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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-03-07 08:29:21 +0300 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2017-03-10 12:23:28 +0300 |
| commit | d49db72b567d6273f41f045b0c146837d3e50f8d (patch) | |
| tree | 4cb77b6bc235b9191e923714b6e138616901d277 | |
| parent | 133a3f1a19c99218a39e9d3e91e9e5442fa0f191 (diff) | |
| download | linux-d49db72b567d6273f41f045b0c146837d3e50f8d.tar.xz | |
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>
| -rw-r--r-- | arch/arm/boot/dts/r8a7791.dtsi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi index 525377df16ee..b319ef4d57b0 100644 --- a/arch/arm/boot/dts/r8a7791.dtsi +++ b/arch/arm/boot/dts/r8a7791.dtsi @@ -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"; }; }; |