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ARM: shmobile: lager: add Volume Ramp usage on comment

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Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Kuninori Morimoto 2014-11-11 04:36:47 +00:00 committed by Simon Horman
parent 3f58c54bd0
commit bd2e4a62ef
1 changed files with 9 additions and 0 deletions
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9
arch/arm/boot/dts/r8a7790-lager.dts
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@ -26,6 +26,15 @@
*
* 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/;