Commit f36da940 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda: 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/20191210063454.31603-22-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent e41dbd20

sound/pci/hda/hda_intel.c

+3 −1
Original line number Diff line number Diff line
@@ -790,6 +790,7 @@ static int azx_acquire_irq(struct azx *chip, int do_disconnect) 
		return -1;

	}

	bus->irq = chip->pci->irq;

	chip->card->sync_irq = bus->irq;

	pci_intx(chip->pci, !chip->msi);

	return 0;

}
@@ -1028,6 +1029,7 @@ static int azx_suspend(struct device *dev) 
	if (bus->irq >= 0) {

		free_irq(bus->irq, chip);

		bus->irq = -1;

		chip->card->sync_irq = -1;

	}



	if (chip->msi)
@@ -1883,7 +1885,6 @@ static int azx_first_init(struct azx *chip) 
	}



	pci_set_master(pci);

	synchronize_irq(bus->irq);



	gcap = azx_readw(chip, GCAP);

	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
@@ -2042,6 +2043,7 @@ static int disable_msi_reset_irq(struct azx *chip) 


	free_irq(bus->irq, chip);

	bus->irq = -1;

	chip->card->sync_irq = -1;

	pci_disable_msi(chip->pci);

	chip->msi = 0;

	err = azx_acquire_irq(chip, 1);

sound/pci/hda/hda_tegra.c

+1 −3
Original line number Diff line number Diff line
@@ -170,7 +170,6 @@ static int __maybe_unused hda_tegra_runtime_suspend(struct device *dev) 


	if (chip && chip->running) {

		azx_stop_chip(chip);

		synchronize_irq(bus->irq);

		azx_enter_link_reset(chip);

	}

	hda_tegra_disable_clocks(hda);
@@ -298,8 +297,7 @@ static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev) 
		return err;

	}

	bus->irq = irq_id;



	synchronize_irq(bus->irq);

	card->sync_irq = bus->irq;



	gcap = azx_readw(chip, GCAP);

	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);

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