ALSA: nm256: Simplify PM callbacks

This is a similar cleanup like the commit [3db084fd0af5: ALSA: fm801:
PCI core handles power state for us].

Since pci_set_power_state(), pci_save_state() and pci_restore_state()
are already done in the PCI core side, so we don't need to it doubly.

Also, pci_enable_device(), pci_disable_device() and pci_set_master()
calls in PM callbacks are superfluous nowadays, too, so get rid of
them as well.

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

diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 4e41a4e29a1e4dd48fb11ec4981b0da8a90c0b56..8598f2b47eb3b1eb2d07c9eb348e22ffc4b268b1 100644 (file)
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -1392,7 +1392,6 @@ snd_nm256_peek_for_sig(struct nm256 *chip)
  */
 static int nm256_suspend(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct nm256 *chip = card->private_data;
 
@@ -1400,15 +1399,11 @@ static int nm256_suspend(struct device *dev)
        snd_pcm_suspend_all(chip->pcm);
        snd_ac97_suspend(chip->ac97);
        chip->coeffs_current = 0;
-       pci_disable_device(pci);
-       pci_save_state(pci);
-       pci_set_power_state(pci, PCI_D3hot);
        return 0;
 }
 
 static int nm256_resume(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct nm256 *chip = card->private_data;
        int i;
@@ -1416,15 +1411,6 @@ static int nm256_resume(struct device *dev)
        /* Perform a full reset on the hardware */
        chip->in_resume = 1;
 
-       pci_set_power_state(pci, PCI_D0);
-       pci_restore_state(pci);
-       if (pci_enable_device(pci) < 0) {
-               dev_err(dev, "pci_enable_device failed, disabling device\n");
-               snd_card_disconnect(card);
-               return -EIO;
-       }
-       pci_set_master(pci);
-
        snd_nm256_init_chip(chip);
 
        /* restore ac97 */