Commit be1391c7 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: intel8x0: Support PCM sync_stop 

The driver invokes snd_pcm_period_elapsed() simply from the interrupt
handler.  Set card->sync_irq for enabling the missing sync_stop PCM
operation.  It's cleared and reset dynamically at IRQ re-acquiring for
the PM resume, too.

Link: https://lore.kernel.org/r/20191210063454.31603-25-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b0ad3bbc

sound/pci/intel8x0.c

+3 −1
Original line number Diff line number Diff line
@@ -2592,6 +2592,7 @@ static int intel8x0_suspend(struct device *dev) 
	if (chip->irq >= 0) {

		free_irq(chip->irq, chip);

		chip->irq = -1;

		card->sync_irq = -1;

	}

	return 0;

}
@@ -2612,7 +2613,7 @@ static int intel8x0_resume(struct device *dev) 
		return -EIO;

	}

	chip->irq = pci->irq;

	synchronize_irq(chip->irq);

	card->sync_irq = chip->irq;



	/* re-initialize mixer stuff */

	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
@@ -3092,6 +3093,7 @@ static int snd_intel8x0_create(struct snd_card *card, 
		return -EBUSY;

	}

	chip->irq = pci->irq;

	card->sync_irq = chip->irq;



	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {

		snd_intel8x0_free(chip);

sound/pci/intel8x0m.c

+3 −0
Original line number Diff line number Diff line
@@ -999,6 +999,7 @@ static int intel8x0m_suspend(struct device *dev) 
	if (chip->irq >= 0) {

		free_irq(chip->irq, chip);

		chip->irq = -1;

		card->sync_irq = -1;

	}

	return 0;

}
@@ -1017,6 +1018,7 @@ static int intel8x0m_resume(struct device *dev) 
		return -EIO;

	}

	chip->irq = pci->irq;

	card->sync_irq = chip->irq;

	snd_intel8x0m_chip_init(chip, 0);

	snd_ac97_resume(chip->ac97);
@@ -1191,6 +1193,7 @@ static int snd_intel8x0m_create(struct snd_card *card, 
		return -EBUSY;

	}

	chip->irq = pci->irq;

	card->sync_irq = chip->irq;



	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {

		snd_intel8x0m_free(chip);

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