[PATCH] drm/i915/display: Remove FBC modulo 4 restriction for ADL+

[Uma Shankar]

FBC restriction where FBC is disabled for non-modulo 4 plane size
(including plane size + yoffset) is fixed from ADL onwards in h/w.
WA:22010751166

Relax the restriction for the same.

Credits-to: Vidya Srinivas <vidya.srinivas at intel.com>
Signed-off-by: Uma Shankar <uma.shankar at intel.com>
---
 drivers/gpu/drm/i915/display/intel_fbc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index d4c5deff9cbe..bf257467a635 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -1550,14 +1550,14 @@ static int intel_fbc_check_plane(struct intel_atomic_state *state,
 	 * having a Y offset that isn't divisible by 4 causes FIFO underrun
 	 * and screen flicker.
 	 */
-	if (DISPLAY_VER(display) >= 9 &&
+	if (DISPLAY_VER(display) >= 9 && DISPLAY_VER(display) <= 12 &&
 	    plane_state->view.color_plane[0].y & 3) {
 		plane_state->no_fbc_reason = "plane start Y offset misaligned";
 		return 0;
 	}
 
 	/* Wa_22010751166: icl, ehl, tgl, dg1, rkl */
-	if (DISPLAY_VER(display) >= 11 &&
+	if ((DISPLAY_VER(display) == 11 || DISPLAY_VER(display) == 12) &&
 	    (plane_state->view.color_plane[0].y +
 	     (drm_rect_height(&plane_state->uapi.src) >> 16)) & 3) {
 		plane_state->no_fbc_reason = "plane end Y offset misaligned";
-- 
2.42.0