[PATCH] regulator: arizona-micsupp: freeze charge-pump state work

[Jiale Yao]

The charge-pump state worker accesses the device through regmap and then
updates DAPM state. It is currently queued on system_wq, so it can run
after the backing bus has suspended.

Queue the worker on system_freezable_wq so hardware access is deferred
until devices have resumed.

Fixes: e6ed90581bfa ("regulator: arizona-micsupp: Enable SYSCLK for charge pump")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jiale Yao <yaojiale02@xxxxxxx>
---
 drivers/regulator/arizona-micsupp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index be7208bc7409..ae99173b8236 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -78,7 +78,7 @@ static int arizona_micsupp_enable(struct regulator_dev *rdev)
 	ret = regulator_enable_regmap(rdev);
 
 	if (ret == 0)
-		schedule_work(&micsupp->check_cp_work);
+		queue_work(system_freezable_wq, &micsupp->check_cp_work);
 
 	return ret;
 }
@@ -90,7 +90,7 @@ static int arizona_micsupp_disable(struct regulator_dev *rdev)
 
 	ret = regulator_disable_regmap(rdev);
 	if (ret == 0)
-		schedule_work(&micsupp->check_cp_work);
+		queue_work(system_freezable_wq, &micsupp->check_cp_work);
 
 	return ret;
 }
@@ -102,7 +102,7 @@ static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena)
 
 	ret = regulator_set_bypass_regmap(rdev, ena);
 	if (ret == 0)
-		schedule_work(&micsupp->check_cp_work);
+		queue_work(system_freezable_wq, &micsupp->check_cp_work);
 
 	return ret;
 }
-- 
2.34.1