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ASoC: audio: fix audio drops issue in HPH for loud clips 

For louder clips with max volume, observe audio drops.
This is seen due to COMP1_B4_CTL setting is not updated
correctly. As per 8952 power grid, buck voltage is 1.8v
and compander register setting is varied based on this.
Update the setting to 1.8v and also ensure the compander
register bit is reset in power down sequence so that
non-compander usecases like ANC are not affected due
to this setting.

CRs-Fixed: 890042
Change-Id: Ib2bd74877d559c7f473b1c7a8a64054fb1f476bc
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam 2015-08-19 18:25:42 +05:30 committed by Gerrit - the friendly Code Review server
parent 9b4feaaedb
commit cba48d6f98
2 changed files with 5 additions and 1 deletions
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2
arch/arm/boot/dts/qcom/msm8952-ext-codec-cdp.dts
View File

@ -175,7 +175,7 @@
qcom,cdc-micbias1-ext-cap;
cdc-vdd-buck-supply = <&eldo2_8952>;
qcom,cdc-vdd-buck-voltage = <2150000 2150000>;
qcom,cdc-vdd-buck-voltage = <1800000 2150000>;
qcom,cdc-vdd-buck-current = <650000>;
cdc-vdd-tx-h-supply = <&pm8950_l5>;

4
sound/soc/codecs/wcd9330.c
View File

@ -1230,6 +1230,10 @@ static int tomtom_config_compander(struct snd_soc_dapm_widget *w,
/* Set gain source to register */
tomtom_config_gain_compander(codec, comp, false);
if (comp == COMPANDER_1)
snd_soc_update_bits(codec,
TOMTOM_A_CDC_COMP0_B4_CTL + (comp * 8),
0x80, 0x00);
break;
}
return 0;