在 2013-8-16，下午7:22，"Rafael J. Wysocki" <r...@sisk.pl> 写道：
> On Friday, August 16, 2013 04:06:26 PM Li Yang wrote: >> Hi Guys, >> >> Is there a standard way for the device drivers to know if the system >> is going to “standby” mode or “mem” mode when the suspend() callbacks >> are called? > > No, there's none. > > What do you need that for? Some chips like ours are putting the on-chip devices into different low power states when entering different system low power states. When we enter system standby, on-chip devices are clock gated. While entering suspend to ram, on-chip devices are power gated. We want to driver to act differently too when entering different suspend states. - Leo > > Rafael > >
