ALSA: aloop: Allow using global timers

Allow using global timers as a timer source when card id is equal to -1
in the timer_source parameter.

Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240813120701.171743-2-ivan.orlov0322@gmail.com

diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 3650d47b7d581608a48ab2eeb09bb32db8631544..eb8a68a06c4d9c823a617a86729083fed3b55078 100644 (file)
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -1129,6 +1129,8 @@ static int loopback_parse_timer_id(const char *str,
                        }
                }
        }
+       if (card_idx == -1)
+               tid->dev_class = SNDRV_TIMER_CLASS_GLOBAL;
        if (!err && tid) {
                tid->card = card_idx;
                tid->device = dev;