diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2018-10-12 10:20:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-28 20:28:39 +0300 |
| commit | 00192e5ead67e3a350a1eca10dfedf7c1bcc6b16 (patch) | |
| tree | 84b6de751b3f3a9c2b5af4395d8272e17092d38a /drivers/thermal/rcar_thermal.c | |
| parent | 28d4020576ee457394550ce20c61c6fe42c9c170 (diff) | |
| download | linux-00192e5ead67e3a350a1eca10dfedf7c1bcc6b16.tar.xz | |
thermal: rcar_thermal: Prevent hardware access during system suspend
[ Upstream commit 3a31386217628ffe2491695be2db933c25dde785 ]
On r8a7791/koelsch, sometimes the following message is printed during
system suspend:
rcar_thermal e61f0000.thermal: thermal sensor was broken
This happens if the workqueue runs while the device is already
suspended. Fix this by using the freezable system workqueue instead,
cfr. commit 51e20d0e3a60cf46 ("thermal: Prevent polling from happening
during system suspend").
Fixes: e0a5172e9eec7f0d ("thermal: rcar: add interrupt support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/thermal/rcar_thermal.c')
| -rw-r--r-- | drivers/thermal/rcar_thermal.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 73e5fee6cf1d..83126e2dce36 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -401,8 +401,8 @@ static irqreturn_t rcar_thermal_irq(int irq, void *data) rcar_thermal_for_each_priv(priv, common) { if (rcar_thermal_had_changed(priv, status)) { rcar_thermal_irq_disable(priv); - schedule_delayed_work(&priv->work, - msecs_to_jiffies(300)); + queue_delayed_work(system_freezable_wq, &priv->work, + msecs_to_jiffies(300)); } } |