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Add support for Infineon eFuse XDP720/XDP730

From:  ASHISH YADAV <ashishyadav78-AT-gmail.com>
To:  Guenter Roeck <linux-AT-roeck-us.net>, Rob Herring <robh-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>
Subject:  [PATCH v2 0/2] Add support for Infineon eFuse XDP720/XDP730
Date:  Fri, 29 May 2026 11:12:16 +0530
Message-ID:  <20260529054218.5184-1-Ashish.Yadav@infineon.com>
Cc:  linux-hwmon-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, Ashish Yadav <ashish.yadav-AT-infineon.com>
Archive-link:  Article

From: Ashish Yadav <ashish.yadav@infineon.com>

Hi,

These patches add support for Infineon XDP720/XDP730 Digital eFuse
Controllers.
The XDP720 and XDP730 are PMBus-compliant digital eFuse controllers
with an integrated current sensor.They provide accurate system
telemetry (V, I, P, T) and report analog current at the IMON pin for
post-processing.

Both parts share the same PMBus register map and direct-format
coefficients; they differ in the GIMON gain step exposed via the
TELEMETRY_AVG register (bit 10) and in the VDD_VIN pin number
(XDP720: pin 9, XDP730: pin 20).

The Current and Power measurement depends on the RIMON and GIMON values.
The GIMON (microA/A) depends on the 10th bit of TELEMETRY_AVG PMBUS Register.
The value of RIMON (kohm) can be provided by the user through device tree using
infineon,rimon-micro-ohms  property.

Datasheets:
 - XDP720: https://www.infineon.com/assets/row/public/documents/24/4...
 - XDP730: https://www.infineon.com/assets/row/public/documents/24/4...

With Best Regards,
 Ashish Yadav
---
Changes in v2:
- Link to v1:
https://lore.kernel.org/all/20260519075558.91466-1-Ashish...
- Integrated XDP720/XDP730 drivers into one driver.
https://lore.kernel.org/all/51133193-57fb-4a22-bf9e-9817f...

Ashish Yadav (2):
  dt-bindings: hwmon/pmbus: Add Infineon XDP720/XDP730
  hwmon:(pmbus/xdp730) Add support for efuse xdp720/xdp730

 .../bindings/hwmon/pmbus/infineon,xdp720.yaml |  59 -------
 .../bindings/hwmon/pmbus/infineon,xdp730.yaml |  80 +++++++++
 drivers/hwmon/pmbus/Kconfig                   |   8 +-
 drivers/hwmon/pmbus/Makefile                  |   2 +-
 drivers/hwmon/pmbus/xdp720.c                  | 128 --------------
 drivers/hwmon/pmbus/xdp730.c                  | 159 ++++++++++++++++++
 6 files changed, 244 insertions(+), 192 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml
 create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp730.yaml
 delete mode 100644 drivers/hwmon/pmbus/xdp720.c
 create mode 100644 drivers/hwmon/pmbus/xdp730.c

-- 
2.39.5




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