From: Abd-Alrhman Masalkhi <abd.masalkhi@gmail.com>
To: arnd@arndb.de, gregkh@linuxfoundation.org, robh@kernel.org,
krzk+dt@kernel.org
Cc: conor+dt@kernel.org, luoyifan@cmss.chinamobile.com,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
christophe.jaillet@wanadoo.fr, abd.masalkhi@gmail.com
Subject: [PATCH v6 0/3] Add support for STMicroelectronics M24LR EEPROM/NFC chips
Date: Sun, 6 Jul 2025 10:53:08 +0000 [thread overview]
Message-ID: <20250706105311.395162-1-abd.masalkhi@gmail.com> (raw)
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@gmail.com>
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 | 662 ++++++++++++++++++
5 files changed, 833 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
--
2.43.0
next reply other threads:[~2025-07-06 10:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-06 10:53 Abd-Alrhman Masalkhi [this message]
2025-07-06 10:53 ` [PATCH v6 1/3] dt-bindings: eeprom: Add ST M24LR support Abd-Alrhman Masalkhi
2025-07-06 10:53 ` [PATCH v6 2/3] eeprom: add driver for ST M24LR series RFID/NFC EEPROM chips Abd-Alrhman Masalkhi
2025-07-15 15:36 ` Abd-Alrhman Masalkhi
2025-07-16 11:53 ` Greg KH
2025-07-16 14:21 ` Abd-Alrhman Masalkhi
2025-07-06 10:53 ` [PATCH v6 3/3] ABI: sysfs: add documentation for ST M24LR EEPROM and control interface Abd-Alrhman Masalkhi
2025-07-15 15:42 ` Abd-Alrhman Masalkhi
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