1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/sound/atmel,sama5d2-i2s.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: Atmel I2S controller 9 10maintainers: 11 - Nicolas Ferre <nicolas.ferre@microchip.com> 12 - Alexandre Belloni <alexandre.belloni@bootlin.com> 13 - Claudiu Beznea <claudiu.beznea@microchip.com> 14 15description: 16 Atmel I2S (Inter-IC Sound Controller) bus is the standard 17 interface for connecting audio devices, such as audio codecs. 18 19properties: 20 compatible: 21 const: atmel,sama5d2-i2s 22 23 reg: 24 maxItems: 1 25 26 interrupts: 27 maxItems: 1 28 29 clocks: 30 items: 31 - description: Peripheral clock 32 - description: Generated clock (Optional) 33 - description: I2S mux clock (Optional). Set 34 with gclk when Master Mode is required. 35 minItems: 1 36 37 clock-names: 38 items: 39 - const: pclk 40 - const: gclk 41 - const: muxclk 42 minItems: 1 43 44 dmas: 45 items: 46 - description: TX DMA Channel 47 - description: RX DMA Channel 48 49 dma-names: 50 items: 51 - const: tx 52 - const: rx 53 54required: 55 - compatible 56 - reg 57 - interrupts 58 - dmas 59 - dma-names 60 - clocks 61 - clock-names 62 63additionalProperties: false 64 65examples: 66 - | 67 #include <dt-bindings/dma/at91.h> 68 #include <dt-bindings/interrupt-controller/arm-gic.h> 69 70 i2s@f8050000 { 71 compatible = "atmel,sama5d2-i2s"; 72 reg = <0xf8050000 0x300>; 73 interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>; 74 dmas = <&dma0 75 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | 76 AT91_XDMAC_DT_PERID(31))>, 77 <&dma0 78 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | 79 AT91_XDMAC_DT_PERID(32))>; 80 dma-names = "tx", "rx"; 81 clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>; 82 clock-names = "pclk", "gclk", "muxclk"; 83 pinctrl-names = "default"; 84 pinctrl-0 = <&pinctrl_i2s0_default>; 85 }; 86