From 38c0a158ee23027e6a4fe47311e05d9c34c94da4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 17 Nov 2005 16:08:11 +0100
Subject: [PATCH] [ALSA] cs4281 - Fix PM support
Modules: CS4281 driver
Fix PM support on CS4281 driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/pci/cs4281.c | 44 ++++++++++++++++++++++----------------------
1 file changed, 22 insertions(+), 22 deletions(-)
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 116cdc1c5528..4f65ec56bf35 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -1339,10 +1339,6 @@ static int snd_cs4281_dev_free(struct snd_device *device)
}
static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */
-#ifdef CONFIG_PM
-static int cs4281_suspend(struct snd_card *card, pm_message_t state);
-static int cs4281_resume(struct snd_card *card);
-#endif
static int __devinit snd_cs4281_create(struct snd_card *card,
struct pci_dev *pci,
@@ -1411,8 +1407,6 @@ static int __devinit snd_cs4281_create(struct snd_card *card,
snd_cs4281_proc_init(chip);
- snd_card_set_pm_callback(card, cs4281_suspend, cs4281_resume, chip);
-
snd_card_set_dev(card, &pci->dev);
*rchip = chip;
@@ -1936,6 +1930,7 @@ static int __devinit snd_cs4281_probe(struct pci_dev *pci,
snd_card_free(card);
return err;
}
+ card->private_data = chip;
if ((err = snd_cs4281_mixer(chip)) < 0) {
snd_card_free(card);
@@ -2007,18 +2002,18 @@ static int saved_regs[SUSPEND_REGISTERS] = {
#define CLKCR1_CKRA 0x00010000L
-static int cs4281_suspend(struct snd_card *card, pm_message_t state)
+static int cs4281_suspend(struct pci_dev *pci, pm_message_t state)
{
- struct cs4281 *chip = card->pm_private_data;
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct cs4281 *chip = card->private_data;
u32 ulCLK;
unsigned int i;
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
- if (chip->ac97)
- snd_ac97_suspend(chip->ac97);
- if (chip->ac97_secondary)
- snd_ac97_suspend(chip->ac97_secondary);
+ snd_ac97_suspend(chip->ac97);
+ snd_ac97_suspend(chip->ac97_secondary);
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
ulCLK |= CLKCR1_CKRA;
@@ -2048,18 +2043,21 @@ static int cs4281_suspend(struct snd_card *card, pm_message_t state)
ulCLK &= ~CLKCR1_CKRA;
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
- pci_disable_device(chip->pci);
+ pci_disable_device(pci);
+ pci_save_state(pci);
return 0;
}
-static int cs4281_resume(struct snd_card *card)
+static int cs4281_resume(struct pci_dev *pci)
{
- struct cs4281 *chip = card->pm_private_data;
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct cs4281 *chip = card->private_data;
unsigned int i;
u32 ulCLK;
- pci_enable_device(chip->pci);
- pci_set_master(chip->pci);
+ pci_restore_state(pci);
+ pci_enable_device(pci);
+ pci_set_master(pci);
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
ulCLK |= CLKCR1_CKRA;
@@ -2072,15 +2070,14 @@ static int cs4281_resume(struct snd_card *card)
if (saved_regs[i])
snd_cs4281_pokeBA0(chip, saved_regs[i], chip->suspend_regs[i]);
- if (chip->ac97)
- snd_ac97_resume(chip->ac97);
- if (chip->ac97_secondary)
- snd_ac97_resume(chip->ac97_secondary);
+ snd_ac97_resume(chip->ac97);
+ snd_ac97_resume(chip->ac97_secondary);
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
ulCLK &= ~CLKCR1_CKRA;
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* CONFIG_PM */
@@ -2090,7 +2087,10 @@ static struct pci_driver driver = {
.id_table = snd_cs4281_ids,
.probe = snd_cs4281_probe,
.remove = __devexit_p(snd_cs4281_remove),
- SND_PCI_PM_CALLBACKS
+#ifdef CONFIG_PM
+ .suspend = cs4281_suspend,
+ .resume = cs4281_resume,
+#endif
};
static int __init alsa_card_cs4281_init(void)