> -Original Message-
> From: Nikula, Jani
> Sent: Monday, December 5, 2022 4:08 PM
> To: Murthy, Arun R ; intel-
> g...@lists.freedesktop.org; ville.syrj...@linux.intel.com; Deak, Imre
>
> Cc: Murthy, Arun R
> Subject: Re: [PATCHv2] drm/i915/dp: Change aux_ctl reg read to polling read
>
On Thu, 01 Dec 2022, Arun R Murthy wrote:
> The busy timeout logic checks for the AUX BUSY, then waits for the
> timeout period and then after timeout reads the register for BUSY set
> and fails.
That's inaccurate. It checks for busy, waits for the gmbus irq, and on
timeout or irq, whichever
The busy timeout logic checks for the AUX BUSY, then waits for the
timeout period and then after timeout reads the register for BUSY set
and fails.
Instead replace interrupt with polling so as to read the AUX CTL
register often before the timeout period.
v2: replace interrupt with polling read
