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ALSA: Fix PIT lockup on some chipsets when using the PC-Speaker

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Fix PIT lockup on some chipsets when using the PC-Speaker.

Signed-off-by: Zoltan Devai <zdevai@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Zoltan Devai 2008-11-03 00:30:28 +01:00 committed by Takashi Iwai
parent 219df32fae
commit b02555c384
1 changed files with 2 additions and 2 deletions
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4
sound/drivers/pcsp/pcsp_input.c
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@ -24,13 +24,13 @@ static void pcspkr_do_sound(unsigned int count)
spin_lock_irqsave(&i8253_lock, flags);
if (count) {
/* enable counter 2 */
outb_p(inb_p(0x61) | 3, 0x61);
/* set command for counter 2, 2 byte write */
outb_p(0xB6, 0x43);
/* select desired HZ */
outb_p(count & 0xff, 0x42);
outb((count >> 8) & 0xff, 0x42);
/* enable counter 2 */
outb_p(inb_p(0x61) | 3, 0x61);
} else {
/* disable counter 2 */
outb(inb_p(0x61) & 0xFC, 0x61);