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drm/i915: Add a timing breadcrumb to panel waits

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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 <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2013-12-02 09:57:16 +00:00 committed by Daniel Vetter
parent e445123975
commit 54c136d4e5
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_dp.c
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@ -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)