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Date:   Tue, 5 Oct 2021 14:40:38 -0700
From:   Bjorn Andersson <>
To:     Stephen Boyd <>
Cc:     Abhinav Kumar <>,
        Daniel Vetter <>,
        David Airlie <>,
        Dmitry Baryshkov <>,
        Kuogee Hsieh <>,
        Rob Clark <>, Sean Paul <>,,,,,
        Sankeerth Billakanti <>
Subject: Re: [PATCH] drm/msm/dp: Shorten SETUP timeout

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 <>
> > Signed-off-by: Bjorn Andersson <>
> > ---
> 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 <>


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