[PATCH v2 0/2] watchdog: w83627hf_wdt: Add NCT6126 support and improve handling of running watchdog

[Paul Louvel]

This series brings two small improvements to the w83627hf_wdt driver.

The first patch adds support for the Nuvoton NCT6126 Super I/O chip. The
NCT6126 is compatible with the existing driver but requires reading the
full 16-bit chip ID, as it shares its high-byte ID with the NCT6116.

The second patch improves the handling of watchdogs that are already
running when the driver probes. Instead of issuing a single keepalive
using the default timeout, it relies on the watchdog core's
WDOG_HW_RUNNING support to automatically maintain the watchdog until
userspace opens the device.

Signed-off-by: Paul Louvel <paul.louvel@xxxxxxxxxxx>
---
Changes in v2:
- Small mistake in the first patch. The NCT6116_ID macro is redefined.
  Fix it.

To: Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx>
To: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: linux-watchdog@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx

---
Paul Louvel (2):
      watchdog: w83627hf_wdt: Add support for Nuvoton NCT6126
      watchdog: w83627hf_wdt: Use WDOG_HW_RUNNING for running chip on boot

 drivers/watchdog/w83627hf_wdt.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)
---
base-commit: 028ef9c96e96197026887c0f092424679298aae8
change-id: 20260705-w83627hf_wdt-nct6126d-9a016bf7c936

Best regards,
--  
Paul Louvel, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com