[Intel-gfx] [PATCH] drm/i915/glk: RGB565 planes now allow 90/270 rotation

[clinton.a.taylor at intel.com]

From: Clint Taylor <clinton.a.taylor at intel.com>

RGB565 Pixel format planes can now be rotated at 90 and 270 degrees

Signed-off-by: Clint Taylor <clinton.a.taylor at intel.com>
---
 drivers/gpu/drm/i915/intel_atomic_plane.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index 4325cb0..9a7a7ea 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -144,19 +144,16 @@ int intel_plane_atomic_check_with_state(struct intel_crtc_state *crtc_state,
 
 		/*
 		 * 90/270 is not allowed with RGB64 16:16:16:16,
-		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * RGB 16-bit 5:6:5 (prior to gen 9 LP), and Indexed 8-bit.
 		 * TBD: Add RGB64 case once its added in supported format list.
 		 */
-		switch (state->fb->format->format) {
-		case DRM_FORMAT_C8:
-		case DRM_FORMAT_RGB565:
+		if ((state->fb->format->format == DRM_FORMAT_C8) ||
+		    (state->fb->format->format == DRM_FORMAT_RGB565 &&
+		     !IS_GEN9_LP(dev_priv) )) {
 			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
 			              drm_get_format_name(state->fb->format->format,
 			                                  &format_name));
 			return -EINVAL;
-
-		default:
-			break;
 		}
 	}
 
-- 
1.9.1