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[PATCH] ALSA: hda-intel - Disable MSI support by default

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Disable MSI support on HD-audio driver as default since there are too
many broken devices.

The module option is changed from disable_msi to enable_msi, too.  For
turning MSI support on, pass enable_msi=1, instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Takashi Iwai 2006-11-10 12:08:37 +01:00 committed by Linus Torvalds
parent c387fd85f8
commit 134a11f0c3
2 changed files with 5 additions and 5 deletions
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2
Documentation/sound/alsa/ALSA-Configuration.txt
View File

@ -753,7 +753,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
single_cmd - Use single immediate commands to communicate with
codecs (for debugging only)
disable_msi - Disable Message Signaled Interrupt (MSI)
enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
This module supports one card and autoprobe.

8
sound/pci/hda/hda_intel.c
View File

@ -55,7 +55,7 @@ static char *model;
static int position_fix;
static int probe_mask = -1;
static int single_cmd;
static int disable_msi;
static int enable_msi;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
@ -69,8 +69,8 @@ module_param(probe_mask, int, 0444);
MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
module_param(single_cmd, bool, 0444);
MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs (for debugging only).");
module_param(disable_msi, int, 0);
MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
module_param(enable_msi, int, 0);
MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
/* just for backward compatibility */
@ -1531,7 +1531,7 @@ 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 = !disable_msi;
chip->msi = enable_msi;
chip->position_fix = position_fix;
chip->single_cmd = single_cmd;