[PATCH] drm/i915: Wait one vblank after encoder enabling

[Mika Kahola]

Test if this reduces crc mismatches.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103166

Signed-off-by: Mika Kahola <mika.kahola at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 07c861884c70..8841ea1ca86b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5808,6 +5808,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
 	drm_crtc_vblank_on(crtc);
 
 	intel_encoders_enable(crtc, pipe_config, old_state);
+	intel_wait_for_vblank(dev_priv, pipe);
 
 	if (psl_clkgate_wa) {
 		intel_wait_for_vblank(dev_priv, pipe);
-- 
2.17.1