Re: [PATCH v2 03/11] ARM: tegra: Set the sound card model that alsaucm expects

[Stephen Warren]

On 01/15/2015 09:12 AM, Tomeu Vizoso wrote:
> Patches are on its way to add a config file to alsaucm for the Nyan
> boards. Use the same card ID that alsaucm will expect.
>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
> ---
>   arch/arm/boot/dts/tegra124-nyan-big.dts | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/tegra124-nyan-big.dts b/arch/arm/boot/dts/tegra124-nyan-big.dts
> index 43e58a4..9a9cffe 100644
> --- a/arch/arm/boot/dts/tegra124-nyan-big.dts
> +++ b/arch/arm/boot/dts/tegra124-nyan-big.dts
> @@ -1976,9 +1976,9 @@
>   	};
>
>   	sound {
> -		compatible = "nvidia,tegra-audio-max98090-nyan-big",
> +		compatible = "nvidia,tegra-audio-max98090-nyan",
>   			     "nvidia,tegra-audio-max98090";

If all the boards that are derived from Nyan truly have identical audio 
HW (or at least any differences can be described by this binding), then 
it seems fine to add "nvidia,tegra-audio-max98090-nyan" to the 
compatible value.

However, I don't see a reason to remove the board-specific compatible 
value "nvidia,tegra-audio-max98090-nyan-big"; we should always include 
all the values that are relevant.

> -		nvidia,model = "Acer Chromebook 13";
> +		nvidia,model = "GoogleNyan";

Why not just name the UCM config file after the ASoC card name that's 
already in use? Perhaps it's not likely to be unique enough though:-(
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