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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: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-10 07:34:20 +01:00
parent e41dbd2038
commit f36da9406e
2 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/pci/hda/hda_intel.c
View File

@ -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);

4
sound/pci/hda/hda_tegra.c
View File

@ -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);