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asoc: wcd937x: stop mbhc during ssr down

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Stop mbhc operations during ssr down to cancel
any pending detection sequences.

Change-Id: I6aa8c61c2cc74fc08adf57c58673acaa753ac322
Signed-off-by: Ramprasad Katkam <katkam@codeaurora.org>
This commit is contained in:
Ramprasad Katkam 2018-12-12 19:24:33 +05:30 • committed by Meng Wang
commit a2958a6205
3 changed files with 37 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

29
asoc/codecs/wcd937x/wcd937x-mbhc.c
View file

@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
/* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/init.h>
@ -974,6 +974,31 @@ void wcd937x_mbhc_hs_detect_exit(struct snd_soc_component *component)
}
EXPORT_SYMBOL(wcd937x_mbhc_hs_detect_exit);
/*
* wcd937x_mbhc_ssr_down: stop mbhc during
* wcd937x subsystem restart
* @mbhc: pointer to wcd937x_mbhc structure
* @component: handle to snd_soc_component *
*/
void wcd937x_mbhc_ssr_down(struct wcd937x_mbhc *mbhc,
struct snd_soc_component *component)
{
struct wcd_mbhc *wcd_mbhc = NULL;
if (!mbhc || !component)
return;
wcd_mbhc = &mbhc->wcd_mbhc;
if (wcd_mbhc == NULL) {
dev_err(component->dev, "%s: wcd_mbhc is NULL\n", __func__);
return;
}
wcd937x_mbhc_hs_detect_exit(component);
wcd_mbhc_deinit(wcd_mbhc);
}
EXPORT_SYMBOL(wcd937x_mbhc_ssr_down);
/*
* wcd937x_mbhc_post_ssr_init: initialize mbhc for
* wcd937x post subsystem restart
@ -997,8 +1022,6 @@ int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
return -EINVAL;
}
wcd937x_mbhc_hs_detect_exit(component);
wcd_mbhc_deinit(wcd_mbhc);
snd_soc_component_update_bits(component, WCD937X_ANA_MBHC_MECH,
0x20, 0x20);
ret = wcd_mbhc_init(wcd_mbhc, component, &mbhc_cb, &intr_ids,

10
asoc/codecs/wcd937x/wcd937x-mbhc.h
View file

@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
/* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
*/
#ifndef __WCD937X_MBHC_H__
#define __WCD937X_MBHC_H__
@ -21,6 +21,8 @@ extern int wcd937x_mbhc_hs_detect(struct snd_soc_component *component,
extern void wcd937x_mbhc_deinit(struct snd_soc_component *component);
extern int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
struct snd_soc_component *component);
extern void wcd937x_mbhc_ssr_down(struct wcd937x_mbhc *mbhc,
struct snd_soc_component *component);
extern int wcd937x_mbhc_get_impedance(struct wcd937x_mbhc *wcd937x_mbhc,
uint32_t *zl, uint32_t *zr);
#else
@ -47,7 +49,11 @@ static inline int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
{
return 0;
}
static inline void wcd937x_mbhc_ssr_down(struct wcd937x_mbhc *mbhc,
struct snd_soc_component *component)
{
return 0;
}
static inline int wcd937x_mbhc_get_impedance(struct wcd937x_mbhc *wcd937x_mbhc,
uint32_t *zl, uint32_t *zr)
{

4
asoc/codecs/wcd937x/wcd937x.c
View file

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
@ -1422,6 +1422,8 @@ static int wcd937x_event_notify(struct notifier_block *block,
0x80, 0x00);
break;
case BOLERO_WCD_EVT_SSR_DOWN:
mbhc = &wcd937x->mbhc->wcd_mbhc;
wcd937x_mbhc_ssr_down(wcd937x->mbhc, component);
wcd937x_reset_low(wcd937x->dev);
break;
case BOLERO_WCD_EVT_SSR_UP: