=============================================== The Linux WatchDog Timer Power Management Guide =============================================== Last reviewed: 17-Dec-2018 Wolfram Sang 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/