ASoC: fsl_xcvr: Add suspend and resume support

Browse source

Use regcache_sync() to recover the registers of controller,
PHY and PLL after suspend and resume.
In order to recover the registers need to avoid use the
*_SET, *_CLR and *_TOG registers.

Recovery of the registers should be done before loading
XCVR firmware otherwise some registers set by firmware
are overwritten. Besides only in eARC mode is it necessary
to load XCVR firmware.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Link: https://patch.msgid.link/20241127030035.649219-3-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Shengjiu Wang 2024-11-27 11:00:35 +08:00 • committed by Mark Brown

parent 5a8b4785cd

commit e6a9750a34

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 118 additions and 42 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

160

sound/soc/fsl/fsl_xcvr.c

View file