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@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_crt.c | 4 ++++
drivers/gpu/drm/i915/intel_dp.c | 3 +++
drivers/gpu/drm/i915/intel_dvo.c | 2 ++
drivers/gpu/drm/i915/intel_hdmi.c | 3 +++
drivers/gpu/drm/i915/intel_lvds.c | 3 +++
drivers/gpu/drm/i915/intel_sdvo.c | 3 +++
drivers/gpu/drm/i915/intel_tv.c | 4 ++++
7 files changed, 22 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 3acec8c..0c0d4e8 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -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
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f474adb..c6996ce 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2820,6 +2820,9 @@ intel_dp_detect(struct drm_connector *connector, bool force)
enum drm_connector_status status;
struct edid *edid = NULL;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector));
+
intel_dp->has_audio = false;
if (HAS_PCH_SPLIT(dev))
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index cbbc49d..8b4ad27 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -332,6 +332,8 @@ static enum drm_connector_status
intel_dvo_detect(struct drm_connector *connector, bool force)
{
struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector));
return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev);
}
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 98df2a0..af18da7 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -866,6 +866,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
struct edid *edid;
enum drm_connector_status status = connector_status_disconnected;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector));
+
intel_hdmi->has_hdmi_sink = false;
intel_hdmi->has_audio = false;
intel_hdmi->rgb_quant_range_selectable = false;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 2adc024..dd17198 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -343,6 +343,9 @@ intel_lvds_detect(struct drm_connector *connector, bool force)
struct drm_device *dev = connector->dev;
enum drm_connector_status status;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector));
+
status = intel_panel_detect(dev);
if (status != connector_status_unknown)
return status;
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 798df11..c3b59b8 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1696,6 +1696,9 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
enum drm_connector_status ret;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id, drm_get_connector_name(connector));
+
if (!intel_sdvo_get_value(intel_sdvo,
SDVO_CMD_GET_ATTACHED_DISPLAYS,
&response, 2))
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 39debd8..b0b446f 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1305,6 +1305,10 @@ intel_tv_detect(struct drm_connector *connector, bool force)
struct intel_tv *intel_tv = intel_attached_tv(connector);
int type;
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] force=%d\n",
+ connector->base.id, drm_get_connector_name(connector),
+ force);
+
mode = reported_modes[0];
if (force) {
--
1.8.3.2
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