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Date:   Mon, 17 Feb 2020 17:49:17 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Mylène Josserand 
        <mylene.josserand@...e-electrons.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>, stable@...nel.org
Subject: Re: [RFC PATCH 01/34] ASoC: dt-bindings: Add a separate compatible
 for the A64 codec

On Mon, Feb 17, 2020 at 2:42 PM Samuel Holland <samuel@...lland.org> wrote:
>
> The digital codec in the A64 is largely compatible with the one in the
> A33, with two changes:
>  - It is missing some muxing options for AIF1/2/3 (not currently
>    supported by the driver)

Is this at the pinctrl level or mixer level? If it's at the pinctrl level
then it's out of the scope of this driver/binding. It could very well have
those signals, just that they aren't routed outside the SoC.


ChenYu

>  - It does not have the LRCK inversion issue that A33 has
>
> To fix the Left/Right channel inversion on the A64 caused by the A33
> LRCK fix, we need to introduce a new compatible for the codec in the
> A64.
>
> Cc: stable@...nel.org
> Fixes: ec4a95409d5c ("arm64: dts: allwinner: a64: add nodes necessary for analog sound support")
> Signed-off-by: Samuel Holland <samuel@...lland.org>
> ---
>  .../devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml  | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
> index 55d28268d2f4..7c66409f13ea 100644
> --- a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
> +++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
> @@ -15,7 +15,9 @@ properties:
>      const: 0
>
>    compatible:
> -    const: allwinner,sun8i-a33-codec
> +    enum:
> +      - allwinner,sun8i-a33-codec
> +      - allwinner,sun50i-a64-codec
>
>    reg:
>      maxItems: 1
> --
> 2.24.1
>

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