[ALSA] hda-intel - Fix suspend/resume with MSI

Fixed suspend/resume with MSI enablement.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 10 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 6309e0c67e6a..4d2df771112e 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1381,6 +1381,10 @@ static int azx_suspend(struct pci_dev *pci, pm_message_t state)
                 snd_pcm_suspend_all(chip->pcm[i]);
         snd_hda_suspend(chip->bus, state);
         azx_free_cmd_io(chip);
+        if (chip->irq >= 0)
+                free_irq(chip->irq, chip);
+        if (!disable_msi)
+                pci_disable_msi(chip->pci);
         pci_disable_device(pci);
         pci_save_state(pci);
         return 0;
@@ -1393,6 +1397,12 @@ static int azx_resume(struct pci_dev *pci)
 
         pci_restore_state(pci);
         pci_enable_device(pci);
+        if (!disable_msi)
+                pci_enable_msi(pci);
+        /* FIXME: need proper error handling */
+        request_irq(pci->irq, azx_interrupt, IRQF_DISABLED|IRQF_SHARED,
+                    "HDA Intel", chip);
+        chip->irq = pci->irq;
         pci_set_master(pci);
         azx_init_chip(chip);
         snd_hda_resume(chip->bus);