ALSA: ctxfi - Add PM support

Added the suspend/resume support to ctxfi driver.

The team tested on the following seems ok:
  AMD Athlon 64 3500+ / ASUS A8N-E / 512MB DDR ATI / Radeon X1300
  20k1 & 20k2 cards

Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com>
Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 22 insertions, 0 deletions

diff --git a/sound/pci/ctxfi/xfi.c b/sound/pci/ctxfi/xfi.c
index 2d3dd89af151..76541748e7bc 100644
--- a/sound/pci/ctxfi/xfi.c
+++ b/sound/pci/ctxfi/xfi.c
@@ -121,11 +121,33 @@ static void __devexit ct_card_remove(struct pci_dev *pci)
         pci_set_drvdata(pci, NULL);
 }
 
+#ifdef CONFIG_PM
+static int ct_card_suspend(struct pci_dev *pci, pm_message_t state)
+{
+        struct snd_card *card = pci_get_drvdata(pci);
+        struct ct_atc *atc = card->private_data;
+
+        return atc->suspend(atc, state);
+}
+
+static int ct_card_resume(struct pci_dev *pci)
+{
+        struct snd_card *card = pci_get_drvdata(pci);
+        struct ct_atc *atc = card->private_data;
+
+        return atc->resume(atc);
+}
+#endif
+
 static struct pci_driver ct_driver = {
         .name = "SB-XFi",
         .id_table = ct_pci_dev_ids,
         .probe = ct_card_probe,
         .remove = __devexit_p(ct_card_remove),
+#ifdef CONFIG_PM
+        .suspend = ct_card_suspend,
+        .resume = ct_card_resume,
+#endif
 };
 
 static int __init ct_card_init(void)