1 files changed, 22 insertions, 10 deletions

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index fd932b83ce43..b1b9e3f1be90 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1457,6 +1457,7 @@ static void dispc_ovl_set_scaling_uv(enum omap_plane plane,
 {
         int scale_x = out_width != orig_width;
         int scale_y = out_height != orig_height;
+        bool chroma_upscale = true;
 
         if (!dss_has_feature(FEAT_HANDLE_UV_SEPARATE))
                 return;
@@ -1473,23 +1474,34 @@ static void dispc_ovl_set_scaling_uv(enum omap_plane plane,
 
         switch (color_mode) {
         case OMAP_DSS_COLOR_NV12:
-                /* UV is subsampled by 2 vertically*/
-                orig_height >>= 1;
-                /* UV is subsampled by 2 horz.*/
-                orig_width >>= 1;
+                if (chroma_upscale) {
+                        /* UV is subsampled by 2 horizontally and vertically */
+                        orig_height >>= 1;
+                        orig_width >>= 1;
+                } else {
+                        /* UV is downsampled by 2 horizontally and vertically */
+                        orig_height <<= 1;
+                        orig_width <<= 1;
+                }
+
                 break;
         case OMAP_DSS_COLOR_YUV2:
         case OMAP_DSS_COLOR_UYVY:
-                /*For YUV422 with 90/270 rotation,
-                 *we don't upsample chroma
-                 */
+                /* For YUV422 with 90/270 rotation, we don't upsample chroma */
                 if (rotation == OMAP_DSS_ROT_0 ||
-                        rotation == OMAP_DSS_ROT_180)
-                        /* UV is subsampled by 2 hrz*/
-                        orig_width >>= 1;
+                                rotation == OMAP_DSS_ROT_180) {
+                        if (chroma_upscale)
+                                /* UV is subsampled by 2 horizontally */
+                                orig_width >>= 1;
+                        else
+                                /* UV is downsampled by 2 horizontally */
+                                orig_width <<= 1;
+                }
+
                 /* must use FIR for YUV422 if rotated */
                 if (rotation != OMAP_DSS_ROT_0)
                         scale_x = scale_y = true;
+
                 break;
         default:
                 BUG();