ARM: shmobile: lager: Sound DMA support via SRC on DTS
authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tue, 4 Nov 2014 01:48:27 +0000 (17:48 -0800)
committerSimon Horman <horms+renesas@verge.net.au>
Fri, 5 Dec 2014 08:34:13 +0000 (17:34 +0900)
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 tring
SSI0 -> SRC2
SSI1 <- SRC3

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 7e78eb69a1cd79dfde9fef5256333cddb98b8f7a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
arch/arm/boot/dts/r8a7790-lager.dts

index ec8a780..67aecae 100644 (file)
 
        rcar_sound,dai {
                dai0 {
-                       playback = <&ssi0>;
-                       capture  = <&ssi1>;
+                       playback = <&ssi0 &src2>;
+                       capture  = <&ssi1 &src3>;
                };
        };
 };