Re: [PATCH 8/9] ARM: dts: iwg22d-sodimm: Sound DMA support via SRC on DTS

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On Wed, Dec 20, 2017 at 08:02:04PM +0000, Biju Das wrote:
> DMA transfer to/from SRC
> 
>      DMA      DMApp
> [MEM] -> [SRC] -> [SSIU] -> [SSI]
> 
>      DMA      DMApp
> [MEM] <- [SRC] <- [SSIU] <- [SSI]
> 
> Current sound driver is supporting SSI/SRC random connection.
> So, this patch is trying
> SSI3 -> SRC3
> SSI4 <- SRC4

I am curious to know why the selection here differs from that
present in iwg20d-q7-common. Is it an arbitrary decision?

Likewise for other uses of ssi*, src* and dvc* in this patchset.

> 
> Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
> Reviewed-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
> index 0f880c1..2cac57c 100644
> --- a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
> +++ b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
> @@ -183,8 +183,8 @@
>  
>  	rcar_sound,dai {
>  		dai0 {
> -			playback = <&ssi3>;
> -			capture = <&ssi4>;
> +			playback = <&ssi3 &src3>;
> +			capture = <&ssi4 &src4>;
>  		};
>  	};
>  };
> -- 
> 1.9.1
> 



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