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drm/i915: only report hpd connector status change when it actually changed

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This reduces dmesg noise when there's a glitch on the hpd line, or there
are more than one connectors on the same hpd line and only one of them
changes.

While at it, switch to use the friendly status names instead of numbers.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jani Nikula 2013-09-17 14:26:34 +03:00 committed by Daniel Vetter
parent 46a5ae9f82
commit 67c347ff9b
1 changed files with 10 additions and 4 deletions
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14
drivers/gpu/drm/i915/i915_irq.c
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@ -665,7 +665,8 @@ static int i915_get_vblank_timestamp(struct drm_device *dev, int pipe,
crtc);
}
static int intel_hpd_irq_event(struct drm_device *dev, struct drm_connector *connector)
static bool intel_hpd_irq_event(struct drm_device *dev,
struct drm_connector *connector)
{
enum drm_connector_status old_status;
@ -673,11 +674,16 @@ static int intel_hpd_irq_event(struct drm_device *dev, struct drm_connector *con
old_status = connector->status;
connector->status = connector->funcs->detect(connector, false);
DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
if (old_status == connector->status)
return false;
DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
connector->base.id,
drm_get_connector_name(connector),
old_status, connector->status);
return (old_status != connector->status);
drm_get_connector_status_name(old_status),
drm_get_connector_status_name(connector->status));
return true;
}
/*