From 12514f668c1fc608624b23a3cccc4845290c1211 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 28 Dec 2021 18:01:39 +0100 Subject: 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: Hans de Goede Signed-off-by: Chanwoo Choi --- drivers/extcon/extcon-intel-int3496.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/extcon') diff --git a/drivers/extcon/extcon-intel-int3496.c b/drivers/extcon/extcon-intel-int3496.c index df6ab4ef46f5..20605574020c 100644 --- a/drivers/extcon/extcon-intel-int3496.c +++ b/drivers/extcon/extcon-intel-int3496.c @@ -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); -- cgit v1.2.3-59-g8ed1b