V4L/DVB (6516): Allow faster loading by using 64 bytes block by em28xx i2c write

Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/em28xx/em28xx-cards.c

@@ -371,7 +371,8 @@ static void em28xx_config_tuner (struct em28xx *dev)
 
 	memset (&ctl,0,sizeof(ctl));
 
-	ctl.fname = XC2028_DEFAULT_FIRMWARE;
+	ctl.fname   = XC2028_DEFAULT_FIRMWARE;
+	ctl.max_len = 64;
 
 	xc2028_cfg.tuner = TUNER_XC2028;
 	xc2028_cfg.priv  = &ctl;

drivers/media/video/tuner-xc2028.c

@@ -685,6 +685,9 @@ static int xc2028_set_config (struct dvb_frontend *fe, void *priv_cfg)
 		strcpy(priv->ctrl.fname, p->fname);
 	}
 
+	if (p->max_len>0)
+		priv->max_len = p->max_len;
+
 	tuner_info("%s OK\n", __FUNCTION__);
 
 	return 0;

drivers/media/video/tuner-xc2028.h

@@ -19,6 +19,7 @@ enum xc2028_firm_type {
 struct xc2028_ctrl {
 	enum xc2028_firm_type	type;
 	char			*fname;
+	int			max_len;
 };
 
 /* xc2028 commands for callback */