Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-26 14:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: da7219: Improve the relability of AAD IRQ process

Browse Source 
- Configure the default gound switch delay time before enabling IRQ
  to avoid the unexpected delay time is set up
- Apply DA7219 AAD own work queue to handle AAD events
- Replace msleep with queue_delayed_work to have better relability

This commit improves the control of ground switches in AAD IRQ

Signed-off-by: David Rau <David.Rau.opensource@dm.renesas.com>
Link: https://lore.kernel.org/r/20230413024134.8612-1-David.Rau.opensource@dm.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
David Rau 2023-04-13 02:41:34 +00:00 committed by Mark Brown
parent 27ff688a40
commit 2c17277893
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 31 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
sound/soc/codecs/da7219-aad.c
View File

@ -342,36 +342,17 @@ static void da7219_aad_hptest_work(struct work_struct *work)
static void da7219_aad_jack_det_work(struct work_struct *work)
{
struct da7219_aad_priv *da7219_aad =
container_of(work, struct da7219_aad_priv, jack_det_work);
container_of(work, struct da7219_aad_priv, jack_det_work.work);
struct snd_soc_component *component = da7219_aad->component;
u8 srm_st;
mutex_lock(&da7219_aad->jack_det_mutex);
srm_st = snd_soc_component_read(component, DA7219_PLL_SRM_STS) & DA7219_PLL_SRM_STS_MCLK;
msleep(da7219_aad->gnd_switch_delay * ((srm_st == 0x0) ? 2 : 1) - 4);
/* Enable ground switch */
snd_soc_component_update_bits(component, 0xFB, 0x01, 0x01);
mutex_unlock(&da7219_aad->jack_det_mutex);
}
/*
* IRQ
*/
static irqreturn_t da7219_aad_pre_irq_thread(int irq, void *data)
{
struct da7219_aad_priv *da7219_aad = data;
if (!da7219_aad->jack_inserted)
schedule_work(&da7219_aad->jack_det_work);
return IRQ_WAKE_THREAD;
}
static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
{
struct da7219_aad_priv *da7219_aad = data;
@ -392,6 +373,18 @@ static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
/* Read status register for jack insertion & type status */
statusa = snd_soc_component_read(component, DA7219_ACCDET_STATUS_A);
if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_INSERTED_MASK) {
u8 srm_st;
int delay = 0;
srm_st = snd_soc_component_read(component,
DA7219_PLL_SRM_STS) & DA7219_PLL_SRM_STS_MCLK;
delay = (da7219_aad->gnd_switch_delay * ((srm_st == 0x0) ? 2 : 1) - 2);
queue_delayed_work(da7219_aad->aad_wq,
&da7219_aad->jack_det_work,
msecs_to_jiffies(delay));
}
/* Clear events */
regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
events, DA7219_AAD_IRQ_REG_MAX);
@ -400,9 +393,6 @@ static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
statusa);
if (!da7219_aad->jack_inserted)
cancel_work_sync(&da7219_aad->jack_det_work);
if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
/* Jack Insertion */
if (events[DA7219_AAD_IRQ_REG_A] &
@ -430,9 +420,9 @@ static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
if (statusa & DA7219_JACK_TYPE_STS_MASK) {
report |= SND_JACK_HEADSET;
mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
schedule_work(&da7219_aad->btn_det_work);
queue_work(da7219_aad->aad_wq, &da7219_aad->btn_det_work);
} else {
schedule_work(&da7219_aad->hptest_work);
queue_work(da7219_aad->aad_wq, &da7219_aad->hptest_work);
}
}
@ -465,6 +455,7 @@ static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
da7219_aad->jack_inserted = false;
/* Cancel any pending work */
cancel_delayed_work_sync(&da7219_aad->jack_det_work);
cancel_work_sync(&da7219_aad->btn_det_work);
cancel_work_sync(&da7219_aad->hptest_work);
@ -964,13 +955,19 @@ int da7219_aad_init(struct snd_soc_component *component)
snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
DA7219_BUTTON_CONFIG_MASK, 0);
da7219_aad_handle_gnd_switch_time(component);
da7219_aad->aad_wq = create_singlethread_workqueue("da7219-aad");
if (!da7219_aad->aad_wq) {
dev_err(component->dev, "Failed to create aad workqueue\n");
return -ENOMEM;
}
INIT_DELAYED_WORK(&da7219_aad->jack_det_work, da7219_aad_jack_det_work);
INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
INIT_WORK(&da7219_aad->jack_det_work, da7219_aad_jack_det_work);
mutex_init(&da7219_aad->jack_det_mutex);
ret = request_threaded_irq(da7219_aad->irq, da7219_aad_pre_irq_thread,
ret = request_threaded_irq(da7219_aad->irq, NULL,
da7219_aad_irq_thread,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"da7219-aad", da7219_aad);
@ -984,8 +981,6 @@ int da7219_aad_init(struct snd_soc_component *component)
regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
&mask, DA7219_AAD_IRQ_REG_MAX);
da7219_aad_handle_gnd_switch_time(component);
return 0;
}
@ -1002,8 +997,10 @@ void da7219_aad_exit(struct snd_soc_component *component)
free_irq(da7219_aad->irq, da7219_aad);
cancel_delayed_work_sync(&da7219_aad->jack_det_work);
cancel_work_sync(&da7219_aad->btn_det_work);
cancel_work_sync(&da7219_aad->hptest_work);
destroy_workqueue(da7219_aad->aad_wq);
}
/*
@ -1031,4 +1028,5 @@ int da7219_aad_probe(struct i2c_client *i2c)
MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
MODULE_AUTHOR("David Rau <David.Rau.opensource@dm.renesas.com>");
MODULE_LICENSE("GPL");

5
sound/soc/codecs/da7219-aad.h
View File

@ -197,9 +197,8 @@ struct da7219_aad_priv {
struct work_struct btn_det_work;
struct work_struct hptest_work;
struct work_struct jack_det_work;
struct mutex jack_det_mutex;
struct delayed_work jack_det_work;
struct workqueue_struct *aad_wq;
struct snd_soc_jack *jack;
bool micbias_resume_enable;