[alsa-devel] [PATCH 8/8] ASoC: samsung, tm2-audio DT binding documentation update

[Krzysztof Kozlowski]

On Mon, Feb 5, 2018 at 4:44 PM, Sylwester Nawrocki
<s.nawrocki at samsung.com> wrote:
> This patch documents additional entries of the audio-codec and
> i2s-controller properties required for the HDMI audio support.
>
> Signed-off-by: Sylwester Nawrocki <s.nawrocki at samsung.com>
> ---
>  .../devicetree/bindings/sound/samsung,tm2-audio.txt        | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt b/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt
> index 94442e5673b3..f5ccc12ddc00 100644
> --- a/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt
> +++ b/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt
> @@ -4,9 +4,13 @@ Required properties:
>
>   - compatible           : "samsung,tm2-audio"
>   - model                : the user-visible name of this sound complex
> - - audio-codec          : the phandle of the wm5110 audio codec node,
> -                          as described in ../mfd/arizona.txt
> - - i2s-controller       : the phandle of the I2S controller
> + - audio-codec          : the first entry should be phandle of the wm5110 audio
> +                          codec node, as described in ../mfd/arizona.txt;
> +                          the second entry should be phandle of the HDMI

AFAIU, this property is still optional so the wording should be
different. Maybe just add "optional properties" paragraph?

Best regards,
Krzysztof

> +                          transmitter node
> + - i2s-controller       : the list of phandle and argument tuples pointing to
> +                          I2S controllers, the first entry should be I2S0 and
> +                          the second one I2S1
>   - audio-amplifier      : the phandle of the MAX98504 amplifier
>   - samsung,audio-routing : a list of the connections between audio components;
>                            each entry is a pair of strings, the first being the
> @@ -22,8 +26,8 @@ Example:
>
>  sound {
>         compatible = "samsung,tm2-audio";
> -       audio-codec = <&wm5110>;
> -       i2s-controller = <&i2s0>;
> +       audio-codec = <&wm5110>, <&hdmi>;
> +       i2s-controller = <&i2s0 0>, <&i2s1 0>;
>         audio-amplifier = <&max98504>;
>         mic-bias-gpios = <&gpr3 2 0>;
>         model = "wm5110";
> --
> 2.14.2
>