ASoC: apple: mca: Do not mark clocks in use for non-providers

Browse source

On the speakers PCM, this sequence:

1. Open playback
2. Open sense
3. Close playback
4. Close sense

would result in the sense FE being marked as clocks in use at (2), since
there is a clock provider (playback FE). Then at (4) this would WARN since
there is no driver any more when closing the in use clocks.

If (1) and (2) are reversed this does not happen, since the sense PCM is
not marked as using the clocks when there is no provider yet. So, check
explicitly whether the substream FE is a clock provider in be_prepare,
and skip everything if it isn't.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: James Calligeros <jcalligeros99@gmail.com>
Link: https://patch.msgid.link/20260711-apple-audio-redux-v4-6-2994d87c2f24@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Hector Martin 2026-07-11 11:11:24 +10:00 • committed by Mark Brown

parent 108a14b20f

commit 889c26cfb9

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 37 additions and 30 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

67

sound/soc/apple/mca.c

View file