media: lirc: remove LIRCCODE and LIRC_GET_LENGTH

LIRCCODE is a lirc mode where a driver produces driver-dependent
codes for receive and transmit. No driver uses this any more. The
LIRC_GET_LENGTH ioctl was used for this mode only.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/rc/ir-lirc-codec.c

@@ -388,7 +388,6 @@ static int ir_lirc_register(struct rc_dev *dev)
 	ldev->features = features;
 	ldev->data = &dev->raw->lirc;
 	ldev->buf = NULL;
-	ldev->code_length = sizeof(struct ir_raw_event) * 8;
 	ldev->chunk_size = sizeof(int);
 	ldev->buffer_size = LIRCBUF_SIZE;
 	ldev->fops = &lirc_fops;

drivers/media/rc/lirc_dev.c

@@ -137,12 +137,6 @@ int lirc_register_device(struct lirc_dev *d)
 		return -EINVAL;
 	}
 
-	if (d->code_length < 1 || d->code_length > (BUFLEN * 8)) {
-		dev_err(&d->dev, "code length must be less than %d bits\n",
-			BUFLEN * 8);
-		return -EBADRQC;
-	}
-
 	if (!d->buf && !(d->fops && d->fops->read &&
 			 d->fops->poll && d->fops->unlocked_ioctl)) {
 		dev_err(&d->dev, "undefined read, poll, ioctl\n");
@@ -152,9 +146,6 @@ int lirc_register_device(struct lirc_dev *d)
 	/* some safety check 8-) */
 	d->name[sizeof(d->name) - 1] = '\0';
 
-	if (d->features == 0)
-		d->features = LIRC_CAN_REC_LIRCCODE;
-
 	if (LIRC_CAN_REC(d->features)) {
 		err = lirc_allocate_buffer(d);
 		if (err)
@@ -343,9 +334,6 @@ long lirc_dev_fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		 * for now, lirc_serial doesn't support mode changing either
 		 */
 		break;
-	case LIRC_GET_LENGTH:
-		result = put_user(d->code_length, (__u32 __user *)arg);
-		break;
 	default:
 		result = -ENOTTY;
 	}