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The MediaTek implementation of the sbsa_gwdt watchdog has a race condition where a write to SBSA_GWDT_WRR is ignored if it occurs while the hardware is processing a timeout refresh that asserts WS0. Detect this based on the hardware implementer and adjust wdd->min_hw_heartbeat_ms to avoid the race by forcing the keepalive ping to be one second later. Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Acked-by: Timur Tabi <ttabi@nvidia.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20250721230640.2244915-1-aplattner@nvidia.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.