[PATCH 2/4] drm: Make the HPD status updates debug logs more readable

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Instead of just printing "status updated from 1 to 2", make those enum
numbers immediately readable.

v2: Also patch output_poll_execute() (Daniel Vetter)
v3: Use drm_get_connector_status_name (Ville Syrjälä)

Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
Reviewed-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> (for v1)
---
 drivers/gpu/drm/drm_crtc.c        |  1 +
 drivers/gpu/drm/drm_crtc_helper.c | 10 ++++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 3a8f7e6d..6b1e4b5 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -246,6 +246,7 @@ char *drm_get_connector_status_name(enum drm_connector_status status)
 	else
 		return "unknown";
 }
+EXPORT_SYMBOL(drm_get_connector_status_name);
 
 /**
  * drm_mode_object_get - allocate a new modeset identifier
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index e974f93..e447396 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -1005,10 +1005,11 @@ static void output_poll_execute(struct work_struct *work)
 			continue;
 
 		connector->status = connector->funcs->detect(connector, false);
-		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+		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);
+			      drm_get_connector_status_name(old_status),
+			      drm_get_connector_status_name(connector->status));
 		if (old_status != connector->status)
 			changed = true;
 	}
@@ -1083,10 +1084,11 @@ void drm_helper_hpd_irq_event(struct drm_device *dev)
 		old_status = connector->status;
 
 		connector->status = connector->funcs->detect(connector, false);
-		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+		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);
+			      drm_get_connector_status_name(old_status),
+			      drm_get_connector_status_name(connector->status));
 		if (old_status != connector->status)
 			changed = true;
 	}
-- 
1.8.1.4

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