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ALSA: cs4281: Support PCM sync_stop

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The driver invokes snd_pcm_period_elapsed() simply from the interrupt
handler.  Set card->sync_irq for enabling the missing sync_stop PCM
operation, as well as removing the superfluous synchronize_irq()
call.

Link: https://lore.kernel.org/r/20191210063454.31603-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-10 07:34:10 +01:00
parent 3663984e07
commit 5afff8c1bb
1 changed files with 1 additions and 4 deletions
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5
sound/pci/cs4281.c
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@ -1268,9 +1268,6 @@ static int snd_cs4281_free(struct cs4281 *chip)
{
snd_cs4281_free_gameport(chip);
if (chip->irq >= 0)
synchronize_irq(chip->irq);
/* Mask interrupts */
snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff);
/* Stop the DLL Clock logic. */
@ -1352,6 +1349,7 @@ static int snd_cs4281_create(struct snd_card *card,
return -ENOMEM;
}
chip->irq = pci->irq;
card->sync_irq = chip->irq;
tmp = snd_cs4281_chip_init(chip);
if (tmp) {
@ -1600,7 +1598,6 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
BA0_HISR_DMA(1) |
BA0_HISR_DMA(2) |
BA0_HISR_DMA(3)));
synchronize_irq(chip->irq);
return 0;
}