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ASoC: wcd937x: Fix CnP when compander is disabled

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Pop noise is observed at teardown when compander
is disabled. Allow proper delay after PA disable
to resolve the pop.

Change-Id: I15efa08f28bc1dd32e39b3ca1311b1e417199fd3
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>
This commit is contained in:
Vatsal Bucha 2018-12-27 14:48:08 +05:30 • committed by Meng Wang
commit 1ca5d397ba
1 changed files with 28 additions and 2 deletions
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30
asoc/codecs/wcd937x/wcd937x.c
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@ -694,9 +694,22 @@ static int wcd937x_codec_enable_hphr_pa(struct snd_soc_dapm_widget *w,
blocking_notifier_call_chain(&wcd937x->mbhc->notifier,
WCD_EVENT_PRE_HPHR_PA_OFF,
&wcd937x->mbhc->wcd_mbhc);
set_bit(HPH_PA_DELAY, &wcd937x->status_mask);
break;
case SND_SOC_DAPM_POST_PMD:
usleep_range(7000, 7010);
/*
* 7ms sleep is required after PA is disabled as per
* HW requirement. If compander is disabled, then
* 20ms delay is required.
*/
if (test_bit(HPH_PA_DELAY, &wcd937x->status_mask)) {
if (!wcd937x->comp2_enable)
usleep_range(20000, 20100);
else
usleep_range(7000, 7100);
clear_bit(HPH_PA_DELAY, &wcd937x->status_mask);
}
snd_soc_component_update_bits(component,
WCD937X_DIGITAL_PDM_WD_CTL1, 0x17, 0x00);
blocking_notifier_call_chain(&wcd937x->mbhc->notifier,
@ -776,9 +789,22 @@ static int wcd937x_codec_enable_hphl_pa(struct snd_soc_dapm_widget *w,
blocking_notifier_call_chain(&wcd937x->mbhc->notifier,
WCD_EVENT_PRE_HPHL_PA_OFF,
&wcd937x->mbhc->wcd_mbhc);
set_bit(HPH_PA_DELAY, &wcd937x->status_mask);
break;
case SND_SOC_DAPM_POST_PMD:
usleep_range(7000, 7010);
/*
* 7ms sleep is required after PA is disabled as per
* HW requirement. If compander is disabled, then
* 20ms delay is required.
*/
if (test_bit(HPH_PA_DELAY, &wcd937x->status_mask)) {
if (!wcd937x->comp1_enable)
usleep_range(20000, 20100);
else
usleep_range(7000, 7100);
clear_bit(HPH_PA_DELAY, &wcd937x->status_mask);
}
snd_soc_component_update_bits(component,
WCD937X_DIGITAL_PDM_WD_CTL0, 0x17, 0x00);
blocking_notifier_call_chain(&wcd937x->mbhc->notifier,