[Intel-gfx] [PATCH] drm/i915: Addin-offset is an unreliable indicator of LVDS present

Chris Wilson chris at chris-wilson.co.uk
Tue Aug 24 00:00:29 CEST 2010


On Mon, 23 Aug 2010 14:22:48 -0400, Adam Jackson <ajax at redhat.com> wrote:
> IWBNI we had the VBT in a sysfs or debugfs file, if we're not going to
> be able to pull it out of the legacy ROM space reliably.

I added it to debugfs, only to my surprise the header.size field which I
thought was in KB (according to the OpRegion spec and the first machine I
tried) appears to be in bytes on the Samsung. Wonders never cease.

I guess I could just hardcode it to 8KiB, it's not like it is going to
change anytime soon.

Thanks for the information about the rationale, I'll dig out the OpRegion
shortly...

-- 
Chris Wilson, Intel Open Source Technology Centre



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