Re: [PATCH] drm/i915/skl: Add module parameter to select edp vswing table

Damien Lespiau
2015-05-05T13:00:50Z

On Tue, May 05, 2015 at 02:39:48PM +0300, Jani Nikula wrote:
> There's still the question whether we can default to using the vbt value
> if that can be broken...

This is a workaround for SDPs loaded with a "default" VBT which doesn't
correspond to the full fleet of SPDs. For actual product, it's really
expected to have a VBT with a correct low vswing bit set, otherwise the
panel won't lit up (even on Windows!).

It's probably a good idea to add a comment saying that's it's a
workaround for early platform with generic-ish VBT. Something that we
should remove in a bit.

--
Damien