ACK/Cmnt: [PATCH 00/10][SRU][M] Fix system suspend problem for Cirrus CS35L41 HDA codec on HP ZBook Fury 16 G9

[Tim Gardner]

On 11/21/23 11:35 PM, Chris Chiu wrote:
> BugLink: https://bugs.launchpad.net/bugs/2042060
> 
> [Impact]
> Few HP ZBook Fury 16 G9 laptops suffers audio problems after system resume from suspend. The audio play and capture functions are not working after resume from S3.
> 
> [Fix]
> Backport the fix from Cirrus on linux-next https://lore.kernel.org/all/20231026150558.2105827-1-sbinding@opensource.cirrus.com/.
> 
> [Test Case]
> 1. Power on the HP ZBook Fury 16 G9 machine with CS35L41 HDA .
> 2. Perform system suspend/resume at least 3 times.
> 3. Verify the audio functions, including playback and capture
> 
> [Where problems could occur]
> Only affect specific laptops with the CS35L41 HDA. The impact is restricted.
> 
> Stefan Binding (10):
>    ALSA: hda: cs35l41: Support systems with missing _DSD properties
>    ALSA: hda: cs35l41: Override the _DSD for HP Zbook Fury 17 G9 to
>      correct boost type
>    ALSA: hda: cs35l41: Use reset label to get GPIO for HP Zbook Fury 17
>      G9
>    ALSA: hda: cs35l41: Assert reset before system suspend
>    ALSA: hda: cs35l41: Assert Reset prior to de-asserting in probe and
>      system resume
>    ALSA: hda: cs35l41: Run boot process during resume callbacks
>    ALSA: hda: cs35l41: Force a software reset after hardware reset
>    ALSA: hda: cs35l41: Do not unload firmware before reset in system
>      suspend
>    ALSA: hda: cs35l41: Check CSPL state after loading firmware
>    ASoC: cs35l41: Detect CSPL errors when sending CSPL commands
> 
>   include/sound/cs35l41.h              |   3 +
>   sound/pci/hda/Makefile               |   2 +-
>   sound/pci/hda/cs35l41_hda.c          | 235 ++++++++++++++-------------
>   sound/pci/hda/cs35l41_hda.h          |   1 +
>   sound/pci/hda/cs35l41_hda_property.c | 112 +++++++++++++
>   sound/pci/hda/cs35l41_hda_property.h |  18 ++
>   sound/soc/codecs/cs35l41-lib.c       |   6 +
>   7 files changed, 262 insertions(+), 115 deletions(-)
>   create mode 100644 sound/pci/hda/cs35l41_hda_property.c
>   create mode 100644 sound/pci/hda/cs35l41_hda_property.h
> 
Acked-by: Tim Gardner <tim.gardner at canonical.com>

Clean series known to impact only a specific model.
-- 
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Tim Gardner
Canonical, Inc