[Intel-gfx] [PATCH] drm/i915/phy: Quieten state loss across suspend

[Chris Wilson]

Quoting Souza, Jose (2020-11-17 17:19:19)
> On Tue, 2020-11-17 at 17:14 +0000, Chris Wilson wrote:
> > When the HW is powered down, the register state and links are lost. This
> > may be an issue in the firmware, or in the code expectations; whatever
> > it is, it is expected behaviour now for Tigerlake; stop warning!
> > 
> > References: https://gitlab.freedesktop.org/drm/intel/-/issues/2411
> 
> We are missing a IFWI/firmware update to fix this issue, already asked CI team to update but no luck so far.
> 
> During icl_combo_phys_uninit() is expected to have the registers set with expected values as it was not powered down yet.

I thought it was being thrown from the resume path, my bad reading of the
suspend events.

Still is there no other way to prove it is an out right error, or
dismiss it as irrelevant? Or disable the fw if it is misbehaving.
-Chris