| 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/sound/rockchip-i2s.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Rockchip I2S controller |
| 8 | |
| 9 | description: |
| 10 | The I2S bus (Inter-IC sound bus) is a serial link for digital |
| 11 | audio data transfer between devices in the system. |
| 12 | |
| 13 | maintainers: |
| 14 | - Heiko Stuebner <heiko@sntech.de> |
| 15 | |
| 16 | allOf: |
| 17 | - $ref: dai-common.yaml# |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | oneOf: |
| 22 | - const: rockchip,rk3066-i2s |
| 23 | - items: |
| 24 | - enum: |
| 25 | - rockchip,px30-i2s |
| 26 | - rockchip,rk1808-i2s |
| 27 | - rockchip,rk3036-i2s |
| 28 | - rockchip,rk3128-i2s |
| 29 | - rockchip,rk3188-i2s |
| 30 | - rockchip,rk3228-i2s |
| 31 | - rockchip,rk3288-i2s |
| 32 | - rockchip,rk3308-i2s |
| 33 | - rockchip,rk3328-i2s |
| 34 | - rockchip,rk3366-i2s |
| 35 | - rockchip,rk3368-i2s |
| 36 | - rockchip,rk3399-i2s |
| 37 | - rockchip,rk3588-i2s |
| 38 | - rockchip,rv1126-i2s |
| 39 | - const: rockchip,rk3066-i2s |
| 40 | |
| 41 | reg: |
| 42 | maxItems: 1 |
| 43 | |
| 44 | interrupts: |
| 45 | maxItems: 1 |
| 46 | |
| 47 | clocks: |
| 48 | items: |
| 49 | - description: clock for I2S controller |
| 50 | - description: clock for I2S BUS |
| 51 | |
| 52 | clock-names: |
| 53 | items: |
| 54 | - const: i2s_clk |
| 55 | - const: i2s_hclk |
| 56 | |
| 57 | dmas: |
| 58 | minItems: 1 |
| 59 | maxItems: 2 |
| 60 | |
| 61 | dma-names: |
| 62 | oneOf: |
| 63 | - const: rx |
| 64 | - items: |
| 65 | - const: tx |
| 66 | - const: rx |
| 67 | |
| 68 | pinctrl-names: |
| 69 | oneOf: |
| 70 | - const: default |
| 71 | - items: |
| 72 | - const: bclk_on |
| 73 | - const: bclk_off |
| 74 | |
| 75 | power-domains: |
| 76 | maxItems: 1 |
| 77 | |
| 78 | reset-names: |
| 79 | items: |
| 80 | - const: reset-m |
| 81 | - const: reset-h |
| 82 | |
| 83 | resets: |
| 84 | maxItems: 2 |
| 85 | |
| 86 | port: |
| 87 | $ref: audio-graph-port.yaml# |
| 88 | unevaluatedProperties: false |
| 89 | |
| 90 | rockchip,capture-channels: |
| 91 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 92 | default: 2 |
| 93 | description: |
| 94 | Max capture channels, if not set, 2 channels default. |
| 95 | |
| 96 | rockchip,playback-channels: |
| 97 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 98 | default: 8 |
| 99 | description: |
| 100 | Max playback channels, if not set, 8 channels default. |
| 101 | |
| 102 | rockchip,grf: |
| 103 | $ref: /schemas/types.yaml#/definitions/phandle |
| 104 | description: |
| 105 | The phandle of the syscon node for the GRF register. |
| 106 | Required property for controllers which support multi channel |
| 107 | playback/capture. |
| 108 | |
| 109 | "#sound-dai-cells": |
| 110 | const: 0 |
| 111 | |
| 112 | required: |
| 113 | - compatible |
| 114 | - reg |
| 115 | - interrupts |
| 116 | - clocks |
| 117 | - clock-names |
| 118 | - dmas |
| 119 | - dma-names |
| 120 | - "#sound-dai-cells" |
| 121 | |
| 122 | unevaluatedProperties: false |
| 123 | |
| 124 | examples: |
| 125 | - | |
| 126 | #include <dt-bindings/clock/rk3288-cru.h> |
| 127 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 128 | #include <dt-bindings/interrupt-controller/irq.h> |
| 129 | i2s@ff890000 { |
| 130 | compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s"; |
| 131 | reg = <0xff890000 0x10000>; |
| 132 | interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>; |
| 133 | clocks = <&cru SCLK_I2S0>, <&cru HCLK_I2S0>; |
| 134 | clock-names = "i2s_clk", "i2s_hclk"; |
| 135 | dmas = <&pdma1 0>, <&pdma1 1>; |
| 136 | dma-names = "tx", "rx"; |
| 137 | rockchip,capture-channels = <2>; |
| 138 | rockchip,playback-channels = <8>; |
| 139 | #sound-dai-cells = <0>; |
| 140 | }; |