[ALSA] vx-driver - Fix PM support

Fix PM support on VX drivers (vxpocket and vx222).

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 32 insertions, 1 deletions

diff --git a/sound/pci/vx222/vx222.c b/sound/pci/vx222/vx222.c
index 4ebbabedb3c3..c816ddf1b215 100644
--- a/sound/pci/vx222/vx222.c
+++ b/sound/pci/vx222/vx222.c
@@ -218,6 +218,7 @@ static int __devinit snd_vx222_probe(struct pci_dev *pci,
                 snd_card_free(card);
                 return err;
         }
+        card->private_data = vx;
         vx->core.ibl.size = ibl[dev];
 
         sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %i",
@@ -250,12 +251,42 @@ static void __devexit snd_vx222_remove(struct pci_dev *pci)
         pci_set_drvdata(pci, NULL);
 }
 
+#ifdef CONFIG_PM
+static int snd_vx222_suspend(struct pci_dev *pci, pm_message_t state)
+{
+        struct snd_card *card = pci_get_drvdata(pci);
+        struct snd_vx222 *vx = card->private_data;
+        int err;
+
+        err = snd_vx_suspend(&vx->core, state);
+        pci_set_power_state(pci, PCI_D3hot);
+        pci_disable_device(pci);
+        pci_save_state(pci);
+        return err;
+}
+
+static int snd_vx222_resume(struct pci_dev *pci)
+{
+        struct snd_card *card = pci_get_drvdata(pci);
+        struct snd_vx222 *vx = card->private_data;
+
+        pci_restore_state(pci);
+        pci_enable_device(pci);
+        pci_set_power_state(pci, PCI_D0);
+        pci_set_master(pci);
+        return snd_vx_resume(&vx->core);
+}
+#endif
+
 static struct pci_driver driver = {
         .name = "Digigram VX222",
         .id_table = snd_vx222_ids,
         .probe = snd_vx222_probe,
         .remove = __devexit_p(snd_vx222_remove),
-        SND_PCI_PM_CALLBACKS
+#ifdef CONFIG_PM
+        .suspend = snd_vx222_suspend,
+        .resume = snd_vx222_resume,
+#endif
 };
 
 static int __init alsa_card_vx222_init(void)