diff options
| author | Simon Horman <horms+renesas@verge.net.au> | 2015-12-02 16:59:44 +0900 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2016-01-29 09:28:43 +0900 |
| commit | ae79f66db7e75dfe696df7f392f4db4980117306 (patch) | |
| tree | 9bf7dafd7babd5df91404dc09c0a2de63b47a3f7 /arch/arm/boot | |
| parent | d2cde3b6103678a4f3d2079af744937dfc9c4104 (diff) | |
ARM: dts: gose: enable sound DMA support via DVC in device tree
Enable DMA transfer using DVC in r8a7793/gose device tree.
DMA DMApp
[MEM] -> [SRC] -> [DVC] -> [SSIU] -> [SSI]
DMA DMApp
[MEM] <- [DVC] <- [SRC] <- [SSIU] <- [SSI]
Based on similar work for the r8a7791/koelsch by Kuninori Morimoto.
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/r8a7793-gose.dts | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/r8a7793-gose.dts b/arch/arm/boot/dts/r8a7793-gose.dts index 17c87fe0944f..2fa052036dbc 100644 --- a/arch/arm/boot/dts/r8a7793-gose.dts +++ b/arch/arm/boot/dts/r8a7793-gose.dts @@ -18,7 +18,24 @@ * This command is required when Playback/Capture * * amixer set "LINEOUT Mixer DACL" on + * 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 "r8a7793.dtsi" #include <dt-bindings/gpio/gpio.h> @@ -401,8 +418,8 @@ rcar_sound,dai { dai0 { - playback = <&ssi0 &src2>; - capture = <&ssi1 &src3>; + playback = <&ssi0 &src2 &dvc0>; + capture = <&ssi1 &src3 &dvc1>; }; }; }; |