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Commit a9675d1a authored by Vatsal Bucha's avatar Vatsal Bucha Committed by Gerrit - the friendly Code Review server
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ASoC: wcd937x: Fix audio distortion issue during headset record 



Audio is distorted during first 3 secs on headset record
while doing device switch from dmic to headset mic.
Disable BCS before slow insertion detection and enable it
afterwards to resolve the issue.

Change-Id: Icb18a0b5decb0c0bd9959bce7cced70a27566d41
Signed-off-by: default avatarVatsal Bucha <vbucha@codeaurora.org>
parent 2e421b57

asoc/codecs/wcd937x/internal.h

+4 −0
Original line number Diff line number Diff line
@@ -133,6 +133,7 @@ enum { 
	WCD_BOLERO_EVT_RX_MUTE = 1,	/* for RX mute/unmute */

	WCD_BOLERO_EVT_IMPED_TRUE,	/* for imped true */

	WCD_BOLERO_EVT_IMPED_FALSE,	/* for imped false */

	WCD_BOLERO_EVT_BCS_CLK_OFF,

};



enum {
@@ -164,6 +165,9 @@ enum { 
	WCD937X_NUM_IRQS,

};



extern void wcd937x_disable_bcs_before_slow_insert(

				struct snd_soc_component *component,

				bool bcs_disable);

extern struct wcd937x_mbhc *wcd937x_soc_get_mbhc(

				struct snd_soc_component *component);

extern int wcd937x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,

asoc/codecs/wcd937x/wcd937x-mbhc.c

+10 −0
Original line number Diff line number Diff line
@@ -810,6 +810,15 @@ static void wcd937x_mbhc_moisture_polling_ctrl(struct wcd_mbhc *mbhc, 
			0x04, (enable << 2));

}



static void wcd937x_mbhc_bcs_enable(struct wcd_mbhc *mbhc,

						  bool bcs_enable)

{

	if (bcs_enable)

		wcd937x_disable_bcs_before_slow_insert(mbhc->component, false);

	else

		wcd937x_disable_bcs_before_slow_insert(mbhc->component, true);

}



static const struct wcd_mbhc_cb mbhc_cb = {

	.request_irq = wcd937x_mbhc_request_irq,

	.irq_control = wcd937x_mbhc_irq_control,
@@ -834,6 +843,7 @@ static const struct wcd_mbhc_cb mbhc_cb = { 
	.mbhc_get_moisture_status = wcd937x_mbhc_get_moisture_status,

	.mbhc_moisture_polling_ctrl = wcd937x_mbhc_moisture_polling_ctrl,

	.mbhc_moisture_detect_en = wcd937x_mbhc_moisture_detect_en,

	.bcs_enable = wcd937x_mbhc_bcs_enable,

};



static int wcd937x_get_hph_type(struct snd_kcontrol *kcontrol,

asoc/codecs/wcd937x/wcd937x.c

+15 −0
Original line number Diff line number Diff line
@@ -1517,6 +1517,21 @@ int wcd937x_micbias_control(struct snd_soc_component *component, 
}

EXPORT_SYMBOL(wcd937x_micbias_control);



void wcd937x_disable_bcs_before_slow_insert(struct snd_soc_component *component,

					    bool bcs_disable)

{

	struct wcd937x_priv *wcd937x = snd_soc_component_get_drvdata(component);



	if (wcd937x->update_wcd_event) {

		if (bcs_disable)

			wcd937x->update_wcd_event(wcd937x->handle,

						WCD_BOLERO_EVT_BCS_CLK_OFF, 0);

		else

			wcd937x->update_wcd_event(wcd937x->handle,

						WCD_BOLERO_EVT_BCS_CLK_OFF, 1);

	}

}



static int wcd937x_get_logical_addr(struct swr_device *swr_dev)

{

	int ret = 0;