summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2014-11-11 04:36:47 +0000
committerSimon Horman <horms+renesas@verge.net.au>2014-11-19 09:22:11 +0900
commitbd2e4a62ef68b3c5a8542026533bd87c631c544d (patch)
treea94ca7bff209f19c05da25d051954cff43ca9388
parent3f58c54bd027b42099d59e5ea0521f7b39d82e15 (diff)
ARM: shmobile: lager: add Volume Ramp usage on comment
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
-rw-r--r--arch/arm/boot/dts/r8a7790-lager.dts9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index 2f91740505f..a2351587dfe 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/;