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author | Takashi Iwai <tiwai@suse.de> | 2006-10-11 18:52:53 +0200 |
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committer | Jaroslav Kysela <perex@suse.cz> | 2006-10-22 10:51:10 +0200 |
commit | 30b35399ceb2398d05837863476dcb12f12f3a82 (patch) | |
tree | 14a7cfad1c5d28d207bb1be8addb86ead33f7b63 /sound/pci/es1938.c | |
parent | c06134d73cdc02bb8ab1fad180f6da1f28d2e049 (diff) | |
download | linux-30b35399ceb2398d05837863476dcb12f12f3a82.tar.gz linux-30b35399ceb2398d05837863476dcb12f12f3a82.tar.bz2 linux-30b35399ceb2398d05837863476dcb12f12f3a82.zip |
[ALSA] Various fixes for suspend/resume of ALSA PCI drivers
- Check the return value of pci_enable_device() and request_irq()
in the suspend. If any error occurs there, disable the device
using snd_card_disconnect().
- Call pci_set_power_state() properly with pci_choose_state().
- Fix the order to call pci_set_power_state().
- Removed obsolete house-made PM codes in some drivers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/pci/es1938.c')
-rw-r--r-- | sound/pci/es1938.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c index 2da988f78ba7..1a8d36df4b5d 100644 --- a/sound/pci/es1938.c +++ b/sound/pci/es1938.c @@ -1481,10 +1481,14 @@ static int es1938_suspend(struct pci_dev *pci, pm_message_t state) *d = snd_es1938_reg_read(chip, *s); outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */ - if (chip->irq >= 0) + if (chip->irq >= 0) { + synchronize_irq(chip->irq); free_irq(chip->irq, chip); + chip->irq = -1; + } pci_disable_device(pci); pci_save_state(pci); + pci_set_power_state(pci, pci_choose_state(pci, state)); return 0; } @@ -1494,10 +1498,22 @@ static int es1938_resume(struct pci_dev *pci) struct es1938 *chip = card->private_data; unsigned char *s, *d; + pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); - pci_enable_device(pci); - request_irq(pci->irq, snd_es1938_interrupt, - IRQF_DISABLED|IRQF_SHARED, "ES1938", chip); + if (pci_enable_device(pci) < 0) { + printk(KERN_ERR "es1938: pci_enable_device failed, " + "disabling device\n"); + snd_card_disconnect(card); + return -EIO; + } + + if (request_irq(pci->irq, snd_es1938_interrupt, + IRQF_DISABLED|IRQF_SHARED, "ES1938", chip)) { + printk(KERN_ERR "es1938: unable to grab IRQ %d, " + "disabling device\n", pci->irq); + snd_card_disconnect(card); + return -EIO; + } chip->irq = pci->irq; snd_es1938_chip_init(chip); @@ -1556,8 +1572,10 @@ static int snd_es1938_free(struct es1938 *chip) snd_es1938_free_gameport(chip); - if (chip->irq >= 0) + if (chip->irq >= 0) { + synchronize_irq(chip->irq); free_irq(chip->irq, chip); + } pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); @@ -1602,6 +1620,7 @@ static int __devinit snd_es1938_create(struct snd_card *card, spin_lock_init(&chip->mixer_lock); chip->card = card; chip->pci = pci; + chip->irq = -1; if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) { kfree(chip); pci_disable_device(pci); |