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Date: Mon, 26 Feb 2024 16:30:00 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Alexandre Mergnat <amergnat@...libre.com>,
Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
<matthias.bgg@...il.com>, Lee Jones <lee@...nel.org>,
Flora Fu <flora.fu@...iatek.com>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, Sumit Semwal <sumit.semwal@...aro.org>,
Christian König <christian.koenig@....com>,
Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-media@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH 02/18] ASoC: dt-bindings: mediatek,mt8365-mt6357: Add
audio sound card document
Il 26/02/24 15:01, Alexandre Mergnat ha scritto:
> Add soundcard bindings for the MT8365 SoC with the MT6357 audio codec.
>
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.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.
> +
> +maintainers:
> + - Alexandre Mergnat <amergnat@...libre.com>
> +
> +description:
> + This binding describes the MT8365 sound card.
> +
> +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.
> + type: boolean
> +
> + mediatek,micbias0-microvolt:
> + description: |
description: Selects MIC Bias 0 output voltage
> + 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]
No, you don't say 0 1 2 3 4 to a property that says "microvolt", that's simply
wrong.
mediatek,micbias0-microvolt = <2100000>;
..so you want a binding that says
enum: [ 1700000, 1800000, this, that, 2700000]
> +
> + 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]
same here.
> +
> + mediatek,platform:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description: The phandle of MT8365 ASoC platform.
> +
> + pinctrl-names:
> + minItems: 1
> + items:
> + - const: aud_default
> + - const: aud_dmic
> + - const: aud_miso_off
> + - const: aud_miso_on
> + - const: aud_mosi_off
> + - const: aud_mosi_on
> +
> + vaud28-supply:
> + description:
> + 2.8 volt supply for the audio codec
> +
> +patternProperties:
> + "^dai-link-[0-9]+$":
> + 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
> +
> +required:
> + - compatible
> + - mediatek,platform
> + - pinctrl-names
> + - vaud28-supply
> +
> +examples:
> + - |
> + sound {
> + compatible = "mediatek,mt8365-mt6357";
> + mediatek,platform = <&afe>;
Please:
https://docs.kernel.org/devicetree/bindings/dts-coding-style.html
Regards,
Angelo
> + pinctrl-names = "aud_default",
> + "aud_dmic",
> + "aud_miso_off",
> + "aud_miso_on",
> + "aud_mosi_off",
> + "aud_mosi_on";
> + pinctrl-0 = <&aud_default_pins>;
> + pinctrl-1 = <&aud_dmic_pins>;
> + pinctrl-2 = <&aud_miso_off_pins>;
> + pinctrl-3 = <&aud_miso_on_pins>;
> + pinctrl-4 = <&aud_mosi_off_pins>;
> + pinctrl-5 = <&aud_mosi_on_pins>;
> + vaud28-supply = <&mt6357_vaud28_reg>;
> +
> + /* hdmi interface */
> + dai-link-0 {
> + sound-dai = <&afe>;
> + link-name = "2ND I2S BE";
> +
> + codec {
> + sound-dai = <&it66121hdmitx>;
> + };
> + };
> + };
>
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