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[ Upstream commitc1a6edf3b5] Call runtime_pm_put*() if watchdog is not already started during probe and re enable it in watchdog start as required. On K3 SoCs, watchdogs and their corresponding CPUs are under same power-domain, so if the reference count of unused watchdogs aren't dropped, it will lead to CPU hotplug failures as Device Management firmware won't allow to turn off the power-domain due to dangling reference count. Fixes:2d63908bdb("watchdog: Add K3 RTI watchdog support") Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Tested-by: Manorit Chawdhry <m-chawdhry@ti.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20231213140110.938129-1-vigneshr@ti.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Sasha Levin <sashal@kernel.org>