drm/msm/dp: add drm debug logs to dp_pm_resume/suspend

Changes in V2:
-- correct Fixes text
-- drop commit text

Fixes: 601f047 ("drm/msm/dp: add logs across DP driver for ease of debugging")
Signed-off-by: Kuogee Hsieh <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Clark <[email protected]>

Author: Kuogee Hsieh

drivers/gpu/drm/msm/dp/dp_display.c

@@ -1280,6 +1280,9 @@ static int dp_pm_resume(struct device *dev)
 
 	mutex_lock(&dp->event_mutex);
 
+	DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n",
+			dp->core_initialized, dp_display->power_on);
+
 	/* start from disconnected state */
 	dp->hpd_state = ST_DISCONNECTED;
 
@@ -1311,6 +1314,10 @@ static int dp_pm_resume(struct device *dev)
 	else
 		dp->dp_display.is_connected = false;
 
+	DRM_DEBUG_DP("After, sink_count=%d is_connected=%d core_inited=%d power_on=%d\n",
+			dp->link->sink_count, dp->dp_display.is_connected,
+			dp->core_initialized, dp_display->power_on);
+
 	mutex_unlock(&dp->event_mutex);
 
 	return 0;
@@ -1326,6 +1333,9 @@ static int dp_pm_suspend(struct device *dev)
 
 	mutex_lock(&dp->event_mutex);
 
+	DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n",
+			dp->core_initialized, dp_display->power_on);
+
 	if (dp->core_initialized == true) {
 		/* mainlink enabled */
 		if (dp_power_clk_status(dp->power, DP_CTRL_PM))
@@ -1339,6 +1349,9 @@ static int dp_pm_suspend(struct device *dev)
 	/* host_init will be called at pm_resume */
 	dp->core_initialized = false;
 
+	DRM_DEBUG_DP("After, core_inited=%d power_on=%d\n",
+			dp->core_initialized, dp_display->power_on);
+
 	mutex_unlock(&dp->event_mutex);
 
 	return 0;