Re: [Intel-gfx] [PATCH] drm/i915/display: Increase the DDI idle timeout to 500us

2020-03-19 Thread Ville Syrjälä 
On Thu, Mar 19, 2020 at 11:30:03AM +0200, Arkadiusz Hiler wrote:
> On Thu, Mar 19, 2020 at 11:20:34AM +0200, Arkadiusz Hiler wrote:
> > Bspec says that we should timeout after 500us. Let's match this in the
> > code. It may help with few of the timeouts we see here and there.
> 
> Plese disregard. it's 500us when waiting on non-idle and only 8 (16
> for BXT) for back to idle.

Could probably convert to intel_de_wait_for...() regardless. 1ms vs. 16us
isn't going to kill us in modeset code. The exact bspec value can be
kept as a comment.

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH] drm/i915/display: Increase the DDI idle timeout to 500us

2020-03-19 Thread Arkadiusz Hiler 
On Thu, Mar 19, 2020 at 11:20:34AM +0200, Arkadiusz Hiler wrote:
> Bspec says that we should timeout after 500us. Let's match this in the
> code. It may help with few of the timeouts we see here and there.

Plese disregard. it's 500us when waiting on non-idle and only 8 (16
for BXT) for back to idle.

-- 
Cheers,
Arek
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