[PATCH v4 8/9] drm/msm/dp: Add sink_count to debug logs

[Dmitry Baryshkov]

From: Jessica Zhang <jessica.zhang@xxxxxxxxxxxxxxxx>

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

Signed-off-by: Jessica Zhang <jessica.zhang@xxxxxxxxxxxxxxxx>
[DB: dropped link_ready handling]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index e3b43d73b67a..a1fb9c62bb0e 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -388,8 +388,9 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp)
 	int ret;
 	struct platform_device *pdev = dp->msm_dp_display.pdev;
 
-	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\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count);
 
 	if (dp->msm_dp_display.link_ready)
 		return 0;
@@ -411,8 +412,9 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp)
 		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\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count);
 
 	/* uevent will complete connection part */
 	return 0;
@@ -440,8 +442,9 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp)
 
 	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\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count);
 
 	if (!dp->msm_dp_display.link_ready)
 		return 0;
@@ -465,8 +468,9 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp)
 	/* 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\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count);
 
 	/* uevent will complete disconnection part */
 	pm_runtime_put_sync(&pdev->dev);
@@ -479,8 +483,9 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp)
 	int rc = 0;
 
 	/* 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\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count);
 
 	/* check for any test request issued by sink */
 	rc = msm_dp_link_process_request(dp->link);
@@ -493,8 +498,9 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp)
 			rc = msm_dp_display_handle_irq_hpd(dp);
 	}
 
-	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\n",
+			dp->msm_dp_display.connector_type,
+			dp->link->sink_count);
 
 	return rc;
 }

-- 
2.47.3