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authorTakashi Iwai <tiwai@suse.de>2015-01-08 12:45:22 +0100
committerTakashi Iwai <tiwai@suse.de>2015-01-09 16:24:19 +0100
commitfaab5223930114b0a33f8c712c14799967342e8c (patch)
tree139f1a1dbfbb3f5c32acfeacf2b6e0d0f2b3e49c /sound/pci/cs4281.c
parent5762fdb5f9b18a5bf8cdbdfbc0c735ad1d88a478 (diff)
downloadlinux-faab5223930114b0a33f8c712c14799967342e8c.tar.bz2
ALSA: cs4281: 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>
Diffstat (limited to 'sound/pci/cs4281.c')
-rw-r--r--sound/pci/cs4281.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 4c49b5c8a7b3..80bb1d11da12 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -2008,7 +2008,6 @@ static int saved_regs[SUSPEND_REGISTERS] = {
static int cs4281_suspend(struct device *dev)
{
- struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct cs4281 *chip = card->private_data;
u32 ulCLK;
@@ -2047,30 +2046,16 @@ static int cs4281_suspend(struct device *dev)
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
ulCLK &= ~CLKCR1_CKRA;
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
-
- pci_disable_device(pci);
- pci_save_state(pci);
- pci_set_power_state(pci, PCI_D3hot);
return 0;
}
static int cs4281_resume(struct device *dev)
{
- struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct cs4281 *chip = card->private_data;
unsigned int i;
u32 ulCLK;
- 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);
-
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
ulCLK |= CLKCR1_CKRA;
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);