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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/cirrus,ep9301-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cirrus EP93xx I2S Controller
description: |
The I2S controller is used to stream serial audio data between the external
I2S CODECs’, ADCs/DACs, and the ARM Core. The controller supports I2S, Left-
and Right-Justified DSP formats.
maintainers:
- Alexander Sverdlin <alexander.sverdlin@gmail.com>
allOf:
- $ref: dai-common.yaml#
properties:
compatible:
const: cirrus,ep9301-i2s
'#sound-dai-cells':
const: 0
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
minItems: 3
maxItems: 3
clock-names:
items:
- const: mclk
- const: sclk
- const: lrclk
dmas:
items:
- description: out DMA channel
- description: in DMA channel
dma-names:
items:
- const: tx
- const: rx
port:
$ref: audio-graph-port.yaml#
unevaluatedProperties: false
required:
- compatible
- '#sound-dai-cells'
- reg
- clocks
- clock-names
additionalProperties: false
examples:
- |
i2s: i2s@80820000 {
compatible = "cirrus,ep9301-i2s";
#sound-dai-cells = <0>;
reg = <0x80820000 0x100>;
interrupt-parent = <&vic1>;
interrupts = <28>;
clocks = <&syscon 29>,
<&syscon 30>,
<&syscon 31>;
clock-names = "mclk", "sclk", "lrclk";
dmas = <&dma0 0 1>, <&dma0 0 2>;
dma-names = "tx", "rx";
};
...
|
