On 2020-07-02 01:20, Kiwoong Kim wrote: > When you set uic_link_state during sleep statae to > UIC_LINK_OFF_STATE, UFS driver does interface initialization > that is a series of some steps including fDeviceInit and thus, > You might feel that its latency is a little bit longer. > > This patch is run it asynchronously to reduce system wake-up time. Device drivers like UFS should only perform tasks that are specific to the supported device(s). Asynchronous resume from a sleep state is a mechanism that may also benefit other device drivers. Please work with the maintainers of the power management subsystem (Rafael J. Wysocki and Pavel Machek) to integrate support for this feature in the kernel power management subsystem. The kernel power management subsystem exists in the directory kernel/power. Thanks, Bart.
