drm/exynos: mixer: set correct mode for range of resolutions

With this patch, mixer driver find the correct resolution mode for
the range of resolutions, upto 1080 vertical lines. Resolution will
be categorized to NTSC SD, PAL SD or HD and the correct mode is
set to the mixer configuration register.
Signed-off-by: NRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_mixer.c

@@ -284,13 +284,13 @@ static void mixer_cfg_scan(struct mixer_context *ctx, unsigned int height)
 				MXR_CFG_SCAN_PROGRASSIVE);
 
 	/* choosing between porper HD and SD mode */
-	if (height == 480)
+	if (height <= 480)
 		val |= MXR_CFG_SCAN_NTSC | MXR_CFG_SCAN_SD;
-	else if (height == 576)
+	else if (height <= 576)
 		val |= MXR_CFG_SCAN_PAL | MXR_CFG_SCAN_SD;
-	else if (height == 720)
+	else if (height <= 720)
 		val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
-	else if (height == 1080)
+	else if (height <= 1080)
 		val |= MXR_CFG_SCAN_HD_1080 | MXR_CFG_SCAN_HD;
 	else
 		val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;