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ALSA: vx222: 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>
This commit is contained in:
Takashi Iwai 2015-01-08 12:50:48 +01:00
parent c11b4c68f4
commit de0c869c83
1 changed files with 1 additions and 16 deletions
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17
sound/pci/vx222/vx222.c
View File

@ -259,32 +259,17 @@ static void snd_vx222_remove(struct pci_dev *pci)
#ifdef CONFIG_PM_SLEEP
static int snd_vx222_suspend(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct snd_vx222 *vx = card->private_data;
int err;
err = snd_vx_suspend(&vx->core);
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, PCI_D3hot);
return err;
return snd_vx_suspend(&vx->core);
}
static int snd_vx222_resume(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct snd_vx222 *vx = 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);
return snd_vx_resume(&vx->core);
}