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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-11-14 19:25:09 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-11-15 11:44:43 +0000
commitf9a67059d43a8f12446356ed42d7694afc34bb92 (patch)
treec986b44b9b23214122f028f0cda4fafcff80391f /sound/soc/soc-jack.c
parentcb2b3cf1fedd31916b7c64d61e2d20d23bd3681a (diff)
downloadop-kernel-dev-f9a67059d43a8f12446356ed42d7694afc34bb92.zip
op-kernel-dev-f9a67059d43a8f12446356ed42d7694afc34bb92.tar.gz
ASoC: Prevent system suspend while debouncing wakeup capable GPIO jacks
If the device associated with a GPIO jack is wakeup capable then disable suspend while we're debouncing the jack so that we skip suspends that race with the jack. Note that currently the GPIO based jack has a CODEC associated with it which we're using right now. These jacks should be reparented against the card itself and this code adjusted. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/soc-jack.c')
-rw-r--r--sound/soc/soc-jack.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 4d95abb..619061d 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -209,6 +209,10 @@ static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio)
static irqreturn_t gpio_handler(int irq, void *data)
{
struct snd_soc_jack_gpio *gpio = data;
+ struct device *dev = gpio->jack->codec->card->dev;
+
+ if (device_may_wakeup(dev))
+ pm_wakeup_event(dev, gpio->debounce_time + 50);
schedule_delayed_work(&gpio->work,
msecs_to_jiffies(gpio->debounce_time));
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