Applied "ASoC: dapm: connect virtual mux with default value" to the asoc tree
Mark Brown
broonie at kernel.org
Tue Mar 31 20:24:09 CEST 2020
The patch
ASoC: dapm: connect virtual mux with default value
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
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
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
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Thanks,
Mark
>From 3bbbb7728fc853d71dbce4073fef9f281fbfb4dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EA=B2=BD=ED=83=9D?= <gt82.lee at samsung.com>
Date: Tue, 31 Mar 2020 16:55:16 +0900
Subject: [PATCH] ASoC: dapm: connect virtual mux with default value
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 at samsung.com>
Link: https://lore.kernel.org/r/01a301d60731$b724ea10$256ebe30$@samsung.com
Signed-off-by: Mark Brown <broonie at kernel.org>
---
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;
}
}
--
2.20.1
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