viafb: clean up duoview

Clean the duoview handling up by replacing the varible with the funtion in
the only place where it is used.  This is a code cleanup only, no runtime
change expected.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/via/viafbdev.c

@@ -1009,7 +1009,8 @@ static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 		return -ENODEV;
 
 	/* When duoview and using lcd , use soft cursor */
-	if (viafb_LCD_ON || ((struct viafb_par *)(info->par))->duoview)
+	if (viafb_LCD_ON || (!viafb_SAMM_ON &&
+		viafb_LCD2_ON + viafb_DVI_ON + viafb_CRT_ON == 2))
 		return -ENODEV;
 
 	viafb_show_hw_cursor(info, HW_Cursor_OFF);
@@ -1379,18 +1380,6 @@ static int get_primary_device(void)
 	return primary_device;
 }
 
-static u8 is_duoview(void)
-{
-	if (0 == viafb_SAMM_ON) {
-		if (viafb_LCD_ON + viafb_LCD2_ON +
-			viafb_DVI_ON + viafb_CRT_ON == 2)
-			return true;
-		return false;
-	} else {
-		return false;
-	}
-}
-
 static void apply_second_mode_setting(struct fb_var_screeninfo
 	*sec_var)
 {
@@ -1499,8 +1488,6 @@ static int apply_device_setting(struct viafb_ioctl_setting setting_info,
 		need_set_mode = 1;
 	}
 
-	viaparinfo->duoview = is_duoview();
-
 	if (!need_set_mode) {
 		;
 	} else {
@@ -1621,7 +1608,6 @@ static void parse_active_dev(void)
 		viafb_CRT_ON = STATE_ON;
 		viafb_SAMM_ON = STATE_OFF;
 	}
-	viaparinfo->duoview = is_duoview();
 }
 
 static void parse_video_dev(void)

drivers/video/via/viafbdev.h

@@ -52,7 +52,6 @@ struct viafb_par {
 	u32 VQ_end;		/* Virtual Queue End Address */
 	u32 iga_path;
 	struct proc_dir_entry *proc_entry;	/*viafb proc entry */
-	u8 duoview;		/*Is working in duoview mode? */
 
 	/* I2C stuff */
 	struct via_i2c_stuff i2c_stuff;