Messages in this thread | | | Subject | Re: [PATCH] i2c: enable async suspend/resume on i2c devices | From | Hans de Goede <> | Date | Fri, 27 Jul 2018 14:07:11 +0200 |
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Hi,
On 07/27/2018 12:44 PM, Andy Shevchenko wrote: > On Fri, Jul 27, 2018 at 1:55 AM, Derek Basehore <dbasehore@chromium.org> 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? > > 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
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