[PATCH v2 0/2] hwmon: (pmbus/max20830) add MAX20810/15 and LTM4739/40
From: Carlos Jones
Date: Tue Nov 03 2026 - 03:54:29 EST
From: Carlos Jones Jr <carlosjr.jones@xxxxxxxxxx>
This series adds support for four additional members of the MAX20830
PMBus regulator family to the existing max20830 driver:
- MAX20810 (10A) and MAX20815 (15A)
- LTM4739 and LTM4740, the LTM-series module equivalents of the
MAX20810 and MAX20815 respectively
All four share the MAX20830 PMBus command set and telemetry, so support
amounts to accepting their IC_DEVICE_ID and documenting the parts; no new
register handling is required. The LTM4739/LTM4740 modules are built around
the MAX20810/MAX20815 dies and report the die's IC_DEVICE_ID ("MAX20810B" /
"MAX20815B"), which the driver matches at probe. Device-tree matching uses
the existing adi,max20830 fallback compatible, so no new of_match entries
are needed.
Patch 1 adds the device-tree binding compatibles; patch 2 adds the driver
support and documentation.
Changes since v1:
- Document the IC_DEVICE_ID vs datasheet discrepancy in-tree, per Guenter's
review: a code comment above supported_chip_ids[] and an expanded commit
message, including why the plain datasheet IDs ("MAX20810"/"MAX20815"/
"LTM4739"/"LTM4740") are not matched (no hardware reporting them observed).
- Rebased on current hwmon-next; no functional change.
- Patch 1 (dt-bindings) is unchanged and carries Conor Dooley's Acked-by
from v1.
v1: https://lore.kernel.org/all/20261026050241.100428-1-carlosjr.jones@xxxxxxxxxx/
Carlos Jones Jr (2):
dt-bindings: hwmon: max20830: Add MAX20810, MAX20815, LTM4739, LTM4740
hwmon: (pmbus/max20830) Add support for MAX20810, MAX20815, LTM4739,
LTM4740
.../bindings/hwmon/pmbus/adi,max20830.yaml | 4 ++
Documentation/hwmon/max20830.rst | 51 ++++++++++++++++---
drivers/hwmon/pmbus/max20830.c | 10 +++-
3 files changed, 58 insertions(+), 7 deletions(-)
base-commit: 0dd96d0d34d183866ca6daf5af41341abdfc982a
--
2.43.0