Revert "drm: Add and handle new aspect ratios in DRM layer"

This reverts commit a68362fe.

Adding new mode flags willy nilly breaks existing userspace. We need to
coordinate this better, potentially with a new client cap that only
exposes the aspect ratio flags when userspace is prepared for them
(similar to what we do with stereo 3D modes).

Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Lin, Jia <lin.a.jia@intel.com>
Cc: Akashdeep Sharma <akashdeep.sharma@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Cc: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1478176304-6743-1-git-send-email-ville.syrjala@linux.intel.com

drivers/gpu/drm/drm_modes.c

@@ -1507,12 +1507,6 @@ void drm_mode_convert_to_umode(struct drm_mode_modeinfo *out,
 	case HDMI_PICTURE_ASPECT_16_9:
 		out->flags |= DRM_MODE_FLAG_PIC_AR_16_9;
 		break;
-	case HDMI_PICTURE_ASPECT_64_27:
-		out->flags |= DRM_MODE_FLAG_PIC_AR_64_27;
-		break;
-	case DRM_MODE_PICTURE_ASPECT_256_135:
-		out->flags |= DRM_MODE_FLAG_PIC_AR_256_135;
-		break;
 	case HDMI_PICTURE_ASPECT_RESERVED:
 	default:
 		out->flags |= DRM_MODE_FLAG_PIC_AR_NONE;
@@ -1574,12 +1568,6 @@ int drm_mode_convert_umode(struct drm_display_mode *out,
 	case DRM_MODE_FLAG_PIC_AR_16_9:
 		out->picture_aspect_ratio |= HDMI_PICTURE_ASPECT_16_9;
 		break;
-	case DRM_MODE_FLAG_PIC_AR_64_27:
-		out->picture_aspect_ratio |= HDMI_PICTURE_ASPECT_64_27;
-		break;
-	case DRM_MODE_FLAG_PIC_AR_256_135:
-		out->picture_aspect_ratio |= HDMI_PICTURE_ASPECT_256_135;
-		break;
 	default:
 		out->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE;
 		break;

include/uapi/drm/drm_mode.h

@@ -89,8 +89,6 @@ extern "C" {
 #define DRM_MODE_PICTURE_ASPECT_NONE		0
 #define DRM_MODE_PICTURE_ASPECT_4_3		1
 #define DRM_MODE_PICTURE_ASPECT_16_9		2
-#define DRM_MODE_PICTURE_ASPECT_64_27		3
-#define DRM_MODE_PICTURE_ASPECT_256_135		4
 
 /* Aspect ratio flag bitmask (4 bits 22:19) */
 #define DRM_MODE_FLAG_PIC_AR_MASK		(0x0F<<19)
@@ -100,10 +98,6 @@ extern "C" {
 			(DRM_MODE_PICTURE_ASPECT_4_3<<19)
 #define  DRM_MODE_FLAG_PIC_AR_16_9 \
 			(DRM_MODE_PICTURE_ASPECT_16_9<<19)
-#define  DRM_MODE_FLAG_PIC_AR_64_27 \
-			(DRM_MODE_PICTURE_ASPECT_64_27<<19)
-#define  DRM_MODE_FLAG_PIC_AR_256_135 \
-			(DRM_MODE_PICTURE_ASPECT_256_135<<19)
 
 /* DPMS flags */
 /* bit compatible with the xorg definitions. */