From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
commit 6aaad58c872db062f7ea2761421ca748bd0931cc upstream.
The driver uses atomic version of gpiod_set_value() without any real
reason. It is called in a workqueue under mutex so it could sleep
there. Changing it to "can_sleep" flavor allows to use the driver with
all GPIO chips.
Fixes: 4ed754de2d66 ("extcon: Add support for ptn5150 extcon driver")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@xxxxxxxxx>
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/extcon/extcon-ptn5150.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/extcon/extcon-ptn5150.c
+++ b/drivers/extcon/extcon-ptn5150.c
@@ -127,7 +127,7 @@ static void ptn5150_irq_work(struct work
case PTN5150_DFP_ATTACHED:
extcon_set_state_sync(info->edev,
EXTCON_USB_HOST, false);
- gpiod_set_value(info->vbus_gpiod, 0);
+ gpiod_set_value_cansleep(info->vbus_gpiod, 0);
extcon_set_state_sync(info->edev, EXTCON_USB,
true);
break;
@@ -138,9 +138,9 @@ static void ptn5150_irq_work(struct work
PTN5150_REG_CC_VBUS_DETECTION_MASK) >>
PTN5150_REG_CC_VBUS_DETECTION_SHIFT);
if (vbus)
- gpiod_set_value(info->vbus_gpiod, 0);
+ gpiod_set_value_cansleep(info->vbus_gpiod, 0);
else
- gpiod_set_value(info->vbus_gpiod, 1);
+ gpiod_set_value_cansleep(info->vbus_gpiod, 1);
extcon_set_state_sync(info->edev,
EXTCON_USB_HOST, true);
@@ -156,7 +156,7 @@ static void ptn5150_irq_work(struct work
EXTCON_USB_HOST, false);
extcon_set_state_sync(info->edev,
EXTCON_USB, false);
- gpiod_set_value(info->vbus_gpiod, 0);
+ gpiod_set_value_cansleep(info->vbus_gpiod, 0);
}
}
