[PATCH 0/5] hwmon: (pmbus) Add support for MAX20826 and similar devices

Add support for Analog Devices MAX20826, MAX20855B, MAX20908,
MAX20912 and MAX20916 dual-output multiphase PMBus voltage regulator
controllers.

This follows up on the earlier MAX20912/MAX20916 submission and the
review discussion around it [1]. Compared to that minimal driver, this
series covers the full MAX20826 family and implements the device-specific
pieces discussed there: optional EN GPIO handling, non-standard phase
reporting, direct address mode, and regulator support.

The first patches prepare/fix PMBus core support needed by the driver:
fix regulator enable/disable return handling, allow up to 16 phases, and
add a device-specific block-read hook. The remaining patches add the DT
binding and the MAX20826-family driver/documentation.

Guenter,

We are still checking the possibility of getting you docs for at least
one of the parts supported byu this series.

[1]: https://lore.kernel.org/linux-hwmon/20260707122701.751878-3-fredchen.openbmc@gmail.com/ (local)

---
Nuno Sá (5):
      hwmon: (pmbus/core) fix regulator enable/disable
      hwmon: (pmbus/core) increase number of phases and add new mask
      hwmon: (pmbus/core) Add mapping function to pmbus_read_block_data()
      dt-bindings: hwmon/pmbus: Document MAX20826 and similar devices
      hwmon: (pmbus) add support for MAX20826 and similar devices

 .../bindings/hwmon/pmbus/adi,max20826.yaml         |   56 ++
 Documentation/hwmon/index.rst                      |    1 +
 Documentation/hwmon/max20826.rst                   |  124 +++
 MAINTAINERS                                        |    9 +
 drivers/hwmon/pmbus/Kconfig                        |   19 +
 drivers/hwmon/pmbus/Makefile                       |    1 +
 drivers/hwmon/pmbus/max20826.c                     | 1037 ++++++++++++++++++++
 drivers/hwmon/pmbus/pmbus.h                        |    6 +-
 drivers/hwmon/pmbus/pmbus_core.c                   |   39 +-
 9 files changed, 1286 insertions(+), 6 deletions(-)
---
base-commit: 92413f439d1ec5e55b73ede8d66a7b971cbd1ced
change-id: 20260728-hwmon-max20826-support-c82ee65118ec
--

Thanks!
- Nuno Sá