ASoC: Use pm_wakeup_event() in WM8962 jack detection

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@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 894d0cd3aa9b..2eaf9bb36b57 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));
         }