1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/sound/snps,designware-i2s.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: DesignWare I2S controller 8 9maintainers: 10 - Jose Abreu <joabreu@synopsys.com> 11 12properties: 13 compatible: 14 oneOf: 15 - items: 16 - const: canaan,k210-i2s 17 - const: snps,designware-i2s 18 - enum: 19 - snps,designware-i2s 20 21 reg: 22 maxItems: 1 23 24 interrupts: 25 description: | 26 The interrupt line number for the I2S controller. Add this 27 parameter if the I2S controller that you are using does not 28 support DMA. 29 maxItems: 1 30 31 clocks: 32 description: Sampling rate reference clock 33 maxItems: 1 34 35 clock-names: 36 const: i2sclk 37 38 resets: 39 items: 40 - description: Optional controller resets 41 42 dmas: 43 items: 44 - description: TX DMA Channel 45 - description: RX DMA Channel 46 minItems: 1 47 48 dma-names: 49 items: 50 - const: tx 51 - const: rx 52 minItems: 1 53 54allOf: 55 - $ref: dai-common.yaml# 56 - if: 57 properties: 58 compatible: 59 contains: 60 const: canaan,k210-i2s 61 then: 62 properties: 63 "#sound-dai-cells": 64 const: 1 65 else: 66 properties: 67 "#sound-dai-cells": 68 const: 0 69 70required: 71 - compatible 72 - reg 73 - clocks 74 - clock-names 75 76oneOf: 77 - required: 78 - dmas 79 - dma-names 80 - required: 81 - interrupts 82 83unevaluatedProperties: false 84 85examples: 86 - | 87 soc_i2s: i2s@7ff90000 { 88 compatible = "snps,designware-i2s"; 89 reg = <0x7ff90000 0x1000>; 90 clocks = <&scpi_i2sclk 0>; 91 clock-names = "i2sclk"; 92 #sound-dai-cells = <0>; 93 dmas = <&dma0 5>; 94 dma-names = "tx"; 95 }; 96