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| author | Biju Das <biju.das@bp.renesas.com> | 2017-12-20 23:02:05 +0300 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2017-12-21 14:24:49 +0300 |
| commit | 6f41d5e0872e4b55a5352ff79ab2452bff306753 (patch) | |
| tree | c5d9436bfe1f008dbe4d107f0209b0ead0ae1005 /arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts | |
| parent | 5ce5faa6fcf8b643ab91f48b972fd850f33d8f57 (diff) | |
| download | linux-6f41d5e0872e4b55a5352ff79ab2452bff306753.tar.xz | |
ARM: dts: iwg22d-sodimm: Sound DMA support via DVC on DTS
DMA transfer uses DVC
DMA DMApp
[MEM] -> [SRC] -> [DVC] -> [SSIU] -> [SSI]
DMA DMApp
[MEM] <- [DVC] <- [SRC] <- [SSIU] <- [SSI]
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts')
| -rw-r--r-- | arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts index 2cac57c7c44d..a4058f4cfbcd 100644 --- a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts +++ b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts @@ -8,6 +8,29 @@ * kind, whether express or implied. */ +/* + * SSI-SGTL5000 + * + * This command is required when Playback/Capture + * + * amixer set "DVC Out" 100% + * amixer set "DVC In" 100% + * + * You can use Mute + * + * amixer set "DVC Out Mute" on + * amixer set "DVC In Mute" on + * + * You can use Volume Ramp + * + * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" + * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" + * amixer set "DVC Out Ramp" on + * aplay xxx.wav & + * amixer set "DVC Out" 80% // Volume Down + * amixer set "DVC Out" 100% // Volume Up + */ + /dts-v1/; #include "r8a7745-iwg22m.dtsi" @@ -183,8 +206,8 @@ rcar_sound,dai { dai0 { - playback = <&ssi3 &src3>; - capture = <&ssi4 &src4>; + playback = <&ssi3 &src3 &dvc0>; + capture = <&ssi4 &src4 &dvc1>; }; }; }; |