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[ALSA] azt2320 - Add PM support 

Modules: AZT2320 driver

Add PM support to azt2320 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-17 17:04:12 +01:00 committed by Jaroslav Kysela
parent 480615f33f
commit b6cc25cae3
1 changed files with 38 additions and 10 deletions
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48
sound/isa/azt2320.c
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@ -93,6 +93,7 @@ struct snd_card_azt2320 {
int dev_no;
struct pnp_dev *dev;
struct pnp_dev *devmpu;
struct snd_cs4231 *chip;
};
static struct pnp_card_device_id snd_azt2320_pnpids[] = {
@ -329,32 +330,59 @@ static int __devinit snd_azt2320_pnp_detect(struct pnp_card_link *card,
static void __devexit snd_azt2320_pnp_remove(struct pnp_card_link * pcard)
{
struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
snd_card_disconnect(card);
snd_card_free_in_thread(card);
snd_card_free(pnp_get_card_drvdata(pcard));
pnp_set_card_drvdata(pcard, NULL);
}
#ifdef CONFIG_PM
static int snd_azt2320_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
{
struct snd_card *card = pnp_get_card_drvdata(pcard);
struct snd_card_azt2320 *acard = card->private_data;
struct snd_cs4231 *chip = acard->chip;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
chip->suspend(chip);
return 0;
}
static int snd_azt2320_pnp_resume(struct pnp_card_link *pcard)
{
struct snd_card *card = pnp_get_card_drvdata(pcard);
struct snd_card_azt2320 *acard = card->private_data;
struct snd_cs4231 *chip = acard->chip;
chip->resume(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
static struct pnp_card_driver azt2320_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "azt2320",
.id_table = snd_azt2320_pnpids,
.probe = snd_azt2320_pnp_detect,
.remove = __devexit_p(snd_azt2320_pnp_remove),
#ifdef CONFIG_PM
.suspend = snd_azt2320_pnp_suspend,
.resume = snd_azt2320_pnp_resume,
#endif
};
static int __init alsa_card_azt2320_init(void)
{
int cards = 0;
int cards;
cards += pnp_register_card_driver(&azt2320_pnpc_driver);
#ifdef MODULE
if (!cards) {
cards = pnp_register_card_driver(&azt2320_pnpc_driver);
if (cards <= 0) {
pnp_unregister_card_driver(&azt2320_pnpc_driver);
#ifdef MODULE
snd_printk(KERN_ERR "no AZT2320 based soundcards found\n");
}
#endif
return cards ? 0 : -ENODEV;
return -ENODEV;
}
return 0;
}
static void __exit alsa_card_azt2320_exit(void)