From ddd2b792cc942adfc31288dabf5d22886c31193f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Mon, 28 Nov 2016 19:37:04 +0200 Subject: [PATCH] drm/i915: Use the ilk_disable_lp_wm() return value MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Link: http://patchwork.freedesktop.org/patch/msgid/1480354637-14209-3-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst --- 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 b01faf50fe42..1f7d91af60cf 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 -- 2.20.1