V4L/DVB (10931): zoran: Drop the lock_norm module parameter

The lock_norm module parameter doesn't look terribly useful. If you
don't want to change the norm, just don't change it. As a matter of
fact, no other v4l driver has such a parameter.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Documentation/video4linux/Zoran

@@ -401,8 +401,7 @@ Additional notes for software developers:
    first set the correct norm. Well, it seems logically correct: TV
    standard is "more constant" for current country than geometry
    settings of a variety of TV capture cards which may work in ITU or
-   square pixel format. Remember that users now can lock the norm to
-   avoid any ambiguity.
+   square pixel format.
 --
 Please note that lavplay/lavrec are also included in the MJPEG-tools
 (http://mjpeg.sf.net/).

drivers/media/video/zoran/zoran_driver.c

@@ -162,10 +162,6 @@ const struct zoran_format zoran_formats[] = {
 };
 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 
-static int lock_norm;	/* 0 = default 1 = Don't change TV standard (norm) */
-module_param(lock_norm, int, 0644);
-MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
-
 	/* small helper function for calculating buffersizes for v4l2
 	 * we calculate the nearest higher power-of-two, which
 	 * will be the recommended buffersize */
@@ -1483,22 +1479,6 @@ zoran_set_norm (struct zoran *zr,
 		return -EBUSY;
 	}
 
-	if (lock_norm && norm != zr->norm) {
-		if (lock_norm > 1) {
-			dprintk(1,
-				KERN_WARNING
-				"%s: set_norm() - TV standard is locked, can not switch norm\n",
-				ZR_DEVNAME(zr));
-			return -EPERM;
-		} else {
-			dprintk(1,
-				KERN_WARNING
-				"%s: set_norm() - TV standard is locked, norm was not changed\n",
-				ZR_DEVNAME(zr));
-			norm = zr->norm;
-		}
-	}
-
 	if (!(norm & zr->card.norms)) {
 		dprintk(1,
 			KERN_ERR "%s: set_norm() - unsupported norm %llx\n",