On Fri, Jul 27, 2018 at 5:07 AM Hans de Goede <[email protected]> wrote:
> Hi, > > On 07/27/2018 12:44 PM, Andy Shevchenko wrote: > > On Fri, Jul 27, 2018 at 1:55 AM, Derek Basehore <[email protected]> > wrote: > >> This enables the async suspend property for i2c devices. This reduces > >> the suspend/resume time considerably on platforms with multiple i2c > >> devices (such as a trackpad or touchscreen). > > > > How did you test this? > It was tested on Apollolake Chromebook devices. > > > > Especially on Chromebooks based on Intel Cherrytrail / Braswell > > platforms, they have a painful PMIC vs. OS design solution. > > > > +Cc: Hans, who did a lot in this area. > > We disable suspend of the i2c controller for the i2c-bus > to which the PMIc is connected on these platforms, so I do not > expect this to cause any new issues. > > But this is something to keep an eye on, > > Regards, > > Hans > >
