[Bug 101144] [BAT][SKL] *ERROR* failed to enable link training

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101144

--- Comment #22 from Manasi <manasi.d.navare at intel.com> ---
(In reply to Jani Nikula from comment #17)
> (In reply to Manasi from comment #14)
> > I am trying to find out at what point can we first check for dp aux
> > transactions and wait longer to try again?
> 
> Can you explain how we'd end up in link training if native aux was failing
> altogether? It must have worked for some time before link training, right?
> 
> Ville's explanation would cover this as well.

Actually it fails inside the function intel_dp_link_training_clock_reciovery()
when it tries to write the TP1 and errors out saying "Failed to enable link
training".
Yes but it worked fine for DPCD reads over AUX, so that's why I am confused as
to where we need to add the delay for the AUX reads?

Also, shouldn't the spec for that specific panel or the eDP spec talk about how
much delay should be given for the AUX read/writes?
Any thoughts on double checking this in the spec?

Manasi

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