[PATCH v2 12/12] drm/msm/dp: Add sink_count and link_ready to debug logs

[Jessica Zhang]

Add sink count and link_ready to the debug logs for [un]plug and HPD IRQ
handling.

Signed-off-by: Jessica Zhang <jessica.zhang at oss.qualcomm.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 38 ++++++++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index dd529942f7db..93ea623473f4 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -455,8 +455,10 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp, u32 data)
 
 	msm_dp_aux_enable_xfers(dp->aux, true);
 
-	drm_dbg_dp(dp->drm_dev, "Before, type=%d\n",
-			dp->msm_dp_display.connector_type);
+	drm_dbg_dp(dp->drm_dev, "Before, type=%d sink_count=%d, link_ready=%d\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count,
+			dp->msm_dp_display.link_ready);
 
 	if (dp->msm_dp_display.link_ready)
 		return 0;
@@ -473,8 +475,10 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp, u32 data)
 		pm_runtime_put_sync(&pdev->dev);
 	}
 
-	drm_dbg_dp(dp->drm_dev, "After, type=%d\n",
-			dp->msm_dp_display.connector_type);
+	drm_dbg_dp(dp->drm_dev, "After, type=%d sink_count=%d, link_ready=%d\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count,
+			dp->msm_dp_display.link_ready);
 
 	/* uevent will complete connection part */
 	return 0;
@@ -500,8 +504,10 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp, u32 data)
 
 	msm_dp_aux_enable_xfers(dp->aux, false);
 
-	drm_dbg_dp(dp->drm_dev, "Before, type=%d\n",
-			dp->msm_dp_display.connector_type);
+	drm_dbg_dp(dp->drm_dev, "Before, type=%d sink_count=%d, link_ready=%d\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count,
+			dp->msm_dp_display.link_ready);
 
 	if (!dp->msm_dp_display.link_ready)
 		return 0;
@@ -528,8 +534,10 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp, u32 data)
 	/* signal the disconnect event early to ensure proper teardown */
 	msm_dp_display_handle_plugged_change(&dp->msm_dp_display, false);
 
-	drm_dbg_dp(dp->drm_dev, "After, type=%d\n",
-			dp->msm_dp_display.connector_type);
+	drm_dbg_dp(dp->drm_dev, "After, type=%d, sink_count=%d, link_ready=%d\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count,
+			dp->msm_dp_display.link_ready);
 
 	/* uevent will complete disconnection part */
 	pm_runtime_put_sync(&pdev->dev);
@@ -539,13 +547,17 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp, u32 data)
 static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp, u32 data)
 {
 	/* irq_hpd can happen at either connected or disconnected state */
-	drm_dbg_dp(dp->drm_dev, "Before, type=%d\n",
-			dp->msm_dp_display.connector_type);
+	drm_dbg_dp(dp->drm_dev, "Before, type=%d, sink_count=%d, link_ready=%d\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count,
+			dp->msm_dp_display.link_ready);
 
 	msm_dp_display_usbpd_attention_cb(&dp->msm_dp_display.pdev->dev);
 
-	drm_dbg_dp(dp->drm_dev, "After, type=%d\n",
-			dp->msm_dp_display.connector_type);
+	drm_dbg_dp(dp->drm_dev, "After, type=%d, sink_count=%d, link_ready=%d\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count,
+			dp->msm_dp_display.link_ready);
 
 	return 0;
 }
@@ -1540,7 +1552,7 @@ void msm_dp_bridge_hpd_notify(struct drm_bridge *bridge,
 		hpd_link_status = msm_dp_aux_is_link_connected(dp->aux);
 	}
 
-	drm_dbg_dp(dp->drm_dev, "type=%d link connected=0x%x, link_ready=%d, status=%d\n",
+	drm_dbg_dp(dp->drm_dev, "type=%d link hpd_link_status=0x%x, link_ready=%d, status=%d\n",
 		   msm_dp_display->connector_type, hpd_link_status,
 		   msm_dp_display->link_ready, status);
 

-- 
2.50.1