rockchip-i2s.yaml

  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
  7title: Rockchip I2S controller
  8
  9description:
 10  The I2S bus (Inter-IC sound bus) is a serial link for digital
 11  audio data transfer between devices in the system.
 12
 13maintainers:
 14  - Heiko Stuebner <heiko@sntech.de>
 15
 16allOf:
 17  - $ref: dai-common.yaml#
 18
 19properties:
 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
112required:
113  - compatible
114  - reg
115  - interrupts
116  - clocks
117  - clock-names
118  - dmas
119  - dma-names
120  - "#sound-dai-cells"
121
122unevaluatedProperties: false
123
124examples:
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    };