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drm/i915: Add some debug breadcrumbs to connector detection

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Try to decypher detection failures is a little tricker at the moment as
the only indicator of progress is when output_poll_execute() tells us
the result after the connector->detect() has run. This patch adds a
telltale to the start of each detect function so that we can track
progress and associate activity more clearly with each connector.

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
2013-07-20 20:27:08 +01:00
committed by Daniel Vetter
parent d8fc8a4710
commit 164c859845
7 changed files with 22 additions and 0 deletions
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4
drivers/gpu/drm/i915/intel_crt.c
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@@ -613,6 +613,10 @@ intel_crt_detect(struct drm_connector *connector, bool force)
enum drm_connector_status status;
struct intel_load_detect_pipe tmp;
DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
connector->base.id, drm_get_connector_name(connector),
force);
if (I915_HAS_HOTPLUG(dev)) {
/* We can not rely on the HPD pin always being correctly wired
* up, for example many KVM do not pass it through, and so