[ALSA] nm256-intel - Fix PM support
Takashi Iwai [Thu, 17 Nov 2005 15:11:24 +0000 (16:11 +0100)]
Modules: NM256 driver

Fix PM support on NM256 driver.

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

sound/pci/nm256/nm256.c

index 99ec1c1..0d0ff54 100644 (file)
@@ -1308,24 +1308,29 @@ snd_nm256_peek_for_sig(struct nm256 *chip)
  * APM event handler, so the card is properly reinitialized after a power
  * event.
  */
-static int nm256_suspend(struct snd_card *card, pm_message_t state)
+static int nm256_suspend(struct pci_dev *pci, pm_message_t state)
 {
-       struct nm256 *chip = card->pm_private_data;
+       struct snd_card *card = pci_get_drvdata(pci);
+       struct nm256 *chip = card->private_data;
 
+       snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
        snd_pcm_suspend_all(chip->pcm);
        snd_ac97_suspend(chip->ac97);
        chip->coeffs_current = 0;
-       pci_disable_device(chip->pci);
+       pci_disable_device(pci);
+       pci_save_state(pci);
        return 0;
 }
 
-static int nm256_resume(struct snd_card *card)
+static int nm256_resume(struct pci_dev *pci)
 {
-       struct nm256 *chip = card->pm_private_data;
+       struct snd_card *card = pci_get_drvdata(pci);
+       struct nm256 *chip = card->private_data;
        int i;
 
        /* Perform a full reset on the hardware */
-       pci_enable_device(chip->pci);
+       pci_restore_state(pci);
+       pci_enable_device(pci);
        snd_nm256_init_chip(chip);
 
        /* restore ac97 */
@@ -1340,6 +1345,7 @@ static int nm256_resume(struct snd_card *card)
                }
        }
 
+       snd_power_change_state(card, SNDRV_CTL_POWER_D0);
        return 0;
 }
 #endif /* CONFIG_PM */
@@ -1524,8 +1530,6 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
 
        // pci_set_master(pci); /* needed? */
        
-       snd_card_set_pm_callback(card, nm256_suspend, nm256_resume, chip);
-
        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
                goto __error;
 
@@ -1625,6 +1629,7 @@ static int __devinit snd_nm256_probe(struct pci_dev *pci,
                snd_card_free(card);
                return err;
        }
+       card->private_data = chip;
 
        if (reset_workaround) {
                snd_printdd(KERN_INFO "nm256: reset_workaround activated\n");
@@ -1668,7 +1673,10 @@ static struct pci_driver driver = {
        .id_table = snd_nm256_ids,
        .probe = snd_nm256_probe,
        .remove = __devexit_p(snd_nm256_remove),
-       SND_PCI_PM_CALLBACKS
+#ifdef CONFIG_PM
+       .suspend = nm256_suspend,
+       .resume = nm256_resume,
+#endif
 };