From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 16 May 2017 12:25:45 +0000 (+0300)
Subject: drm/omap: fix YUV422 90/270 rotation with mirroring
X-Git-Tag: v4.14-rc1~484^2~30^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2add8d1310eb5b1094e02a7261b6e35df5e65bf3;p=platform%2Fkernel%2Flinux-rpi.git

drm/omap: fix YUV422 90/270 rotation with mirroring

When rotating 90/270 + mirroring with YUV422, the end result will have
adjacent pixels swapped. The problem is that
dispc_ovl_set_rotation_attrs() has wrong rotation values for these
cases.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---

diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 18e9dff..fd7504b 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -1819,13 +1819,13 @@ static void dispc_ovl_set_rotation_attrs(enum omap_plane_id plane, u8 rotation,
 				vidrot = 2;
 				break;
 			case DRM_MODE_ROTATE_90:
-				vidrot = 3;
+				vidrot = 1;
 				break;
 			case DRM_MODE_ROTATE_180:
 				vidrot = 0;
 				break;
 			case DRM_MODE_ROTATE_270:
-				vidrot = 1;
+				vidrot = 3;
 				break;
 			}
 		} else {