From 11e16eb365f4f6979cfcb2a2d379338b383590d9 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 3 Nov 2010 14:45:07 -0400
Subject: [PATCH] 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>
---
sound/soc/codecs/wm8962.c | 2 ++
1 file changed, 2 insertions(+)
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));
}
--
2.20.1