ALSA: emu10k1: Simplify PM callbacks
authorTakashi Iwai <tiwai@suse.de>
Thu, 8 Jan 2015 11:46:58 +0000 (12:46 +0100)
committerTakashi Iwai <tiwai@suse.de>
Fri, 9 Jan 2015 15:24:21 +0000 (16:24 +0100)
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>
sound/pci/emu10k1/emu10k1.c

index 4c171636efcd6cbb76a3e593f4e4e1ee3fa5f509..1d262ba2a44a42002785b4aeaed2842b0279029a 100644 (file)
@@ -210,7 +210,6 @@ static void snd_card_emu10k1_remove(struct pci_dev *pci)
 #ifdef CONFIG_PM_SLEEP
 static int snd_emu10k1_suspend(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct snd_emu10k1 *emu = card->private_data;
 
@@ -232,28 +231,14 @@ static int snd_emu10k1_suspend(struct device *dev)
                snd_p16v_suspend(emu);
 
        snd_emu10k1_done(emu);
-
-       pci_disable_device(pci);
-       pci_save_state(pci);
-       pci_set_power_state(pci, PCI_D3hot);
        return 0;
 }
 
 static int snd_emu10k1_resume(struct device *dev)
 {
-       struct pci_dev *pci = to_pci_dev(dev);
        struct snd_card *card = dev_get_drvdata(dev);
        struct snd_emu10k1 *emu = 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);
-
        snd_emu10k1_resume_init(emu);
        snd_emu10k1_efx_resume(emu);
        snd_ac97_resume(emu->ac97);