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ASoC: Add delay before impedance detection for wcd937x and wcd938x

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1ms delay is needed for impedance detection after disabling hph
surge. Add delay for wcd937x and wcd938x.

Change-Id: I515fa0ca66562c91cb4aacb87cb7394122aa1c10
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>
This commit is contained in:
Vatsal Bucha 2019-07-24 12:48:18 +05:30
commit 25175a9c42
2 changed files with 4 additions and 0 deletions
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2
asoc/codecs/wcd937x/wcd937x-mbhc.c
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@ -552,6 +552,8 @@ static void wcd937x_wcd_mbhc_calc_impedance(struct wcd_mbhc *mbhc, uint32_t *zl,
*/
regmap_update_bits(wcd937x->regmap,
WCD937X_HPH_SURGE_HPHLR_SURGE_EN, 0xC0, 0x00);
/* 1ms delay needed after disable surge protection */
usleep_range(1000, 1010);
/* First get impedance on Left */
d1 = d1_a[1];

2
asoc/codecs/wcd938x/wcd938x-mbhc.c
View file

@ -552,6 +552,8 @@ static void wcd938x_wcd_mbhc_calc_impedance(struct wcd_mbhc *mbhc, uint32_t *zl,
*/
regmap_update_bits(wcd938x->regmap,
WCD938X_HPH_SURGE_HPHLR_SURGE_EN, 0xC0, 0x00);
/* 1ms delay needed after disable surge protection */
usleep_range(1000, 1010);
/* First get impedance on Left */
d1 = d1_a[1];