V4L/DVB (13994): gscpa_stv0680: Fix camera initialization on hotplug

stv0680 cameras currently only work when already plugged in when the system
boots (or when manually re-loading the driver after boot). This patch fixes
this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/stv0680.c b/drivers/media/video/gspca/stv0680.c
index 856675e00e2d..7312bf43113b 100644
--- a/drivers/media/video/gspca/stv0680.c
+++ b/drivers/media/video/gspca/stv0680.c
@@ -138,6 +138,10 @@ static int sd_config(struct gspca_dev *gspca_dev,
         struct sd *sd = (struct sd *) gspca_dev;
         struct cam *cam = &gspca_dev->cam;
 
+        /* Give the camera some time to settle, otherwise initalization will
+           fail on hotplug, and yes it really needs a full second. */
+        msleep(1000);
+
         /* ping camera to be sure STV0680 is present */
         if (stv_sndctrl(gspca_dev, 0, 0x88, 0x5678, 0x02) != 0x02 ||
             gspca_dev->usb_buf[0] != 0x56 || gspca_dev->usb_buf[1] != 0x78) {