ALSA: echoaudio: Support PCM sync_stop (d4cad99f) · Commits · 戴 / test

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/20191210063454.31603-16-tiwai@suse.de Signed-off-by:

Takashi Iwai <tiwai@suse.de>

sound/pci/echoaudio/echoaudio.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1928,6 +1928,7 @@ static int snd_echo_create(struct snd_card *card,
		return -EBUSY;
		}
		chip->irq = pci->irq;
		card->sync_irq = chip->irq;
		dev_dbg(card->dev, "pci=%p irq=%d subdev=%04x Init hardware...\n",
		chip->pci, chip->irq, chip->pci->subsystem_device);

		@@ -2151,6 +2152,7 @@ static int snd_echo_suspend(struct device *dev)
		chip->dsp_code = NULL;
		free_irq(chip->irq, chip);
		chip->irq = -1;
		chip->card->sync_irq = -1;
		return 0;
		}

		@@ -2204,6 +2206,7 @@ static int snd_echo_resume(struct device *dev)
		return -EBUSY;
		}
		chip->irq = pci->irq;
		chip->card->sync_irq = chip->irq;
		dev_dbg(dev, "resume irq=%d\n", chip->irq);

		#ifdef ECHOCARD_HAS_MIDI

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