ALSA: hda - Fix runtime PM check

The device can support runtime PM no matter whether it support
signal wakeup or not. For some chips like Haswell which doesnot
support PME by default, this patch let haswell Display HD-A controller
enter runtime suspend, and bring more power saving whith power-well
feature enabled.

Signed-off-by: Wang Xingchao <xingchao.wang@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 8 insertions, 6 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index de18722c4873..aa4d4d716704 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -3120,8 +3120,13 @@ static int register_vga_switcheroo(struct azx *chip)
  */
 static int azx_free(struct azx *chip)
 {
+        struct pci_dev *pci = chip->pci;
         int i;
 
+        if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
+                        && chip->running)
+                pm_runtime_get_noresume(&pci->dev);
+
         azx_del_card_list(chip);
 
         azx_notifier_unregister(chip);
@@ -3755,9 +3760,6 @@ static int azx_probe(struct pci_dev *pci,
                         goto out_free;
         }
 
-        if (pci_dev_run_wake(pci))
-                pm_runtime_put_noidle(&pci->dev);
-
         dev++;
         complete_all(&chip->probe_wait);
         return 0;
@@ -3770,6 +3772,7 @@ out_free:
 
 static int azx_probe_continue(struct azx *chip)
 {
+        struct pci_dev *pci = chip->pci;
         int dev = chip->dev_index;
         int err;
 
@@ -3817,6 +3820,8 @@ static int azx_probe_continue(struct azx *chip)
         power_down_all_codecs(chip);
         azx_notifier_register(chip);
         azx_add_card_list(chip);
+        if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
+                pm_runtime_put_noidle(&pci->dev);
 
         return 0;
 
@@ -3829,9 +3834,6 @@ static void azx_remove(struct pci_dev *pci)
 {
         struct snd_card *card = pci_get_drvdata(pci);
 
-        if (pci_dev_run_wake(pci))
-                pm_runtime_get_noresume(&pci->dev);
-
         if (card)
                 snd_card_free(card);
         pci_set_drvdata(pci, NULL);