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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
So, switched to fsleep() which takes care of calling respective functions according to the delay. Regards Srikanth -----Original Message----- > -----Original Message----- > From: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> > Sent: Thursday, September 12, 2024 2:32 PM > To: Murthy, Arun R <arun.r.murthy@xxxxxxxxx>;
> intel-xe@xxxxxxxxxxxxxxxxxxxxx;
intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Cc: Murthy, Arun R <arun.r.murthy@xxxxxxxxx>; Srikanth V, NagaVenkata
> <nagavenkata.srikanth.v@xxxxxxxxx> > Subject: Re: [PATCH 1/3] drm/i915/dp: use fsleep instead of
> usleep_rage for LT > > On Thu, 12 Sep 2024, Arun R Murthy <arun.r.murthy@xxxxxxxxx> 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 -------------------- |
