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| author | Yingkun Meng <mengyingkun@loongson.cn> | 2023-06-14 20:26:59 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-06-15 13:53:28 +0100 |
| commit | fadccca8f33959857948e279045a3757b5f21d55 (patch) | |
| tree | 3122d32adcb9bae532e61347697521eaaa60e040 | |
| parent | d24028606e7642261d33ad2a50aed940d35cfb66 (diff) | |
| download | linux-stable-fadccca8f33959857948e279045a3757b5f21d55.tar.gz linux-stable-fadccca8f33959857948e279045a3757b5f21d55.tar.bz2 linux-stable-fadccca8f33959857948e279045a3757b5f21d55.zip | |
ASoC: dt-bindings: Add support for Loongson audio card
The audio card uses loongson I2S controller present in
7axxx/2kxxx chips to transfer audio data.
On loongson platform, the chip has only one I2S controller.
Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Link: https://lore.kernel.org/r/20230614122659.3402788-1-mengyingkun@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml b/Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml new file mode 100644 index 000000000000..61e8babed402 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/loongson,ls-audio-card.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson 7axxx/2kxxx ASoC audio sound card driver + +maintainers: + - Yingkun Meng <mengyingkun@loongson.cn> + +description: + The binding describes the sound card present in loongson + 7axxx/2kxxx platform. The sound card is an ASoC component + which uses Loongson I2S controller to transfer the audio data. + +properties: + compatible: + const: loongson,ls-audio-card + + model: + $ref: /schemas/types.yaml#/definitions/string + description: User specified audio sound card name + + mclk-fs: + $ref: simple-card.yaml#/definitions/mclk-fs + + cpu: + description: Holds subnode which indicates cpu dai. + type: object + additionalProperties: false + properties: + sound-dai: + maxItems: 1 + required: + - sound-dai + + codec: + description: Holds subnode which indicates codec dai. + type: object + additionalProperties: false + properties: + sound-dai: + maxItems: 1 + required: + - sound-dai + +required: + - compatible + - model + - mclk-fs + - cpu + - codec + +additionalProperties: false + +examples: + - | + sound { + compatible = "loongson,ls-audio-card"; + model = "loongson-audio"; + mclk-fs = <512>; + + cpu { + sound-dai = <&i2s>; + }; + codec { + sound-dai = <&es8323>; + }; + }; |