rockchip-i2s.yaml (2894B)
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 16properties: 17 compatible: 18 oneOf: 19 - const: rockchip,rk3066-i2s 20 - items: 21 - enum: 22 - rockchip,px30-i2s 23 - rockchip,rk1808-i2s 24 - rockchip,rk3036-i2s 25 - rockchip,rk3128-i2s 26 - rockchip,rk3188-i2s 27 - rockchip,rk3228-i2s 28 - rockchip,rk3288-i2s 29 - rockchip,rk3308-i2s 30 - rockchip,rk3328-i2s 31 - rockchip,rk3366-i2s 32 - rockchip,rk3368-i2s 33 - rockchip,rk3399-i2s 34 - rockchip,rv1126-i2s 35 - const: rockchip,rk3066-i2s 36 37 reg: 38 maxItems: 1 39 40 interrupts: 41 maxItems: 1 42 43 clocks: 44 items: 45 - description: clock for I2S controller 46 - description: clock for I2S BUS 47 48 clock-names: 49 items: 50 - const: i2s_clk 51 - const: i2s_hclk 52 53 dmas: 54 minItems: 1 55 maxItems: 2 56 57 dma-names: 58 oneOf: 59 - const: rx 60 - items: 61 - const: tx 62 - const: rx 63 64 power-domains: 65 maxItems: 1 66 67 reset-names: 68 items: 69 - const: reset-m 70 - const: reset-h 71 72 resets: 73 maxItems: 2 74 75 rockchip,capture-channels: 76 $ref: /schemas/types.yaml#/definitions/uint32 77 default: 2 78 description: 79 Max capture channels, if not set, 2 channels default. 80 81 rockchip,playback-channels: 82 $ref: /schemas/types.yaml#/definitions/uint32 83 default: 8 84 description: 85 Max playback channels, if not set, 8 channels default. 86 87 rockchip,grf: 88 $ref: /schemas/types.yaml#/definitions/phandle 89 description: 90 The phandle of the syscon node for the GRF register. 91 Required property for controllers which support multi channel 92 playback/capture. 93 94 "#sound-dai-cells": 95 const: 0 96 97required: 98 - compatible 99 - reg 100 - interrupts 101 - clocks 102 - clock-names 103 - dmas 104 - dma-names 105 - "#sound-dai-cells" 106 107additionalProperties: false 108 109examples: 110 - | 111 #include <dt-bindings/clock/rk3288-cru.h> 112 #include <dt-bindings/interrupt-controller/arm-gic.h> 113 #include <dt-bindings/interrupt-controller/irq.h> 114 i2s@ff890000 { 115 compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s"; 116 reg = <0xff890000 0x10000>; 117 interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>; 118 clocks = <&cru SCLK_I2S0>, <&cru HCLK_I2S0>; 119 clock-names = "i2s_clk", "i2s_hclk"; 120 dmas = <&pdma1 0>, <&pdma1 1>; 121 dma-names = "tx", "rx"; 122 rockchip,capture-channels = <2>; 123 rockchip,playback-channels = <8>; 124 #sound-dai-cells = <0>; 125 };