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ALSA: trident: Simplify PM callbacks

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This is a similar cleanup like the commit [3db084fd0a: 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>
This commit is contained in:
Takashi Iwai 2015-01-08 12:50:18 +01:00
parent 5b3985ecdc
commit 6f9eb021f7
1 changed files with 0 additions and 15 deletions
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15
sound/pci/trident/trident_main.c
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@ -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);