[PATCH 0/3] ALSA: usb: add support for XMOS XVF3500

[Javier Carrasco <javier.carrasco@xxxxxxxxxxxxxx>]

The XMOS XVF3500 VocalFusion Voice Processor[1] is a low-latency, 32-bit
multicore controller for voice processing.

This device requires two power supplies and a specific power sequence to
reach normal operation, where it registers itself as a USB device. These
constraints cannot be cleanly solved without the use of a driver that
guarantees proper initialization during system power-up sequences and
sleep-mode transitions.

Once in normal operation, the device works like a regular USB device
with the obvious limitation that it cannot be unplugged because of its
onboard nature.

This series adds support for the XMOS XVF3500 and includes the device
bindings, which also required a new entry in vendor-prefixes for the
XMOS manufacturer.

[1] https://www.xmos.com/xvf3500/

Signed-off-by: Javier Carrasco <javier.carrasco@xxxxxxxxxxxxxx>
---
Javier Carrasco (3):
      dt-bindings: vendor-prefixes: add XMOS
      ASoC: dt-bindings: xmos,xvf3500: add bindings for XMOS XVF3500
      ALSA: usb: add support for XMOS XVF3500

 .../devicetree/bindings/sound/xmos,xvf3500.yaml    |  51 ++++++++
 .../devicetree/bindings/vendor-prefixes.yaml       |   2 +
 MAINTAINERS                                        |   7 ++
 sound/usb/Kconfig                                  |   9 ++
 sound/usb/Makefile                                 |   3 +-
 sound/usb/xvf3500/Makefile                         |   4 +
 sound/usb/xvf3500/xvf3500.c                        | 140 +++++++++++++++++++++
 7 files changed, 215 insertions(+), 1 deletion(-)
---
base-commit: 0dd3ee31125508cd67f7e7172247f05b7fd1753a
change-id: 20240111-feature-xvf3500_driver-c872839c11be

Best regards,
-- 
Javier Carrasco <javier.carrasco@xxxxxxxxxxxxxx>