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ASoC: wcd934x: Fix AANC click and pop in voice call

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Currently ANC output is connected to speaker path before PA
is enabled. This is causing click sound during voice call
when adaptive ANC is enabled. Fix this issue by connecting ANC
output to speaker path after PA is enabled.

Change-Id: I2103773a17e7d9ee5acb3f21dc955e2da493b3b4
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
This commit is contained in:
Vidyakumar Athota 2016-11-04 14:57:03 -07:00 • committed by Gerrit - the friendly Code Review server
parent 85d7e134cc
commit 9a52c21164
1 changed files with 33 additions and 2 deletions
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35
sound/soc/codecs/wcd934x/wcd934x.c
View file

@ -546,6 +546,16 @@ struct tx_mute_work {
struct delayed_work dwork;
};
#define WCD934X_SPK_ANC_EN_DELAY_MS 350
static int spk_anc_en_delay = WCD934X_SPK_ANC_EN_DELAY_MS;
module_param(spk_anc_en_delay, int, S_IRUGO | S_IWUSR | S_IWGRP);
MODULE_PARM_DESC(spk_anc_en_delay, "delay to enable anc in speaker path");
struct spk_anc_work {
struct tavil_priv *tavil;
struct delayed_work dwork;
};
struct hpf_work {
struct tavil_priv *tavil;
u8 decimator;
@ -610,6 +620,7 @@ struct tavil_priv {
struct work_struct tavil_add_child_devices_work;
struct hpf_work tx_hpf_work[WCD934X_NUM_DECIMATORS];
struct tx_mute_work tx_mute_dwork[WCD934X_NUM_DECIMATORS];
struct spk_anc_work spk_anc_dwork;
unsigned int vi_feed_value;
@ -1775,6 +1786,21 @@ static int tavil_codec_enable_rx_bias(struct snd_soc_dapm_widget *w,
return 0;
}
static void tavil_spk_anc_update_callback(struct work_struct *work)
{
struct spk_anc_work *spk_anc_dwork;
struct tavil_priv *tavil;
struct delayed_work *delayed_work;
struct snd_soc_codec *codec;
delayed_work = to_delayed_work(work);
spk_anc_dwork = container_of(delayed_work, struct spk_anc_work, dwork);
tavil = spk_anc_dwork->tavil;
codec = tavil->codec;
snd_soc_update_bits(codec, WCD934X_CDC_RX7_RX_PATH_CFG0, 0x10, 0x10);
}
static int tavil_codec_enable_spkr_anc(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
@ -1792,10 +1818,11 @@ static int tavil_codec_enable_spkr_anc(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
ret = tavil_codec_enable_anc(w, kcontrol, event);
snd_soc_update_bits(codec, WCD934X_CDC_RX7_RX_PATH_CFG0,
0x10, 0x10);
schedule_delayed_work(&tavil->spk_anc_dwork.dwork,
msecs_to_jiffies(spk_anc_en_delay));
break;
case SND_SOC_DAPM_POST_PMD:
cancel_delayed_work_sync(&tavil->spk_anc_dwork.dwork);
snd_soc_update_bits(codec, WCD934X_CDC_RX7_RX_PATH_CFG0,
0x10, 0x00);
ret = tavil_codec_enable_anc(w, kcontrol, event);
@ -8837,6 +8864,10 @@ static int tavil_soc_codec_probe(struct snd_soc_codec *codec)
tavil_tx_mute_update_callback);
}
tavil->spk_anc_dwork.tavil = tavil;
INIT_DELAYED_WORK(&tavil->spk_anc_dwork.dwork,
tavil_spk_anc_update_callback);
tavil_mclk2_reg_defaults(tavil);
/* DSD initialization */