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asoc: initialize L/R/C gain for both mono/stereo playback

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When there's a dynamic channel change from mono to stereo,
volume burst is observed because center channel gain for
stereo is not initialized. Initialize center channel gain
for both mono and stereo playback.

CRs-Fixed: 2095081
Change-Id: I02254b5696a17e2792ea26a2265ab01326f5cf9e
Signed-off-by: Yidong Huang <yidongh@codeaurora.org>
This commit is contained in:
yidongh 2017-09-05 17:57:55 +08:00 • committed by Gerrit - the friendly Code Review server
parent 8f7ccc2e6f
commit 98526effb3
1 changed files with 3 additions and 6 deletions
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9
asoc/msm-compress-q6-v2.c
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@ -388,12 +388,9 @@ static int msm_compr_set_volume(struct snd_compr_stream *cstream,
} else {
gain_list[0] = volume_l;
gain_list[1] = volume_r;
/* force sending FR/FL/FC volume for mono */
if (prtd->num_channels == 1) {
gain_list[2] = volume_l;
num_channels = 3;
use_default = true;
}
gain_list[2] = volume_l;
num_channels = 3;
use_default = true;
rc = q6asm_set_multich_gain(prtd->audio_client, num_channels,
gain_list, chmap, use_default);
}