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ASoC: wcd937x: Fix headset record pop during SSR

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Pop is heard with special headset with silence record
during SSR. Resolve pop by allowing sufficient time for
wcd937x_reset post SSR and again initialize registers
post SSR.

Change-Id: I80e70a98a72b247dca878673a30651647b676659
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>
This commit is contained in:
Vatsal Bucha
2020-02-10 16:53:58 +05:30
committed by Gerrit - the friendly Code Review server
parent d155d7f509
commit 6b4f250e7b
1 changed files with 3 additions and 4 deletions
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7
asoc/codecs/wcd937x/wcd937x.c
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@@ -1596,14 +1596,13 @@ static int wcd937x_event_notify(struct notifier_block *block,
break;
case BOLERO_WCD_EVT_SSR_UP:
wcd937x_reset(wcd937x->dev);
/* allow reset to take effect */
usleep_range(10000, 10010);
wcd937x_get_logical_addr(wcd937x->tx_swr_dev);
wcd937x_get_logical_addr(wcd937x->rx_swr_dev);
wcd937x_init_reg(component);
regcache_mark_dirty(wcd937x->regmap);
regcache_sync(wcd937x->regmap);
/* Enable surge protection */
snd_soc_component_update_bits(component,
WCD937X_HPH_SURGE_HPHLR_SURGE_EN,
0xFF, 0xD9);
/* Initialize MBHC module */
mbhc = &wcd937x->mbhc->wcd_mbhc;
ret = wcd937x_mbhc_post_ssr_init(wcd937x->mbhc, component);