From e949df0b021cdd503c4e72db12b1b4154a82d698 Mon Sep 17 00:00:00 2001
From: Ivan Orlov <ivan.orlov0322@gmail.com>
Date: Tue, 13 Aug 2024 13:06:58 +0100
Subject: [PATCH] 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
---
 sound/drivers/aloop.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 3650d47b7d58..eb8a68a06c4d 100644
--- 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;