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asoc: lpass: add pm stay awake to avoid suspend

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add pm stay awake before the queue delayed work to avoid the when apps suspend.

Change-Id: Iad4d55d509e800b352ac7cb8afb0824a89c80c40
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
This commit is contained in:
Prasad Kumpatla
2022-06-09 01:12:33 +05:30
parent 49b2306433
commit 32f0f8d96d
2 changed files with 73 additions and 1 deletions
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39
asoc/codecs/lpass-cdc/lpass-cdc-va-macro.c
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@@ -138,6 +138,7 @@ struct lpass_cdc_va_macro_priv {
struct clk *lpass_audio_hw_vote;
struct mutex mclk_lock;
struct mutex swr_clk_lock;
struct mutex wlock;
struct snd_soc_component *component;
struct hpf_work va_hpf_work[LPASS_CDC_VA_MACRO_NUM_DECIMATORS];
struct va_mute_work va_mute_dwork[LPASS_CDC_VA_MACRO_NUM_DECIMATORS];
@@ -179,8 +180,33 @@ struct lpass_cdc_va_macro_priv {
bool pre_dev_up;
bool swr_dmic_enable;
bool use_lpi_mixer_control;
int wlock_holders;
};
static int lpass_cdc_va_macro_wake_enable(struct lpass_cdc_va_macro_priv *va_priv,
bool wake_enable)
{
int ret = 0;
mutex_lock(&va_priv->wlock);
if (wake_enable) {
if (va_priv->wlock_holders++ == 0) {
dev_dbg(va_priv->dev, "%s: pm wake\n", __func__);
pm_stay_awake(va_priv->dev);
}
} else {
if (--va_priv->wlock_holders == 0) {
dev_dbg(va_priv->dev, "%s: pm release\n", __func__);
pm_relax(va_priv->dev);
}
if (va_priv->wlock_holders < 0)
va_priv->wlock_holders = 0;
}
mutex_unlock(&va_priv->wlock);
return ret;
}
static bool lpass_cdc_va_macro_get_data(struct snd_soc_component *component,
struct device **va_dev,
struct lpass_cdc_va_macro_priv **va_priv,
@@ -949,6 +975,7 @@ static void lpass_cdc_va_macro_tx_hpf_corner_freq_callback(
snd_soc_component_update_bits(component, hpf_gate_reg,
0x02, 0x00);
}
lpass_cdc_va_macro_wake_enable(va_priv, 0);
}
static void lpass_cdc_va_macro_mute_update_callback(struct work_struct *work)
@@ -971,6 +998,7 @@ static void lpass_cdc_va_macro_mute_update_callback(struct work_struct *work)
snd_soc_component_update_bits(component, tx_vol_ctl_reg, 0x10, 0x00);
dev_dbg(va_priv->dev, "%s: decimator %u unmute\n",
__func__, decimator);
lpass_cdc_va_macro_wake_enable(va_priv, 0);
}
static int lpass_cdc_va_macro_put_dec_enum(struct snd_kcontrol *kcontrol,
@@ -1297,14 +1325,17 @@ static int lpass_cdc_va_macro_enable_dec(struct snd_soc_dapm_widget *w,
*/
usleep_range(6000, 6010);
/* schedule work queue to Remove Mute */
lpass_cdc_va_macro_wake_enable(va_priv, 1);
queue_delayed_work(system_freezable_wq,
&va_priv->va_mute_dwork[decimator].dwork,
msecs_to_jiffies(va_tx_unmute_delay));
if (va_priv->va_hpf_work[decimator].hpf_cut_off_freq !=
CF_MIN_3DB_150HZ)
CF_MIN_3DB_150HZ) {
lpass_cdc_va_macro_wake_enable(va_priv, 1);
queue_delayed_work(system_freezable_wq,
&va_priv->va_hpf_work[decimator].dwork,
msecs_to_jiffies(hpf_delay));
}
/* apply gain after decimator is enabled */
snd_soc_component_write(component, tx_gain_ctl_reg,
snd_soc_component_read(component, tx_gain_ctl_reg));
@@ -1339,8 +1370,10 @@ static int lpass_cdc_va_macro_enable_dec(struct snd_soc_dapm_widget *w,
0x03, 0x01);
}
}
lpass_cdc_va_macro_wake_enable(va_priv, 0);
cancel_delayed_work_sync(
&va_priv->va_mute_dwork[decimator].dwork);
lpass_cdc_va_macro_wake_enable(va_priv, 0);
break;
case SND_SOC_DAPM_POST_PMD:
/* Disable TX CLK */
@@ -2519,6 +2552,7 @@ static int lpass_cdc_va_macro_probe(struct platform_device *pdev)
}
va_priv->default_clk_id = default_clk_id;
va_priv->current_clk_id = TX_CORE_CLK;
va_priv->wlock_holders = 0;
va_priv->use_lpi_mixer_control = false;
if (of_find_property(pdev->dev.of_node, "use-lpi-control", NULL)) {
@@ -2544,6 +2578,7 @@ static int lpass_cdc_va_macro_probe(struct platform_device *pdev)
va_priv->pre_dev_up = true;
mutex_init(&va_priv->mclk_lock);
mutex_init(&va_priv->wlock);
dev_set_drvdata(&pdev->dev, va_priv);
lpass_cdc_va_macro_init_ops(&ops, va_io_base);
ops.clk_id_req = va_priv->default_clk_id;
@@ -2564,6 +2599,7 @@ static int lpass_cdc_va_macro_probe(struct platform_device *pdev)
reg_macro_fail:
mutex_destroy(&va_priv->mclk_lock);
mutex_destroy(&va_priv->wlock);
if (is_used_va_swr_gpio)
mutex_destroy(&va_priv->swr_clk_lock);
return ret;
@@ -2591,6 +2627,7 @@ static int lpass_cdc_va_macro_remove(struct platform_device *pdev)
pm_runtime_set_suspended(&pdev->dev);
lpass_cdc_unregister_macro(&pdev->dev, VA_MACRO);
mutex_destroy(&va_priv->mclk_lock);
mutex_destroy(&va_priv->wlock);
if (va_priv->is_used_va_swr_gpio)
mutex_destroy(&va_priv->swr_clk_lock);
return 0;