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SubjectApplied "ASoC: dapm: allow muxes to force a disconnect" to the asoc tree
The patch

ASoC: dapm: allow muxes to force a disconnect

has been applied to the asoc tree at for-5.3

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
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From c3456a4b2142550944f73a87a8f338074508b249 Mon Sep 17 00:00:00 2001
From: Jerome Brunet <>
Date: Wed, 15 May 2019 15:18:55 +0200
Subject: [PATCH] ASoC: dapm: allow muxes to force a disconnect

Let soc_dapm_mux_update_power() accept NULL as 'e' enum.

It makes the code a bit more robust and, more importantly, let the calling
mux force a disconnect of the output path if necessary.

This is useful if the dapm elements following the mux must be off
while updating the mux, to avoid glitches or force a (re)configuration.

Signed-off-by: Jerome Brunet <>
Tested-by: Neil Armstrong <>
Tested-by: Kevin Hilman <>
Signed-off-by: Mark Brown <>
sound/soc/soc-dapm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 81a7a12196ff..a4d6c068b545 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2245,7 +2245,7 @@ static int soc_dapm_mux_update_power(struct snd_soc_card *card,
dapm_kcontrol_for_each_path(path, kcontrol) {
found = 1;
/* we now need to match the string in the enum to the path */
- if (!(strcmp(path->name, e->texts[mux])))
+ if (e && !(strcmp(path->name, e->texts[mux])))
connect = true;
connect = false;
 \ /
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