From 3bbbb7728fc853d71dbce4073fef9f281fbfb4dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EA=B2=BD=ED=83=9D?= <gt82.lee@samsung.com>
Date: Tue, 31 Mar 2020 16:55:16 +0900
Subject: [PATCH] ASoC: dapm: connect virtual mux with default value
Git-commit: 3bbbb7728fc853d71dbce4073fef9f281fbfb4dd
Patch-mainline: v5.7-rc1
References: bsc#1051510

Since a virtual mixer has no backing registers
to decide which path to connect,
it will try to match with initial state.
This is to ensure that the default mixer choice will be
correctly powered up during initialization.
Invert flag is used to select initial state of the virtual switch.
Since actual hardware can't be disconnected by virtual switch,
connected is better choice as initial state in many cases.

Signed-off-by: Gyeongtaek Lee <gt82.lee@samsung.com>
Link: https://lore.kernel.org/r/01a301d60731$b724ea10$256ebe30$@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/soc-dapm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 04da7928c873..679ed60d850e 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -802,7 +802,13 @@ static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i,
 			val = max - val;
 		p->connect = !!val;
 	} else {
-		p->connect = 0;
+		/* since a virtual mixer has no backing registers to
+		 * decide which path to connect, it will try to match
+		 * with initial state.  This is to ensure
+		 * that the default mixer choice will be
+		 * correctly powered up during initialization.
+		 */
+		p->connect = invert;
 	}
 }
 
-- 
2.16.4