PM / suspend: Print debug messages for device using direct-complete

Commit Message

Rafael J. Wysocki Feb. 11, 2019, 12:17 p.m. UTC

From: Rafael J. Wysocki <[e-mail]>

Devices using the direct-complete optimization are not present it
debug messages printed by the core device suspend and resume code,
which sometimes makes it difficult to diagnose problems related to
them, so add debug messages for those devices.

Signed-off-by: Rafael J. Wysocki <[e-mail]>
---
 drivers/base/power/main.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch

Index: linux-pm/drivers/base/power/main.c
===================================================================
--- linux-pm.orig/drivers/base/power/main.c
+++ linux-pm/drivers/base/power/main.c
@@ -1741,8 +1741,10 @@  static int __device_suspend(struct devic
 	if (dev->power.direct_complete) {
 		if (pm_runtime_status_suspended(dev)) {
 			pm_runtime_disable(dev);
-			if (pm_runtime_status_suspended(dev))
+			if (pm_runtime_status_suspended(dev)) {
+				pm_dev_dbg(dev, state, "direct-complete ");
 				goto Complete;
+			}
 
 			pm_runtime_enable(dev);
 		}