ALSA: pcxhr: Support PCM sync_stop

The driver invokes snd_pcm_period_elapsed() simply from the threaded
interrupt handler.  Set card->sync_irq for enabling the missing
sync_stop PCM operation.

Link: https://lore.kernel.org/r/20191210063454.31603-52-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index e691c37..f433083 100644 (file)
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -1190,6 +1190,7 @@ static int pcxhr_create(struct pcxhr_mgr *mgr,
        chip->card = card;
        chip->chip_idx = idx;
        chip->mgr = mgr;
+       card->sync_irq = mgr->irq;
 
        if (idx < mgr->playback_chips)
                /* stereo or mono streams */