Files
Heinrich Toews 835d1cd4c5 nfc: tag: add NFC tag device st25dvxxk
This driver is actually an external kernel module that was imported
into the kernel tree.

You can find the original driver of Boban Loïc at

https://github.com/2pecshy/eeprom-ST25DV-linux-driver.git

Changes done by Fa. WAGO:

- refactor the probe and detect functions to align with
  modern Linux kernel best practices:

- Switch to Managed Resources: Replaced standard kmalloc/kzalloc with
  devm_kmalloc/devm_kzalloc for all data structures and buffers.
  This simplifies the probe function and eliminates the need for
  most memory-related goto labels and manual kfree calls.
- Automatic Device Management: Integrated devm_add_action_or_reset
  to handle the automatic unregistering of the dummy I2C client,
  ensuring safer resource release during error paths and removal.
- Modernized Logging: Replaced generic pr_warn/pr_info calls with
  device-specific dev_err, dev_info, and dev_dbg for better
  traceability in systems with multiple I2C devices.
- Improved String Handling: Replaced the deprecated strlcpy with
  the safer strscpy in the detection phase.
- Enhanced Status Reporting: Added detailed dev_info upon successful
  probe, including the specific chip model name and detected memory
  capacity.
- Coding Style Fixes: Standardized indentation, removed unnecessary
  braces for single-statement blocks, and structured area-specific
  initializations to improve readability and maintainability.

The driver was tested and seems to be working fine.

Signed-off-by: Heinrich Toews <ht@twx-software.de>
2026-03-17 17:54:08 +01:00
..
2026-03-17 17:54:08 +01:00