diff options
| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2026-02-26 11:01:37 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-02 13:25:19 +0200 |
| commit | ec60d3a356a5de9aca085f1f174d6a6b3b8b788e (patch) | |
| tree | db361822a085fe323958d7a44f69eaecb03704d7 /include | |
| parent | 3be50031b10b3adb05f888bc37dc4295888f61b6 (diff) | |
ASoC: cs35l56: Only patch ASP registers if the DAI is part of a DAIlink
[ Upstream commit 9351cf3fd92dc1349bb75f2f7f7324607dcf596f ]
Move the ASP register patches to a separate struct and apply this from the
ASP DAI probe() function so that the registers are only patched if the DAI
is part of a DAI link.
Some systems use the ASP as a special-purpose interconnect and on these
systems the ASP registers are configured by a third party (the firmware,
the BIOS, or another device using the amp's secondary host control
interface).
If the machine driver does not hook up the ASP DAI then the ASP registers
must be omitted from the patch to prevent overwriting the third party
configuration.
If the machine driver includes the ASP DAI in a DAI link, this implies that
the machine driver and higher components (such as alsa-ucm) are taking
ownership of the ASP. In this case the ASP registers are patched to known
defaults and the machine driver should configure the ASP.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260226110137.1664562-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/cs35l56.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h index 5928af539c46..d0ae1ae2ae2a 100644 --- a/include/sound/cs35l56.h +++ b/include/sound/cs35l56.h @@ -374,6 +374,7 @@ extern const char * const cs35l56_cal_set_status_text[3]; extern const char * const cs35l56_tx_input_texts[CS35L56_NUM_INPUT_SRC]; extern const unsigned int cs35l56_tx_input_values[CS35L56_NUM_INPUT_SRC]; +int cs35l56_set_asp_patch(struct cs35l56_base *cs35l56_base); int cs35l56_set_patch(struct cs35l56_base *cs35l56_base); int cs35l56_mbox_send(struct cs35l56_base *cs35l56_base, unsigned int command); int cs35l56_firmware_shutdown(struct cs35l56_base *cs35l56_base); |