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thermal: da9062/61: Prevent hardware access during system suspend 

The workqueue used for monitoring the hardware may run while the device
is already suspended.  Fix this by using the freezable system workqueue
instead, cfr. commit 51e20d0e3a ("thermal: Prevent polling from
happening during system suspend").

Fixes: 608567aac3 ("thermal: da9062/61: Thermal junction temperature monitoring driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Geert Uytterhoeven 2018-10-12 09:20:17 +02:00 committed by Eduardo Valentin
parent 697ee786f1
commit 760eea43f8
1 changed files with 2 additions and 2 deletions
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4
drivers/thermal/da9062-thermal.c
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@ -106,7 +106,7 @@ static void da9062_thermal_poll_on(struct work_struct *work)
THERMAL_EVENT_UNSPECIFIED);
delay = msecs_to_jiffies(thermal->zone->passive_delay);
schedule_delayed_work(&thermal->work, delay);
queue_delayed_work(system_freezable_wq, &thermal->work, delay);
return;
}
@ -125,7 +125,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
struct da9062_thermal *thermal = data;
disable_irq_nosync(thermal->irq);
schedule_delayed_work(&thermal->work, 0);
queue_delayed_work(system_freezable_wq, &thermal->work, 0);
return IRQ_HANDLED;
}