PATCHES/patches/0083-thermal-da9062-61-Prevent-hardware-access-during-sys.patch

From c9755d22f2c93a353bc647056111900525d57801 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 12 Oct 2018 09:20:17 +0200
Subject: [PATCH 083/145] thermal: da9062/61: Prevent hardware access during
 system suspend

[ Upstream commit 760eea43f8c6d48684f1f34b8a02fddc1456e849 ]

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 51e20d0e3a60cf46 ("thermal: Prevent polling from
happening during system suspend").

Fixes: 608567aac3206ae8 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/da9062-thermal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index dd8dd947b7f0..01b0cb994457 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -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;
 }
-- 
2.19.1

1	From c9755d22f2c93a353bc647056111900525d57801 Mon Sep 17 00:00:00 2001
2	From: Geert Uytterhoeven <geert+renesas@glider.be>
3	Date: Fri, 12 Oct 2018 09:20:17 +0200
4	Subject: [PATCH 083/145] thermal: da9062/61: Prevent hardware access during
5	system suspend
6
7	[ Upstream commit 760eea43f8c6d48684f1f34b8a02fddc1456e849 ]
8
9	The workqueue used for monitoring the hardware may run while the device
10	is already suspended. Fix this by using the freezable system workqueue
11	instead, cfr. commit 51e20d0e3a60cf46 ("thermal: Prevent polling from
12	happening during system suspend").
13
14	Fixes: 608567aac3206ae8 ("thermal: da9062/61: Thermal junction temperature monitoring driver")
15	Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
16	Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
17	Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
18	Signed-off-by: Sasha Levin <sashal@kernel.org>
19	---
20	drivers/thermal/da9062-thermal.c \| 4 ++--
21	1 file changed, 2 insertions(+), 2 deletions(-)
22
23	diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
24	index dd8dd947b7f0..01b0cb994457 100644
25	--- a/drivers/thermal/da9062-thermal.c
26	+++ b/drivers/thermal/da9062-thermal.c
27	@@ -106,7 +106,7 @@ static void da9062_thermal_poll_on(struct work_struct *work)
28	THERMAL_EVENT_UNSPECIFIED);
29
30	delay = msecs_to_jiffies(thermal->zone->passive_delay);
31	- schedule_delayed_work(&thermal->work, delay);
32	+ queue_delayed_work(system_freezable_wq, &thermal->work, delay);
33	return;
34	}
35
36	@@ -125,7 +125,7 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
37	struct da9062_thermal *thermal = data;
38
39	disable_irq_nosync(thermal->irq);
40	- schedule_delayed_work(&thermal->work, 0);
41	+ queue_delayed_work(system_freezable_wq, &thermal->work, 0);
42
43	return IRQ_HANDLED;
44	}
45	--
46	2.19.1
47