drm/i915/tgl/psr: Disable PSR on Tigerlake for now

Lyude Paulrequested to merge
Lyude/kernel-ark:ark-pull/rawhide-i915-tgl-disable-psr into os-build

Currently PSR2 appears to be broken on TGL which causes some pretty nasty refresh issues. Intel doesn't have a fix for this quite yet, and this definitely affects a couple of OEM machines shipping with Fedora.

We don't have a better workaround for the time being, so just disable PSR2 outright for Tigerlake by default until this gets fixed.

Signed-off-by: Lyude Paul lyude@redhat.com Cc: Jared Dominguez jaredz@redhat.com Cc: Mark Pearson markpearson@lenovo.com Bugzilla: https://gitlab.freedesktop.org/drm/intel/-/issues/3134

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