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===============================================
The Linux WatchDog Timer Power Management Guide
===============================================
Last reviewed: 17-Dec-2018
Wolfram Sang <wsa+renesas@sang-engineering.com>
Introduction
------------
This document states rules about watchdog devices and their power management
handling to ensure a uniform behaviour for Linux systems.
Ping on resume
--------------
On resume, a watchdog timer shall be reset to its selected value to give
userspace enough time to resume. [1] [2]
[1] https://patchwork.kernel.org/patch/10252209/
[2] https://patchwork.kernel.org/patch/10711625/