From: Kuninori Morimoto Date: Tue, 11 Nov 2014 04:36:47 +0000 (+0000) Subject: ARM: shmobile: lager: add Volume Ramp usage on comment X-Git-Tag: firefly_0821_release~176^2~2766^2~17^2~5 X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=bd2e4a62ef68b3c5a8542026533bd87c631c544d;p=firefly-linux-kernel-4.4.55.git ARM: shmobile: lager: add Volume Ramp usage on comment Signed-off-by: Kuninori Morimoto Signed-off-by: Simon Horman --- diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts index 2f91740505fd..a2351587dfe4 100644 --- a/arch/arm/boot/dts/r8a7790-lager.dts +++ b/arch/arm/boot/dts/r8a7790-lager.dts @@ -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/;