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Message-Id: <20230413024134.8612-1-David.Rau.opensource@dm.renesas.com>
Date: Thu, 13 Apr 2023 02:41:34 +0000
From: David Rau <David.Rau.opensource@...renesas.com>
To: broonie@...nel.org
Cc: support.opensource@...semi.com, lgirdwood@...il.com,
perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
linux-kernel@...r.kernel.org, bailideng@...gle.com,
groeck@...gle.com, David Rau <David.Rau.opensource@...renesas.com>
Subject: [PATCH] ASoC: da7219: Improve the relability of AAD IRQ process
- 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@...renesas.com>
---
sound/soc/codecs/da7219-aad.c | 60 +++++++++++++++++------------------
sound/soc/codecs/da7219-aad.h | 5 ++-
2 files changed, 31 insertions(+), 34 deletions(-)
diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c
index e3d398b8f54e..993a0d00bc48 100644
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -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@...semi.com>");
+MODULE_AUTHOR("David Rau <David.Rau.opensource@...renesas.com>");
MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/da7219-aad.h b/sound/soc/codecs/da7219-aad.h
index be87ee47edde..fbfbf3e67918 100644
--- a/sound/soc/codecs/da7219-aad.h
+++ b/sound/soc/codecs/da7219-aad.h
@@ -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;
--
2.17.1
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