Hi Jani, AUX_RD interval can have maximum value of 256ms. usleep_range() is recommended to be used for 10uS-20ms range as per Documentation/timers/timers-howto.rst
[cid:[email protected]] So, switched to fsleep() which takes care of calling respective functions according to the delay. Regards Srikanth -----Original Message----- From: Murthy, Arun R <[email protected]> Sent: Thursday, September 12, 2024 3:34 PM To: Jani Nikula <[email protected]>; [email protected]; [email protected] Cc: Srikanth V, NagaVenkata <[email protected]> Subject: RE: [PATCH 1/3] drm/i915/dp: use fsleep instead of usleep_rage for LT > -----Original Message----- > From: Jani Nikula > <[email protected]<mailto:[email protected]>> > Sent: Thursday, September 12, 2024 2:32 PM > To: Murthy, Arun R <[email protected]<mailto:[email protected]>>; > [email protected]<mailto:[email protected]>; > [email protected]<mailto:[email protected]> > Cc: Murthy, Arun R <[email protected]<mailto:[email protected]>>; > Srikanth V, NagaVenkata > <[email protected]<mailto:[email protected]>> > Subject: Re: [PATCH 1/3] drm/i915/dp: use fsleep instead of > usleep_rage for LT > > On Thu, 12 Sep 2024, Arun R Murthy > <[email protected]<mailto:[email protected]>> wrote: > > Aux RD Interval value depends on the value read from the dpcd > > register which is updated from the sink device use flseep thereby we > > adhere to the Documentation/timers/timers-howto.rst > > Please explain why instead of just referencing a file. Sleeping for < 10us use udelay, for 10us to 20ms use usleep_range and for > 10ms use msleep. fsleep() will call the particular api based on the above condition. Thanks and Regards, Arun R Murthy --------------------
