linux-kernel - Re: [PATCH v3 01/18] ASoC: dt-bindings: mediatek,mt8365-afe: Add audio afe document

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Date: Tue, 9 Apr 2024 17:46:51 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
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>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.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>,
 Rob Herring <robh@...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 v3 01/18] ASoC: dt-bindings: mediatek,mt8365-afe: Add
 audio afe document

On 09/04/2024 15:41, Alexandre Mergnat wrote:
> Add MT8365 audio front-end bindings
> 
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> ---

> +properties:
> +  compatible:
> +    const: mediatek,mt8365-afe-pcm
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  clocks:
> +    items:
> +      - description: 26M clock
> +      - description: mux for audio clock
> +      - description: audio i2s0 mck
> +      - description: audio i2s1 mck
> +      - description: audio i2s2 mck
> +      - description: audio i2s3 mck
> +      - description: engen 1 clock
> +      - description: engen 2 clock
> +      - description: audio 1 clock
> +      - description: audio 2 clock
> +      - description: mux for i2s0
> +      - description: mux for i2s1
> +      - description: mux for i2s2
> +      - description: mux for i2s3
> +
> +  clock-names:
> +    items:
> +      - const: top_clk26m_clk
> +      - const: top_audio_sel
> +      - const: audio_i2s0_m
> +      - const: audio_i2s1_m
> +      - const: audio_i2s2_m
> +      - const: audio_i2s3_m
> +      - const: engen1
> +      - const: engen2
> +      - const: aud1
> +      - const: aud2
> +      - const: i2s0_m_sel
> +      - const: i2s1_m_sel
> +      - const: i2s2_m_sel
> +      - const: i2s3_m_sel
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  mediatek,dmic-mode:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      Indicates how many data pins are used to transmit two channels of PDM
> +      signal. 1 means two wires, 0 means one wire. Default value is 0.
> +    enum:
> +      - 0 # one wire
> +      - 1 # two wires
> +
> +  mediatek,topckgen:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: The phandle of the mediatek topckgen controller

Nothing improved, so again, so something which is not obvious. What is
it used for? Why AFE needs topckgen for example?

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - interrupts
> +  - power-domains
> +  - mediatek,topckgen
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mediatek,mt8365-clk.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/power/mediatek,mt8365-power.h>
> +
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        afe@...20000 {

Did you implement the comment or decided to keep afe?

BTW, whatever "consistency" you have in mind, it does not really matter
that much for that example. And for sure do not add incorrect code
intentionally just to fix it in next patch.



Best regards,
Krzysztof