[alsa-devel] [PATCH] ASoC: Use pm_wakeup_event() in WM8962 jack detection
Mark Brown
broonie at opensource.wolfsonmicro.com
Wed Nov 3 19:50:18 CET 2010
Ensure that the system does not suspend while we process a WM8962 jack
event by using pm_wakeup_event() to block the suspend while we're waiting
for the jack to settle. Use a slightly longer timeout than the jack waits
to allow for other stuff to take over and delays in scheduling.
Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
sound/soc/codecs/wm8962.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 894d0cd..2eaf9bb 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3353,6 +3353,8 @@ static irqreturn_t wm8962_irq(int irq, void *data)
if (active & (WM8962_MICSCD_EINT | WM8962_MICD_EINT)) {
dev_dbg(codec->dev, "Microphone event detected\n");
+ pm_wakeup_event(codec->dev, 300);
+
schedule_delayed_work(&wm8962->mic_work,
msecs_to_jiffies(250));
}
--
1.7.1
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