diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 8bef3cb2424d..2ca2bcf68cdb 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -379,10 +379,11 @@ static int rpm_idle(struct device *dev, int rpmflags)
 	int (*callback)(struct device *);
 	int retval;
 
+	dev_info(dev, "%s: begin, rpmflags = %d\n", __func__, rpmflags);
 	trace_rpm_idle_rcuidle(dev, rpmflags);
 	retval = rpm_check_suspend_allowed(dev);
 	if (retval < 0)
-		;	/* Conditions are wrong. */
+		dev_info(dev, "%s: rpm_check_suspend_allowed() returned %d\n", __func__, retval);	/* Conditions are wrong. */
 
 	/* Idle notifications are allowed only in the RPM_ACTIVE state. */
 	else if (dev->power.runtime_status != RPM_ACTIVE)
@@ -415,6 +416,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
 			dev->power.request_pending = true;
 			queue_work(pm_wq, &dev->power.work);
 		}
+		dev_info(dev, "%s: queued async idle\n", __func__);
 		trace_rpm_return_int_rcuidle(dev, _THIS_IP_, 0);
 		return 0;
 	}
@@ -423,14 +425,17 @@ static int rpm_idle(struct device *dev, int rpmflags)
 
 	callback = RPM_GET_CALLBACK(dev, runtime_idle);
 
-	if (callback)
+	if (callback) {
+		dev_info(dev, "%s: before rpm_callback()\n", __func__);
 		retval = __rpm_callback(callback, dev);
-
+		dev_info(dev, "%s: after rpm_callback()\n", __func__);
+	}
 	dev->power.idle_notification = false;
 	wake_up_all(&dev->power.wait_queue);
 
  out:
 	trace_rpm_return_int_rcuidle(dev, _THIS_IP_, retval);
+	dev_info(dev, "%s: end, retval = %d\n", __func__, retval);
 	return retval ? retval : rpm_suspend(dev, rpmflags | RPM_AUTO);
 }
 
@@ -498,12 +503,13 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 	int retval;
 
 	trace_rpm_suspend_rcuidle(dev, rpmflags);
+	dev_info(dev, "%s: begin, rpmflags = %d\n", __func__, rpmflags);
 
  repeat:
 	retval = rpm_check_suspend_allowed(dev);
 
 	if (retval < 0)
-		;	/* Conditions are wrong. */
+		dev_info(dev, "%s: rpm_check_suspend_allowed() returned %d\n", __func__, retval);	/* Conditions are wrong. */
 
 	/* Synchronous suspends are not allowed in the RPM_RESUMING state. */
 	else if (dev->power.runtime_status == RPM_RESUMING &&
@@ -586,6 +592,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 			dev->power.request_pending = true;
 			queue_work(pm_wq, &dev->power.work);
 		}
+		dev_info(dev, "%s: queued async suspend\n", __func__);
 		goto out;
 	}
 
@@ -594,9 +601,13 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 	callback = RPM_GET_CALLBACK(dev, runtime_suspend);
 
 	dev_pm_enable_wake_irq_check(dev, true);
+	dev_info(dev, "%s: before rpm_callback()\n", __func__);
 	retval = rpm_callback(callback, dev);
-	if (retval)
+	dev_info(dev, "%s: after rpm_callback()\n", __func__);
+	if (retval) {
+		dev_info(dev, "%s: rpm_callback() returned %d\n", __func__, retval);
 		goto fail;
+	}
 
  no_callback:
 	__update_runtime_status(dev, RPM_SUSPENDED);
@@ -612,6 +623,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 		dev->power.deferred_resume = false;
 		rpm_resume(dev, 0);
 		retval = -EAGAIN;
+		dev_info(dev, "%s: carried out deferred resume\n", __func__);
 		goto out;
 	}
 
@@ -628,7 +640,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
 
  out:
 	trace_rpm_return_int_rcuidle(dev, _THIS_IP_, retval);
-
+	dev_info(dev, "%s: end, retval = %d\n", __func__, retval);
 	return retval;
 
  fail:
@@ -816,6 +828,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
 	callback = RPM_GET_CALLBACK(dev, runtime_resume);
 
 	dev_pm_disable_wake_irq_check(dev);
+	dev_info(dev, "rpm_resume\n");
 	retval = rpm_callback(callback, dev);
 	if (retval) {
 		__update_runtime_status(dev, RPM_SUSPENDED);
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index b9a131137e64..a1815f06fd5e 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1253,6 +1253,7 @@ static int pci_pm_runtime_suspend(struct device *dev)
 	pci_dev->state_saved = false;
 	error = pm->runtime_suspend(dev);
 	if (error) {
+		dev_info(dev, "pm->runtime_suspend() returned %d\n", error);
 		/*
 		 * -EBUSY and -EAGAIN is used to request the runtime PM core
 		 * to schedule a new suspend, so log the event only with debug
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index b0c8c79848a9..ba693550d873 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1104,27 +1104,38 @@ static int azx_runtime_suspend(struct device *dev)
 	struct azx *chip;
 	struct hda_intel *hda;
 
-	if (!card)
+	if (!card) {
+		dev_info(dev, "%s: !card\n", __func__);
 		return 0;
+	}
 
 	chip = card->private_data;
 	hda = container_of(chip, struct hda_intel, chip);
-	if (chip->disabled || hda->init_failed)
+	if (chip->disabled || hda->init_failed) {
+		dev_info(dev, "%s: chip->disabled || hda->init_failed\n", __func__);
 		return 0;
+	}
 
-	if (!azx_has_pm_runtime(chip))
+	if (!azx_has_pm_runtime(chip)) {
+		dev_info(dev, "%s: !azx_has_pm_runtime(chip)\n", __func__);
 		return 0;
+	}
 
 	/* enable controller wake up event */
+	dev_info(dev, "%s: calling azx_writew()\n", __func__);
 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
 		  STATESTS_INT_MASK);
 
+	dev_info(dev, "%s: calling azx_stop_chip()\n", __func__);
 	azx_stop_chip(chip);
+	dev_info(dev, "%s: calling azx_enter_link_reset()\n", __func__);
 	azx_enter_link_reset(chip);
+	dev_info(dev, "%s: calling azx_clear_irq_pending()\n", __func__);
 	azx_clear_irq_pending(chip);
 	if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 		&& hda->need_i915_power)
 		snd_hdac_display_power(azx_bus(chip), false);
+	dev_info(dev, "%s: finished\n", __func__);
 
 	trace_azx_runtime_suspend(chip);
 	return 0;
@@ -1189,14 +1200,19 @@ static int azx_runtime_idle(struct device *dev)
 	struct azx *chip;
 	struct hda_intel *hda;
 
-	if (!card)
+	if (!card) {
+		dev_info(dev, "%s: !card\n", __func__);
 		return 0;
+	}
 
 	chip = card->private_data;
 	hda = container_of(chip, struct hda_intel, chip);
-	if (chip->disabled || hda->init_failed)
+	if (chip->disabled || hda->init_failed) {
+		dev_info(dev, "%s: chip->disabled || hda->init_failed\n", __func__);
 		return 0;
+	}
 
+	dev_info(dev, "%s: !power_save_controller = %d, !azx_has_pm_runtime(chip) = %d, azx_bus(chip)->codec_powered = %#lx, !chip->running = %d\n", __func__, !power_save_controller, !azx_has_pm_runtime(chip), azx_bus(chip)->codec_powered, !chip->running);
 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
 	    azx_bus(chip)->codec_powered || !chip->running)
 		return -EBUSY;