From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
ilk_disable_lp_wm() will tell us whether the LP1+ watermarks were
disabled or not, and hence whether we need to for the vblank wait or
not. Let's use that information to eliminate some useless vblank
waits.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 5fef72b8ca61..ce9e7f2f395e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5114,10 +5114,8 @@ static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state)
*
* WaCxSRDisabledForSpriteScaling:ivb
*/
- if (pipe_config->disable_lp_wm) {
- ilk_disable_lp_wm(dev);
+ if (pipe_config->disable_lp_wm && ilk_disable_lp_wm(dev))
intel_wait_for_vblank(dev_priv, crtc->pipe);
- }
/*
* If we're doing a modeset, we're done. No need to do any pre-vblank
--
2.7.4
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