[PATCH v4 2/7] extcon: usb-gpio: add support for ACPI gpio interface

From: Lu Baolu
Date: Thu Mar 17 2016 - 01:47:06 EST


GPIO resource could be retrieved through APCI as well.

Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Reviewed-by: Felipe Balbi <balbi@xxxxxxxxxx>
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
---
drivers/extcon/extcon-usb-gpio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index af9c8b0..472c431 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -26,6 +26,7 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
+#include <linux/acpi.h>

#define USB_GPIO_DEBOUNCE_MS 20 /* ms */

@@ -91,7 +92,7 @@ static int usb_extcon_probe(struct platform_device *pdev)
struct usb_extcon_info *info;
int ret;

- if (!np)
+ if (!np && !ACPI_HANDLE(dev))
return -EINVAL;

info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
--
2.1.4