Re: [PATCH] drm/msm/dp: Shorten SETUP timeout

From: Bjorn Andersson
Date: Tue Oct 05 2021 - 17:39:03 EST


On Tue 05 Oct 11:45 PDT 2021, Stephen Boyd wrote:

> Quoting Bjorn Andersson (2021-10-04 19:37:50)
> > Found in the middle of a patch from Sankeerth was the reduction of the
> > INIT_SETUP timeout from 10s to 100ms. Upon INIT_SETUP timeout the host
> > is initalized and HPD interrupt start to be serviced, so in the case of
> > eDP this reduction improves the user experience dramatically - i.e.
> > removes 9.9s of bland screen time at boot.
> >
> > Suggested-by: Sankeerth Billakanti <sbillaka@xxxxxxxxxxxxxx>
> > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> > ---
>
> Any Fixes tag? BTW, the delay design is pretty convoluted. I had to go
> re-read the code a couple times to understand that it's waiting 100ms
> times the 'delay' number. Whaaaaat?
>

I assume you're happy with the current 10s delay on the current
devices, so I don't think we should push for this to be backported.
I have no need for it to be backported on my side at least.

> Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>

Thanks,
Bjorn