From: Jean-François Moine <moinejf@free.fr>
Date: Tue, 27 Jul 2010 08:34:49 +0000 (-0300)
Subject: V4L/DVB: gspca - vc032x: Force main register write at probe time (poxxxx)
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3d217c8656842c77d6f33329a034102157363c8d;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

V4L/DVB: gspca - vc032x: Force main register write at probe time (poxxxx)

On laptops, the webcam sometimes disconnects when writing the first main
register (b300). This patch prevents the creation of a new /dev/video<n>
on streaming start.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/gspca/vc032x.c b/drivers/media/video/gspca/vc032x.c
index 48a8af3078a3..b16fd47e8ced 100644
--- a/drivers/media/video/gspca/vc032x.c
+++ b/drivers/media/video/gspca/vc032x.c
@@ -3520,8 +3520,8 @@ static int sd_init(struct gspca_dev *gspca_dev)
 			if (gspca_dev->usb_buf[0] != 0) {
 				reg_w(gspca_dev, 0xa0, 0x26, 0xb300);
 				reg_w(gspca_dev, 0xa0, 0x04, 0xb300);
-				reg_w(gspca_dev, 0xa0, 0x00, 0xb300);
 			}
+			reg_w(gspca_dev, 0xa0, 0x00, 0xb300);
 		}
 	}
 	return gspca_dev->usb_err;