From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 10 Nov 2006 11:08:37 +0000 (+0100)
Subject: [PATCH] ALSA: hda-intel - Disable MSI support by default
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=134a11f0c37c043d3ea557ea15b95b084e3cc2c8;p=linux-beck.git

[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>
---

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 138673a907f5..3472d9c4ef1b 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -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.
 
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 0e292dc4fd87..e35cfd326df2 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -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;