[Intel-gfx] [PATCH] drm/i915: Kill WA 0826

[Rodrigo Vivi]

According to BSpec this is not needed anymore:

"This workaround is no longer needed since NV12
support is dropped for the affected projects.
"

v2: Rebase

Cc: Clinton Taylor <clinton.a.taylor at intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e1b712a43162..f202b9b3b796 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4823,16 +4823,6 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 		}
 	}
 
-	/*
-	 * Display WA #826 (SKL:ALL, BXT:ALL)
-	 * disable wm level 1-7 on NV12 planes
-	 */
-	if (wp->is_planar && level >= 1 &&
-	    (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))) {
-		result->plane_en = false;
-		return 0;
-	}
-
 	/* The number of lines are ignored for the level 0 watermark. */
 	result->plane_res_b = res_blocks;
 	result->plane_res_l = res_lines;
-- 
2.19.1