[PATCH v4 0/3] Add support for STMicroelectronics M24LR EEPROM/NFC chips

[Abd-Alrhman Masalkhi]

This patch series adds support for the STMicroelectronics M24LR series
RFID/NFC EEPROM devices. These chips expose two I2C addresses: the primary
one provides access to system control and configuration registers, while
the secondary address is used for EEPROM access.

The driver implements both functionalities:
 - A sysfs-based interface for the control and system parameter registers.
 - EEPROM access via the nvmem subsystem using a secondary I2C dummy
   client.

Tested on: M24LR04E-R using Yocto on Raspberry Pi 4

Signed-off-by: Abd-Alrhman Masalkhi <abd.masalkhi@xxxxxxxxx>

Abd-Alrhman Masalkhi (3):
  dt-bindings: eeprom: Add ST M24LR support
  eeprom: add driver for ST M24LR series RFID/NFC EEPROM chips
  ABI: sysfs: add documentation for ST M24LR EEPROM and control
    interface

 .../ABI/testing/sysfs-bus-i2c-devices-m24lr   | 100 +++
 .../devicetree/bindings/eeprom/st,m24lr.yaml  |  52 ++
 drivers/misc/eeprom/Kconfig                   |  18 +
 drivers/misc/eeprom/Makefile                  |   1 +
 drivers/misc/eeprom/m24lr.c                   | 653 ++++++++++++++++++
 5 files changed, 824 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c-devices-m24lr
 create mode 100644 Documentation/devicetree/bindings/eeprom/st,m24lr.yaml
 create mode 100644 drivers/misc/eeprom/m24lr.c

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2.43.0