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[ALSA] Fix 'semaphore is not ready' problem with snd-intel8x0m

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Intel8x0-modem driver
With some intel based ac97 modems codec access semaphore is not cleared
after 0x54 AC97 register (GPIO_STATUS) reads. This may causes problems
with newly applied modem mixer (Off-hook switch) and in other cases.

Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Sasha Khapyorsky 2005-04-07 20:21:21 +02:00 committed by Jaroslav Kysela
parent 5f0dccf850
commit 2c56c47f67
1 changed files with 2 additions and 0 deletions
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2
sound/pci/intel8x0m.c
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@ -500,6 +500,8 @@ static unsigned short snd_intel8x0_codec_read(ac97_t *ac97,
res = 0xffff;
}
}
if (reg == AC97_GPIO_STATUS)
iagetword(chip, 0); /* clear semaphore */
return res;
}