ACK: [PATCH 0/6][SRU][M] Support speaker mute hotkey for Cirrus CS35L41 HDA codec

[Roxana Nicolescu]

On 21/11/2023 13:28, Chris Chiu wrote:
> BugLink: https://bugs.launchpad.net/bugs/2039151
>
> [Impact]
> Some systems use a special hotkey to mute speaker audio. On systems using CS35L41 HDA which have this hotkey, add a mechanism which uses ACPI notifications to detect whether the hotkey is triggered to switch the mute state.
>
> [Fix]
> Backport the fix from Cirrus on linux-next https://lore.kernel.org/alsa-devel/87fs36egnv.wl-tiwai@suse.de/T/#t.
>
> [Test Case]
> 1. Power on the machine with CS35L41 HDA and the speaker mute hotkey.
> 2. Verify the audio functions
> 3. Verify if the speaker can be mute/unmute by the hotkey.
>
> [Where problems could occur]
> Only affect specific laptops with the CS35L41 HDA and the speaker mute hotkey on keyboard. The impact is restricted.
>
> Stefan Binding (5):
>    ALSA: hda: cs35l41: Support systems with missing _DSD properties
>    ALSA: hda: cs35l41: Add notification support into component binding
>    ALSA: hda/realtek: Support ACPI Notification framework via component
>      binding
>    ALSA: hda: cs35l41: Support mute notifications for CS35L41 HDA
>    ALSA: hda: cs35l41: Add read-only ALSA control for forced mute
>
> Takashi Iwai (1):
>    ALSA: hda: cs35l41: Fix the loop check in cs35l41_add_dsd_properties
>
>   sound/pci/hda/Makefile               |   2 +-
>   sound/pci/hda/cs35l41_hda.c          | 197 ++++++++++++++++++---------
>   sound/pci/hda/cs35l41_hda.h          |   4 +
>   sound/pci/hda/cs35l41_hda_property.c |  73 ++++++++++
>   sound/pci/hda/cs35l41_hda_property.h |  18 +++
>   sound/pci/hda/hda_component.h        |   4 +
>   sound/pci/hda/patch_realtek.c        |  83 ++++++++++-
>   7 files changed, 316 insertions(+), 65 deletions(-)
>   create mode 100644 sound/pci/hda/cs35l41_hda_property.c
>   create mode 100644 sound/pci/hda/cs35l41_hda_property.h
>
Acked-by: Roxana Nicolescu <roxana.nicolescu at canonical.com>