From 54c136d4e525684a3310e3dd76de8ae81d7dbbf7 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 2 Dec 2013 09:57:16 +0000 Subject: [PATCH] drm/i915: Add a timing breadcrumb to panel waits When inspecting reports that boot/suspend/resume times are unusual it would be useful to clearly identify the time we must spend waiting for the hardware to complete its task. In this case we have a notification before we start waiting for the panel to change state, but none afterwards - which would be useful. Signed-off-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 5f97be6..d45b311 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1037,6 +1037,8 @@ static void ironlake_wait_panel_status(struct intel_dp *intel_dp, I915_READ(pp_stat_reg), I915_READ(pp_ctrl_reg)); } + + DRM_DEBUG_KMS("Wait complete\n"); } static void ironlake_wait_panel_on(struct intel_dp *intel_dp) -- 2.7.4