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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2017-03-07 08:29:21 +0300
committerSimon Horman <horms+renesas@verge.net.au>2017-03-10 12:23:28 +0300
commitd49db72b567d6273f41f045b0c146837d3e50f8d (patch)
tree4cb77b6bc235b9191e923714b6e138616901d277 /arch/arm/boot/dts/r8a7791.dtsi
parent133a3f1a19c99218a39e9d3e91e9e5442fa0f191 (diff)
downloadlinux-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>
Diffstat (limited to 'arch/arm/boot/dts/r8a7791.dtsi')
-rw-r--r--arch/arm/boot/dts/r8a7791.dtsi4
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";
};
};