Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[PATCH] ALSA: hda-intel - Disable MSI support by default
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>
authored by
Takashi Iwai
and committed by
Linus Torvalds
134a11f0
c387fd85
+5
-5
+1
-1
Documentation/sound/alsa/ALSA-Configuration.txt
+1
-1
Documentation/sound/alsa/ALSA-Configuration.txt
···
753
753
position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
754
754
single_cmd - Use single immediate commands to communicate with
755
755
codecs (for debugging only)
756
-
disable_msi - Disable Message Signaled Interrupt (MSI)
756
+
enable_msi - Enable Message Signaled Interrupt (MSI) (default = off)
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758
This module supports one card and autoprobe.
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759
+4
-4
sound/pci/hda/hda_intel.c
+4
-4
sound/pci/hda/hda_intel.c
···
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static int position_fix;
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static int probe_mask = -1;
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static int single_cmd;
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-
static int disable_msi;
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+
static int enable_msi;
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module_param(index, int, 0444);
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MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
···
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MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
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module_param(single_cmd, bool, 0444);
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MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs (for debugging only).");
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-
module_param(disable_msi, int, 0);
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-
MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
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+
module_param(enable_msi, int, 0);
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+
MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
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/* just for backward compatibility */
···
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1531
chip->pci = pci;
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1532
chip->irq = -1;
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1533
chip->driver_type = driver_type;
1534
-
chip->msi = !disable_msi;
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+
chip->msi = enable_msi;
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1535
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1536
chip->position_fix = position_fix;
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1537
chip->single_cmd = single_cmd;