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ARM: dts: r8a7791: Tidyup Audio-DMAC channel for DVC 

Current	Audio-DMAC is assigned "rx" as Audio-DMAC0, "tx" as Audio-DMAC1.
Thus, DVC "tx" should be assigned as Audio-DMAC1, instead of Audio-DMAC0.

Because of this, current platform board (using SRC/DVC/SSI)
Playback/Capture both will use same Audio-DMAC0
(but it depends on audio data path).

First note is that this "rx" and "tx" are from each IP point,
it doesn't mean Playback/Capture.
Second note is that Audio DMAC assigned on DT is only for
Audio-DMAC, Audio-DMAC-peri-peri has no entry.

=> Audio-DMAC
-> Audio-DMAC-peri-peri
-- HW connection

Playback case

	[Mem] => [SRC]--[DVC] -> [SSI]--[Codec]
	      rx ~~~~~~~~~~~~
Capture

	[Mem] <= [DVC]--[SRC] <- [SSI]--[Codec]
	      tx ~~~~~~~~~~~~

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
hifive-unleashed-5.1
Kuninori Morimoto 2017-03-07 05:29:21 +00:00 committed by Simon Horman
parent 133a3f1a19
commit d49db72b56
1 changed files with 2 additions and 2 deletions
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4
arch/arm/boot/dts/r8a7791.dtsi
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@ -1779,11 +1779,11 @@
rcar_sound,dvc {
dvc0: dvc-0 {
dmas = <&audma0 0xbc>;
dmas = <&audma1 0xbc>;
dma-names = "tx";
};
dvc1: dvc-1 {
dmas = <&audma0 0xbe>;
dmas = <&audma1 0xbe>;
dma-names = "tx";
};
};