From: Hans de Goede <hdegoede@redhat.com>
To: Lee Jones <lee.jones@linaro.org>,
Cezary Rojewski <cezary.rojewski@intel.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Liam Girdwood <liam.r.girdwood@linux.intel.com>,
Jie Yang <yang.jie@linux.intel.com>,
Mark Brown <broonie@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>,
patches@opensource.cirrus.com, linux-kernel@vger.kernel.org,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Charles Keepax <ckeepax@opensource.cirrus.com>,
alsa-devel@alsa-project.org
Subject: [PATCH v4 02/13] extcon: arizona: Fix some issues when HPDET IRQ fires after the jack has been unplugged
Date: Sat, 23 Jan 2021 13:13:02 +0100 [thread overview]
Message-ID: <20210123121313.79530-3-hdegoede@redhat.com> (raw)
In-Reply-To: <20210123121313.79530-1-hdegoede@redhat.com>
When the jack is partially inserted and then removed again it may be
removed while the hpdet code is running. In this case the following
may happen:
1. The "JACKDET rise" or ""JACKDET fall" IRQ triggers
2. arizona_jackdet runs and takes info->lock
3. The "HPDET" IRQ triggers
4. arizona_hpdet_irq runs, blocks on info->lock
5. arizona_jackdet calls arizona_stop_mic() and clears info->hpdet_done
6. arizona_jackdet releases info->lock
7. arizona_hpdet_irq now can continue running and:
7.1 Calls arizona_start_mic() (if a mic was detected)
7.2 sets info->hpdet_done
Step 7 is undesirable / a bug:
7.1 causes the device to stay in a high power-state (with MICVDD enabled)
7.2 causes hpdet to not run on the next jack insertion, which in turn
causes the EXTCON_JACK_HEADPHONE state to never get set
This fixes both issues by skipping these 2 steps when arizona_hpdet_irq
runs after the jack has been unplugged.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/extcon/extcon-arizona.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index aae82db542a5..f7ef247de46a 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -601,7 +601,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
struct arizona *arizona = info->arizona;
int id_gpio = arizona->pdata.hpdet_id_gpio;
unsigned int report = EXTCON_JACK_HEADPHONE;
- int ret, reading;
+ int ret, reading, state;
bool mic = false;
mutex_lock(&info->lock);
@@ -614,12 +614,11 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
}
/* If the cable was removed while measuring ignore the result */
- ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
- if (ret < 0) {
- dev_err(arizona->dev, "Failed to check cable state: %d\n",
- ret);
+ state = extcon_get_state(info->edev, EXTCON_MECHANICAL);
+ if (state < 0) {
+ dev_err(arizona->dev, "Failed to check cable state: %d\n", state);
goto out;
- } else if (!ret) {
+ } else if (!state) {
dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n");
goto done;
}
@@ -667,7 +666,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
gpio_set_value_cansleep(id_gpio, 0);
/* If we have a mic then reenable MICDET */
- if (mic || info->mic)
+ if (state && (mic || info->mic))
arizona_start_mic(info);
if (info->hpdet_active) {
@@ -675,7 +674,9 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
info->hpdet_active = false;
}
- info->hpdet_done = true;
+ /* Do not set hp_det done when the cable has been unplugged */
+ if (state)
+ info->hpdet_done = true;
out:
mutex_unlock(&info->lock);
--
2.29.2
next prev parent reply other threads:[~2021-01-23 12:15 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-23 12:13 [PATCH v4 00/13] MFD/extcon/ASoC: Rework arizona codec jack-detect support Hans de Goede
2021-01-23 12:13 ` [PATCH v4 01/13] mfd: arizona: Drop arizona-extcon cells Hans de Goede
2021-01-30 14:41 ` Charles Keepax
2021-01-23 12:13 ` Hans de Goede [this message]
2021-01-30 14:43 ` [PATCH v4 02/13] extcon: arizona: Fix some issues when HPDET IRQ fires after the jack has been unplugged Charles Keepax
2021-01-23 12:13 ` [PATCH v4 03/13] extcon: arizona: Fix various races on driver unbind Hans de Goede
2021-01-30 14:56 ` Charles Keepax
2021-01-23 12:13 ` [PATCH v4 04/13] extcon: arizona: Fix flags parameter to the gpiod_get("wlf,micd-pol") call Hans de Goede
2021-01-23 12:13 ` [PATCH v4 05/13] extcon: arizona: Always use pm_runtime_get_sync() when we need the device to be awake Hans de Goede
2021-01-23 16:41 ` Charles Keepax
2021-01-30 14:57 ` Charles Keepax
2021-01-23 12:13 ` [PATCH v4 06/13] ASoC/extcon: arizona: Move arizona jack code to sound/soc/codecs/arizona-jack.c Hans de Goede
2021-01-30 14:58 ` Charles Keepax
2021-01-23 12:13 ` [PATCH v4 07/13] ASoC: arizona-jack: Move jack-detect variables to struct arizona_priv Hans de Goede
2021-01-30 15:15 ` Charles Keepax
2021-01-23 12:13 ` [PATCH v4 08/13] ASoC: arizona-jack: Use arizona->dev for runtime-pm Hans de Goede
2021-01-30 15:16 ` Charles Keepax
2021-01-23 12:13 ` [PATCH v4 09/13] ASoC: arizona-jack: convert into a helper library for codec drivers Hans de Goede
2021-01-30 15:25 ` Charles Keepax
2021-01-23 12:17 ` [PATCH v4 10/13] ASoC: arizona-jack: Use snd_soc_jack to report jack events Hans de Goede
2021-01-23 12:17 ` [PATCH v4 11/13] ASoC: arizona-jack: Cleanup logging Hans de Goede
2021-01-24 19:53 ` Andy Shevchenko
2021-01-24 21:13 ` Hans de Goede
2021-01-30 15:30 ` Charles Keepax
2021-01-23 12:17 ` [PATCH v4 12/13] ASoC: arizona: Make the wm5102, wm5110, wm8997 and wm8998 drivers use the new jack library Hans de Goede
2021-01-30 15:32 ` Charles Keepax
2021-01-23 12:17 ` [PATCH v4 13/13] ASoC: Intel: bytcr_wm5102: Add jack detect support Hans de Goede
2021-01-30 15:40 ` Charles Keepax
2021-01-30 18:26 ` Hans de Goede
2021-01-30 15:28 ` [PATCH v4 10/13] ASoC: arizona-jack: Use snd_soc_jack to report jack events Charles Keepax
2021-02-04 11:05 ` [PATCH v4 00/13] MFD/extcon/ASoC: Rework arizona codec jack-detect support Lee Jones
2021-02-04 11:09 ` Hans de Goede
2021-02-04 11:13 ` Lee Jones
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