From 1478eb63654b367399f79edc0734a3bda1b0324b Mon Sep 17 00:00:00 2001 From: Takashi Iwai <tiwai@suse.de> Date: Tue, 10 Dec 2019 07:34:27 +0100 Subject: [PATCH] ALSA: nm256: 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/20191210063454.31603-29-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/pci/nm256/nm256.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c index 02767f33deb7..ac194485aa78 100644 --- a/sound/pci/nm256/nm256.c +++ b/sound/pci/nm256/nm256.c @@ -460,6 +460,7 @@ static int snd_nm256_acquire_irq(struct nm256 *chip) return -EBUSY; } chip->irq = chip->pci->irq; + chip->card->sync_irq = chip->irq; } chip->irq_acks++; mutex_unlock(&chip->irq_mutex); @@ -475,6 +476,7 @@ static void snd_nm256_release_irq(struct nm256 *chip) if (chip->irq_acks == 0 && chip->irq >= 0) { free_irq(chip->irq, chip); chip->irq = -1; + chip->card->sync_irq = -1; } mutex_unlock(&chip->irq_mutex); } -- 2.30.9