# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/amlogic,gx-sound-card.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Amlogic GX sound card
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maintainers:
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- Jerome Brunet <jbrunet@baylibre.com>
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properties:
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compatible:
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items:
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- const: amlogic,gx-sound-card
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audio-aux-devs:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description: list of auxiliary devices
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audio-routing:
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$ref: /schemas/types.yaml#/definitions/non-unique-string-array
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minItems: 2
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description: |-
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A list of the connections between audio components. Each entry is a
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pair of strings, the first being the connection's sink, the second
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being the connection's source.
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audio-widgets:
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$ref: /schemas/types.yaml#/definitions/non-unique-string-array
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minItems: 2
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description: |-
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A list off component DAPM widget. Each entry is a pair of strings,
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the first being the widget type, the second being the widget name
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model:
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$ref: /schemas/types.yaml#/definitions/string
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description: User specified audio sound card name
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patternProperties:
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"^dai-link-[0-9]+$":
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type: object
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description: |-
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dai-link child nodes:
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Container for dai-link level properties and the CODEC sub-nodes.
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There should be at least one (and probably more) subnode of this type
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properties:
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dai-format:
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$ref: /schemas/types.yaml#/definitions/string
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enum: [ i2s, left-j, dsp_a ]
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mclk-fs:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |-
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Multiplication factor between the frame rate and master clock
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rate
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sound-dai:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description: phandle of the CPU DAI
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patternProperties:
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"^codec(-[0-9]+)?$":
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type: object
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description: |-
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Codecs:
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dai-link representing backend links should have at least one subnode.
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One subnode for each codec of the dai-link. dai-link representing
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frontend links have no codec, therefore have no subnodes
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properties:
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sound-dai:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description: phandle of the codec DAI
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required:
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- sound-dai
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required:
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- sound-dai
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required:
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- model
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- dai-link-0
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additionalProperties: false
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examples:
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- |
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sound {
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compatible = "amlogic,gx-sound-card";
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model = "GXL-ACME-S905X-FOO";
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audio-aux-devs = <&>;
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audio-routing = "I2S ENCODER I2S IN", "I2S FIFO Playback";
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dai-link-0 {
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sound-dai = <&i2s_fifo>;
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};
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dai-link-1 {
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sound-dai = <&i2s_encoder>;
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dai-format = "i2s";
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mclk-fs = <256>;
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codec-0 {
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sound-dai = <&codec0>;
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};
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codec-1 {
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sound-dai = <&codec1>;
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};
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};
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};
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