ALSA: es1938: 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/es1938.c b/sound/pci/es1938.c
index 0fc46eb4e251cc81aee07b1dd4bd095eacc0b44c..a01454b545a0755f44705937817b8d741b388cac 100644 (file)
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -1454,7 +1454,6 @@ static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
 
 static int es1938_suspend(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct es1938 *chip = card->private_data;
        unsigned char *s, *d;
@@ -1471,9 +1470,6 @@ static int es1938_suspend(struct device *dev)
                free_irq(chip->irq, chip);
                chip->irq = -1;
        }
-       pci_disable_device(pci);
-       pci_save_state(pci);
-       pci_set_power_state(pci, PCI_D3hot);
        return 0;
 }
 
@@ -1484,14 +1480,6 @@ static int es1938_resume(struct device *dev)
        struct es1938 *chip = card->private_data;
        unsigned char *s, *d;
 
-       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;
-       }
-
        if (request_irq(pci->irq, snd_es1938_interrupt,
                        IRQF_SHARED, KBUILD_MODNAME, chip)) {
                dev_err(dev, "unable to grab IRQ %d, disabling device\n",