* Thomas Richard <thomas.richard@xxxxxxxxxxx> [240304 15:36]: > A device may need the controller up during suspend_noirq() or > resume_noirq(). > But if the controller is autosuspended, there is no way to wakeup it during > suspend_noirq() or resume_noirq() because runtime pm is disabled at this > time. > > The suspend() callback wakes up the controller, so it is available until > its suspend_noirq() callback (pm_runtime_force_suspend()). > During the resume, it's restored by resume_noirq() callback > (pm_runtime_force_resume()). Then resume() callback enables autosuspend. Reviewed-by: Tony Lindgren <tony@xxxxxxxxxxx>
