Commit 12514f66 authored by Hans de Goede's avatar Hans de Goede Committed by Chanwoo Choi
Browse files

extcon: int3496: Request non-exclusive access to the ID GPIO 



Some DSDTs are buggy and do a read from the ID pin during the ACPI
initialization, causing the pin to be marked as owned by:
"ACPI:OpRegion" and causing gpiod_get() to fail with -EBUSY.

Pass the GPIOD_FLAGS_BIT_NONEXCLUSIVE flag to the gpiod_get() call
to work around this.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
parent 019c34aa

drivers/extcon/extcon-intel-int3496.c

+2 −1
Original line number Diff line number Diff line
@@ -106,7 +106,8 @@ static int int3496_probe(struct platform_device *pdev) 
	if (ret)

		return ret;



	data->gpio_usb_id = devm_gpiod_get(dev, "id", GPIOD_IN);

	data->gpio_usb_id =

		devm_gpiod_get(dev, "id", GPIOD_IN | GPIOD_FLAGS_BIT_NONEXCLUSIVE);

	if (IS_ERR(data->gpio_usb_id)) {

		ret = PTR_ERR(data->gpio_usb_id);

		dev_err(dev, "can't request USB ID GPIO: %d\n", ret);