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authorGeert Uytterhoeven <geert+renesas@glider.be>2018-10-12 09:20:15 +0200
committerEduardo Valentin <edubezval@gmail.com>2018-10-25 10:44:54 -0700
commit3a31386217628ffe2491695be2db933c25dde785 (patch)
tree36130612a0b28bba235ff2ac21cc6463fbe5231a /drivers/thermal/rcar_thermal.c
parent853cbc1f2d3a6ef9d5f6f99fe7c4b7595eae9d3a (diff)
thermal: rcar_thermal: Prevent hardware access during system suspend
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>
Diffstat (limited to 'drivers/thermal/rcar_thermal.c')
-rw-r--r--drivers/thermal/rcar_thermal.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 98f951391dcb..f0e385dd7a92 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -450,8 +450,8 @@ 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));
}
}