ALSA: trident: 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/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 57cd757acfe7a96cb92aadc48e5ffbfaaaa56533..072824982ff8e3306dce9a1851947831fe3ee466 100644 (file)
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -3926,7 +3926,6 @@ static void snd_trident_clear_voices(struct snd_trident * trident, unsigned shor
 #ifdef CONFIG_PM_SLEEP
 static int snd_trident_suspend(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct snd_trident *trident = card->private_data;
 
@@ -3938,28 +3937,14 @@ static int snd_trident_suspend(struct device *dev)
 
        snd_ac97_suspend(trident->ac97);
        snd_ac97_suspend(trident->ac97_sec);
-
-       pci_disable_device(pci);
-       pci_save_state(pci);
-       pci_set_power_state(pci, PCI_D3hot);
        return 0;
 }
 
 static int snd_trident_resume(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct snd_trident *trident = card->private_data;
 
-       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);
-
        switch (trident->device) {
        case TRIDENT_DEVICE_ID_DX:
                snd_trident_4d_dx_init(trident);