diff options
| author | Takashi Iwai <tiwai@suse.de> | 2009-08-11 14:21:26 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-08-11 14:25:46 +0200 |
| commit | 4d8e22e0f6aacb365db2cb9bf69e38310b37f418 (patch) | |
| tree | f6606ad3d83c623834a3aaa13d69c546034f5a42 /sound/pci | |
| parent | b59bdf3b0ca11bfc6a539012431d751deaa65b32 (diff) | |
ALSA: hda - Add a white-list for MSI option
Created a white-list to enable MSI since some devices require MSI
explicitly due to BIOS/ACPI problems. Simply using a quirk list.
As the first case, take HP Compaq CQ40.
Reference: Novell bnc#529971
https://bugzilla.novell.com/show_bug.cgi?id=529971
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 754de4f82013..20a66f85f0a4 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2299,6 +2299,30 @@ static void __devinit check_probe_mask(struct azx *chip, int dev) } } +/* + * white-list for enable_msi + */ +static struct snd_pci_quirk msi_white_list[] __devinitdata = { + SND_PCI_QUIRK(0x103c, 0x3607, "HP Compa CQ40", 1), + {} +}; + +static void __devinit check_msi(struct azx *chip) +{ + const struct snd_pci_quirk *q; + + chip->msi = enable_msi; + if (chip->msi) + return; + q = snd_pci_quirk_lookup(chip->pci, msi_white_list); + if (q) { + printk(KERN_INFO + "hda_intel: msi for device %04x:%04x set to %d\n", + q->subvendor, q->subdevice, q->value); + chip->msi = q->value; + } +} + /* * constructor @@ -2333,7 +2357,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, chip->pci = pci; chip->irq = -1; chip->driver_type = driver_type; - chip->msi = enable_msi; + check_msi(chip); chip->dev_index = dev; INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work); |