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Commit 25175a9c authored by Vatsal Bucha's avatar Vatsal Bucha
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ASoC: Add delay before impedance detection for wcd937x and wcd938x 



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

Change-Id: I515fa0ca66562c91cb4aacb87cb7394122aa1c10
Signed-off-by: default avatarVatsal Bucha <vbucha@codeaurora.org>
parent 01a86d28

asoc/codecs/wcd937x/wcd937x-mbhc.c

+2 −0
Original line number Diff line number Diff line
@@ -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];

asoc/codecs/wcd938x/wcd938x-mbhc.c

+2 −0
Original line number Diff line number Diff line
@@ -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];