ALSA: oxygen: 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.

Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index b67e306024738e3932001e05306708282967e009..366723cf6d7a3de2bff7cd4abbc379e9512823f1 100644 (file)
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -728,7 +728,6 @@ EXPORT_SYMBOL(oxygen_pci_remove);
 #ifdef CONFIG_PM_SLEEP
 static int oxygen_pci_suspend(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct oxygen *chip = card->private_data;
        unsigned int i, saved_interrupt_mask;
@@ -753,10 +752,6 @@ static int oxygen_pci_suspend(struct device *dev)
        flush_work(&chip->spdif_input_bits_work);
        flush_work(&chip->gpio_work);
        chip->interrupt_mask = saved_interrupt_mask;
-
-       pci_disable_device(pci);
-       pci_save_state(pci);
-       pci_set_power_state(pci, PCI_D3hot);
        return 0;
 }
 
@@ -788,20 +783,10 @@ static void oxygen_restore_ac97(struct oxygen *chip, unsigned int codec)
 
 static int oxygen_pci_resume(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct oxygen *chip = card->private_data;
        unsigned int i;
 
-       pci_set_power_state(pci, PCI_D0);
-       pci_restore_state(pci);
-       if (pci_enable_device(pci) < 0) {
-               dev_err(dev, "cannot reenable device");
-               snd_card_disconnect(card);
-               return -EIO;
-       }
-       pci_set_master(pci);
-
        oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
        oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
        for (i = 0; i < OXYGEN_IO_SIZE; ++i)