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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/atmel,sama5d2-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Atmel I2S controller
maintainers:
- Nicolas Ferre <nicolas.ferre@microchip.com>
- Alexandre Belloni <alexandre.belloni@bootlin.com>
- Claudiu Beznea <claudiu.beznea@microchip.com>
description:
Atmel I2S (Inter-IC Sound Controller) bus is the standard
interface for connecting audio devices, such as audio codecs.
properties:
compatible:
const: atmel,sama5d2-i2s
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: Peripheral clock
- description: Generated clock (Optional)
- description: I2S mux clock (Optional). Set
with gclk when Master Mode is required.
minItems: 1
clock-names:
items:
- const: pclk
- const: gclk
- const: muxclk
minItems: 1
dmas:
items:
- description: TX DMA Channel
- description: RX DMA Channel
dma-names:
items:
- const: tx
- const: rx
required:
- compatible
- reg
- interrupts
- dmas
- dma-names
- clocks
- clock-names
additionalProperties: false
examples:
- |
#include <dt-bindings/dma/at91.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
i2s@f8050000 {
compatible = "atmel,sama5d2-i2s";
reg = <0xf8050000 0x300>;
interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>;
dmas = <&dma0
(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
AT91_XDMAC_DT_PERID(31))>,
<&dma0
(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
AT91_XDMAC_DT_PERID(32))>;
dma-names = "tx", "rx";
clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>;
clock-names = "pclk", "gclk", "muxclk";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2s0_default>;
};
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