[Intel-gfx] [PATCH 3/3] drm/i915: Remove dead update_wm_pre assignment from SKL wm code

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

SKL+ do not use crtc_state->update_wm_pre, so there is absolutely no
point it setting it. crtc_state->update_wm_pre only exists as a
temporary hack for pre-g4x platforms until we redo their
watermarks to be be atomic.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5d823bdc63a9..9801412062cc 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5473,12 +5473,6 @@ skl_compute_wm(struct drm_atomic_state *state)
 
 		if (changed)
 			results->dirty_pipes |= drm_crtc_mask(crtc);
-
-		if ((results->dirty_pipes & drm_crtc_mask(crtc)) == 0)
-			/* This pipe's WM's did not change */
-			continue;
-
-		intel_cstate->update_wm_pre = true;
 	}
 
 	skl_print_wm_changes(state);
-- 
2.18.1