extcon: Simplify extcon_dev_register() prototype by removing unnecessary parameter

This patch remove extcon_dev_register()'s second parameter which means
the pointer of parent device to simplify prototype of this function.
So, if extcon device has the parent device, it should set the pointer of
parent device to edev.dev.parent in extcon device driver instead of in
extcon_dev_register().

Cc: Graeme Gregory <gg@slimlogic.co.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 0c2fb68fb791..6c91976dd823 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -178,9 +178,10 @@ static int palmas_usb_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, palmas_usb);
 
         palmas_usb->edev.supported_cable = palmas_extcon_cable;
+        palmas_usb->edev.dev.parent = palmas_usb->dev;
         palmas_usb->edev.mutually_exclusive = mutually_exclusive;
 
-        status = extcon_dev_register(&palmas_usb->edev, palmas_usb->dev);
+        status = extcon_dev_register(&palmas_usb->edev);
         if (status) {
                 dev_err(&pdev->dev, "failed to register extcon device\n");
                 return status;