On 26/02/2024 15:01, Alexandre Mergnat wrote:

Add soundcard bindings for the MT8365 SoC with the MT6357 audio codec.

Signed-off-by: Alexandre Mergnat amergnat@baylibre.com

.../bindings/sound/mediatek,mt8365-mt6357.yaml | 127 +++++++++++++++++++++ 1 file changed, 127 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml new file mode 100644 index 000000000000..f469611ec6b6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8365-mt6357.yaml @@ -0,0 +1,127 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/mediatek,mt8365-mt6357.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml#

+title: Mediatek MT8365 sound card with MT6357 sound codec.

Drop full stop. This is title.

+maintainers:

• • Alexandre Mergnat amergnat@baylibre.com

+description:

• This binding describes the MT8365 sound card.

Say something useful. There is no need to say that binding is a binding describing something. Or just drop it if this is obvious.

+properties:

• compatible:
• const: mediatek,mt8365-mt6357
• mediatek,hp-pull-down:
• description:

•  Earphone driver positive output stage short to the
  

•  audio reference ground.
  

•  Default value is false.
  

That's obvious, isn't it? Drop.

• type: boolean
• mediatek,micbias0-microvolt:
• description: |

•  Selects MIC Bias 0 output voltage.
  

•  [1.7v, 1.8v, 1.9v, 2.0v, 2.1v, 2.5v, 2.6v, 2.7v]
  

• enum: [0, 1, 2, 3, 4, 5, 6, 7]

0 is 0V, not 1.7! That's total mess. You use here microvolts. Look at property name.

• mediatek,micbias1-microvolt:
• description: |

•  Selects MIC Bias 1 output voltage.
  

•  [1.7v, 1.8v, 1.9v, 2.0v, 2.1v, 2.5v, 2.6v, 2.7v]
  

• enum: [0, 1, 2, 3, 4, 5, 6, 7]
• mediatek,platform:
• $ref: /schemas/types.yaml#/definitions/phandle
• description: The phandle of MT8365 ASoC platform.
• pinctrl-names:
• minItems: 1
• items:

•  - const: aud_default
  

Drop redundant parts. aud looks like block name.

•  - const: aud_dmic
  

•  - const: aud_miso_off
  

•  - const: aud_miso_on
  

•  - const: aud_mosi_off
  

•  - const: aud_mosi_on
  

• vaud28-supply:
• description:

•  2.8 volt supply for the audio codec
  

+patternProperties:

• "^dai-link-[0-9]+$":
• type: object
• description:

•  Container for dai-link level properties and CODEC sub-nodes.
  

• properties:

•  codec:
  

•    type: object
  

•    description: Holds subnode which indicates codec dai.
  

•    properties:
  

•      sound-dai:
  

•        maxItems: 1
  

•        description: phandle of the codec DAI
  

•    additionalProperties: false
  

•  link-name:
  

•    description:
  

•      This property corresponds to the name of the BE dai-link to which
  

•      we are going to update parameters in this node.
  

•    items:
  

•      const: 2ND I2S BE
  

•  sound-dai:
  

•    maxItems: 1
  

•    description: phandle of the CPU DAI
  

• additionalProperties: false
• required:

•  - link-name
  

•  - sound-dai
  

+additionalProperties: false

This goes after required: block. See example schema.

+required:

• • compatible
• • mediatek,platform
• • pinctrl-names
• • vaud28-supply

Best regards, Krzysztof