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[ALSA] cmipci - Disable integrated mpu401 as default

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Enable the support of mpu401 PCI port only when mpu_port=1 module
option is given, i.e. disabled as default.
It turned out that the check of integrated midi port isn't perfect
and caused hang-ups on some boards.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2006-05-04 14:36:08 +02:00 committed by Jaroslav Kysela
parent a7306336e8
commit cab5c4c97a
2 changed files with 4 additions and 2 deletions
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4
Documentation/sound/alsa/ALSA-Configuration.txt
View file

@ -366,7 +366,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
Module for C-Media CMI8338 and 8738 PCI sound cards.
mpu_port - 0x300,0x310,0x320,0x330, 0 = disable (default)
mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
1 = integrated PCI port,
0 = disable (default)
fm_port - 0x388 (default), 0 = disable (default)
soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
(default = 1)

2
sound/pci/cmipci.c
View file

@ -2932,7 +2932,7 @@ static int __devinit snd_cmipci_create(struct snd_card *card, struct pci_dev *pc
}
integrated_midi = snd_cmipci_read_b(cm, CM_REG_MPU_PCI) != 0xff;
if (integrated_midi)
if (integrated_midi && mpu_port[dev] == 1)
iomidi = cm->iobase + CM_REG_MPU_PCI;
else {
iomidi = mpu_port[dev];