ALSA: fm801: PCI core handles power state for us
There is no need to repeat the work that is already done in the PCI
driver core. The patch removes excerpts from suspend and resume
callbacks.
Note that there is no more calls performed to enable or disable a PCI
device during suspend-resume cycle. Nowadays they seems to be
superflous. Someone can read more in [1].
[1] https://www.kernel.org/doc/ols/2009/ols2009-pages-319-330.pdf
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index dd6f23f..1a0494e 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1375,7 +1375,6 @@
static int snd_fm801_suspend(struct device *dev)
{
- struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct fm801 *chip = card->private_data;
int i;
@@ -1387,29 +1386,15 @@
for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
/* FIXME: tea575x suspend */
-
- pci_disable_device(pci);
- pci_save_state(pci);
- pci_set_power_state(pci, PCI_D3hot);
return 0;
}
static int snd_fm801_resume(struct device *dev)
{
- struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct fm801 *chip = card->private_data;
int i;
- 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_fm801_chip_init(chip, 1);
snd_ac97_resume(chip->ac97);
snd_ac97_resume(chip->ac97_sec);