ALSA: opl3sa2: 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.

Link: https://lore.kernel.org/r/20191210063454.31603-45-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/isa/opl3sa2.c b/sound/isa/opl3sa2.c
index 941d0bd..6d19ab4 100644 (file)
--- a/sound/isa/opl3sa2.c
+++ b/sound/isa/opl3sa2.c
@@ -659,6 +659,7 @@ static int snd_opl3sa2_probe(struct snd_card *card, int dev)
                return -ENODEV;
        }
        chip->irq = xirq;
+       card->sync_irq = chip->irq;
        err = snd_wss_create(card,
                             wss_port[dev] + 4, -1,
                             xirq, xdma1, xdma2,