[Bug 97182] [REGRESSION][BISECT] Linux 4.8: SKL DMC Version is now 1.23?

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97182

--- Comment #13 from Direx <direx at betriebsdirektor.de> ---
(In reply to Rodrigo Vivi from comment #12)
> Nope, we cannot remove the symbolic link for the same reason that we cannot
> remove the 1.23, because there are stable kernel out there that loads that
> directly.

Most (if not all) recent kernels load the Skylake FW by symlink, so yes, the
symlink needs to stay.

The kernel code needs to be fixed anyway. I think there are two possibilities:

1. Fully revert 4aa7fb9c and keep loading the FW by symlink. In this case the
check for "required_min_version" would be restored, instead of checking
"required_version".

2. Fully restore the behavior introduced by 4aa7fb9c, including the version
pinning, and load the FW by direct name.

#2 would mean that the firmware needs to stay forever in linux-firmware.git.

The current behavior "i915/skl_dmc_ver1.bin is too new, go away" does not make
sense, though. Especially if the same FW loaded just fine on *older* kernels.

But surely the actual developers have the last word on this.

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