[media] gspca: Remove gspca-specific debug magic

Instead use v4l2_dbg and v4l2_err. Note that the PDEBUG macro is kept to
make this patch-set less invasive, but it is simply a wrapper around
v4l2_dbg now. Most of the other changes are there to make the dev parameter
for the v4l2_xxx macros available everywhere we do logging.

Signed-off-by: Theodore Kilgore <kilgota@auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/gspca/zc3xx.c b/drivers/media/usb/gspca/zc3xx.c
index a8dc421f..cbfc2f9 100644
--- a/drivers/media/usb/gspca/zc3xx.c
+++ b/drivers/media/usb/gspca/zc3xx.c
@@ -6259,12 +6259,11 @@
 	retword |= i2c_read(gspca_dev, 0x01);		/* ID 1 */
 	PDEBUG(D_PROBE, "probe 3wr vga 2 0x%04x", retword);
 	if (retword == 0x2030) {
-#ifdef GSPCA_DEBUG
 		u8 retbyte;
 
 		retbyte = i2c_read(gspca_dev, 0x02);	/* revision number */
 		PDEBUG(D_PROBE, "sensor PO2030 rev 0x%02x", retbyte);
-#endif
+
 		send_unknown(gspca_dev, SENSOR_PO2030);
 		return retword;
 	}