Hi Trilok, >-----Original Message----- >From: Trilok Soni [mailto:tsoni@xxxxxxxxxxxxxx] > >I think what you are referring is similar to Android specific early suspend/resume >framework. For example, what is the use of TS (if not used as wakeup) resources >when the screen goes blank, so better to early suspend it rather than waiting >upto the platform suspend to happen. I think no. IMO TS should be disabled only when the user decides to lock off the phone or screen. This is independent of any suspend or early suspend operation. As Samu said, lots of back ground operations might keep the CPU running. >I think this can be solved with pm_runtime, isn't it? Though I am not expert >at pm_runtime, but this framework can be explored to enable these features. > Hmm. Yes. Even I think so; but I am not really sure if these run time helpers for suspend/resume can be invoked from the user space. If I understand correctly, a event like a lock-key, keypad slider open/close or MMC slot door close/open should trigger an event to user space, which can then force devices to suspend/resume. If this is possible via these runtime_* helpers, then as Dmitry says, it would be up to the user space to suspend/resume the device; we end up using a single helper for either run time suspend or platform suspend. Maybe Rafael can comment here. Regards, Sundar _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
