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author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-03-07 08:30:06 +0300 |
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committer | Simon Horman <horms+renesas@verge.net.au> | 2017-03-07 09:51:11 +0300 |
commit | b5a8ffad0eb0c1e5e601253edac163b2da9e855d (patch) | |
tree | a818742afceff4a0f37e22197cfefb422515e44f /arch/arm64/boot/dts/renesas/r8a7795.dtsi | |
parent | 7d73a4da2681dc5d04e8ed9f4aa96c1deed2dbc5 (diff) | |
download | linux-b5a8ffad0eb0c1e5e601253edac163b2da9e855d.tar.xz |
arm64: dts: r8a7795: 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>
Diffstat (limited to 'arch/arm64/boot/dts/renesas/r8a7795.dtsi')
-rw-r--r-- | arch/arm64/boot/dts/renesas/r8a7795.dtsi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi index 14772bc02125..55c09f1b89c9 100644 --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi @@ -1075,11 +1075,11 @@ 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"; }; }; |