic,meson8-pwm-v2"; |
| 153 | reg = <0x1000 0x10>; |
| 154 | clocks = <&xtal>, <0>, <&fdiv4>, <&fdiv5>; |
| 155 | #pwm-cells = <3>; |
| 156 | }; |
| 157 | - | |
| 158 | pwm@1000 { |
| 159 | compatible = "amlogic,meson-s4-pwm"; |
| 160 | reg = <0x1000 0x10>; |
| 161 | clocks = <&pwm_src_a>, <&pwm_src_b>; |
| 162 | #pwm-cells = <3>; |
| 163 | }; |