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drm/i915: Add some debug breadcrumbs to connector detection
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>
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7 changed files with 22 additions and 0 deletions
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@ -613,6 +613,10 @@ intel_crt_detect(struct drm_connector *connector, bool force)
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enum drm_connector_status status;
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struct intel_load_detect_pipe tmp;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
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connector->base.id, drm_get_connector_name(connector),
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force);
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if (I915_HAS_HOTPLUG(dev)) {
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/* We can not rely on the HPD pin always being correctly wired
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* up, for example many KVM do not pass it through, and so
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@ -2815,6 +2815,9 @@ intel_dp_detect(struct drm_connector *connector, bool force)
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enum drm_connector_status status;
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struct edid *edid = NULL;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, drm_get_connector_name(connector));
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intel_dp->has_audio = false;
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if (HAS_PCH_SPLIT(dev))
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@ -332,6 +332,8 @@ static enum drm_connector_status
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intel_dvo_detect(struct drm_connector *connector, bool force)
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{
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struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, drm_get_connector_name(connector));
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return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev);
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}
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@ -866,6 +866,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
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struct edid *edid;
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enum drm_connector_status status = connector_status_disconnected;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, drm_get_connector_name(connector));
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intel_hdmi->has_hdmi_sink = false;
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intel_hdmi->has_audio = false;
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intel_hdmi->rgb_quant_range_selectable = false;
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@ -339,6 +339,9 @@ intel_lvds_detect(struct drm_connector *connector, bool force)
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struct drm_device *dev = connector->dev;
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enum drm_connector_status status;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, drm_get_connector_name(connector));
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status = intel_panel_detect(dev);
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if (status != connector_status_unknown)
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return status;
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@ -1696,6 +1696,9 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
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struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
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enum drm_connector_status ret;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
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connector->base.id, drm_get_connector_name(connector));
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if (!intel_sdvo_get_value(intel_sdvo,
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SDVO_CMD_GET_ATTACHED_DISPLAYS,
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&response, 2))
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@ -1305,6 +1305,10 @@ intel_tv_detect(struct drm_connector *connector, bool force)
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struct intel_tv *intel_tv = intel_attached_tv(connector);
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int type;
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DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
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connector->base.id, drm_get_connector_name(connector),
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force);
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mode = reported_modes[0];
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if (force) {
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