diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index b75335508d2c..3eba9ecd24f9 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -399,10 +399,11 @@ 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)
@@ -435,6 +436,7 @@ 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;
 	}
@@ -443,14 +445,17 @@ 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);
 }
 
@@ -518,12 +523,13 @@ 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 &&
@@ -616,6 +622,7 @@ 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;
 	}
 
@@ -624,9 +631,13 @@ 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);
@@ -642,6 +653,7 @@ 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;
 	}
 
@@ -658,7 +670,7 @@ 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:
@@ -846,6 +858,7 @@ 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 a8124e47bf6e..f7f844ff9799 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1295,7 +1295,7 @@ static int pci_pm_runtime_suspend(struct device *dev)
 		 * log level.
 		 */
 		if (error == -EBUSY || error == -EAGAIN) {
-			dev_dbg(dev, "can't suspend now (%ps returned %d)\n",
+			dev_info(dev, "can't suspend now (%ps returned %d)\n",
 				pm->runtime_suspend, error);
 			return error;
 		} else if (error) {
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 99fc0917339b..2f3e4acc0e49 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -960,24 +960,31 @@ static int param_set_xint(const char *val, const struct kernel_param *kp)
 /*
  * power management
  */
-static bool azx_is_pm_ready(struct snd_card *card)
+static bool azx_is_pm_ready(struct device *dev, struct snd_card *card)
 {
 	struct azx *chip;
 	struct hda_intel *hda;
 
-	if (!card)
+	if (!card) {
+		dev_info(dev, "%s: !card\n", __func__);
 		return false;
+	}
 	chip = card->private_data;
 	hda = container_of(chip, struct hda_intel, chip);
-	if (chip->disabled || hda->init_failed || !chip->running)
+	if (chip->disabled || hda->init_failed || !chip->running) {
+		dev_info(dev, "%s: chip->disabled=%d || hda->init_failed=%d || !chip->running=%d\n", __func__, chip->disabled, hda->init_failed, !chip->running);
 		return false;
+	}
 	return true;
 }
 
-static void __azx_runtime_suspend(struct azx *chip)
+static void __azx_runtime_suspend(struct device *dev, struct azx *chip)
 {
+	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);
 	display_power(chip, false);
 }
@@ -1018,13 +1025,13 @@ static int azx_suspend(struct device *dev)
 	struct azx *chip;
 	struct hdac_bus *bus;
 
-	if (!azx_is_pm_ready(card))
+	if (!azx_is_pm_ready(dev, card))
 		return 0;
 
 	chip = card->private_data;
 	bus = azx_bus(chip);
 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-	__azx_runtime_suspend(chip);
+	__azx_runtime_suspend(dev, chip);
 	if (bus->irq >= 0) {
 		free_irq(bus->irq, chip);
 		bus->irq = -1;
@@ -1042,7 +1049,7 @@ static int azx_resume(struct device *dev)
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct azx *chip;
 
-	if (!azx_is_pm_ready(card))
+	if (!azx_is_pm_ready(dev, card))
 		return 0;
 
 	chip = card->private_data;
@@ -1091,17 +1098,23 @@ static int azx_runtime_suspend(struct device *dev)
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct azx *chip;
 
-	if (!azx_is_pm_ready(card))
+	if (!azx_is_pm_ready(dev, card)) {
+		dev_info(dev, "%s: !azx_is_pm_ready(chip)\n", __func__);
 		return 0;
+	}
 	chip = card->private_data;
-	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);
 
-	__azx_runtime_suspend(chip);
+	__azx_runtime_suspend(dev, chip);
+	dev_info(dev, "%s: finished\n", __func__);
 	trace_azx_runtime_suspend(chip);
 	return 0;
 }
@@ -1111,7 +1124,7 @@ static int azx_runtime_resume(struct device *dev)
 	struct snd_card *card = dev_get_drvdata(dev);
 	struct azx *chip;
 
-	if (!azx_is_pm_ready(card))
+	if (!azx_is_pm_ready(dev, card))
 		return 0;
 	chip = card->private_data;
 	if (!azx_has_pm_runtime(chip))
@@ -1132,21 +1145,28 @@ 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=%d || hda->init_failed=%d\n", __func__, chip->disabled, hda->init_failed);
 		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;
 
 	/* ELD notification gets broken when HD-audio bus is off */
-	if (needs_eld_notify_link(hda))
+	if (needs_eld_notify_link(hda)) {
+		dev_info(dev, "%s: needs_eld_notify_link(hda)\n", __func__);
 		return -EBUSY;
+	}
 
 	return 0;
 }