[Intel-gfx] [PATCH 03/11] drm/i915/bios: Use the copy of the LFP data table always

Ville Syrjälä ville.syrjala at linux.intel.com
Thu Mar 17 20:04:13 UTC 2022


On Thu, Mar 17, 2022 at 09:10:37PM +0200, Jani Nikula wrote:
> On Thu, 17 Mar 2022, Ville Syrjala <ville.syrjala at linux.intel.com> wrote:
> > From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> >
> > Currently get_lvds_fp_timing() still returns a pointer to the original
> > data block rather than our copy. Let's convert the data pointer offsets
> > to be relative to the data block rather than the whole BDB. With that
> > we can make get_lvds_fp_timing() return a pointer to the copy.
> 
> Ugh, so just as I R-b'd the previous patch... I realize it's all broken
> without this, right? It does pointer arithmetics between bdb header and
> the allocated bdb for ptrs?
> 
> Do we want a broken step?

Probably not. Somehow I convinced myself that the artihmetic was being
done between the original block and bdb header. So now I need to figure
out how to get out of this mess, I guess ideally without having to just
squash the two patches together...

-- 
Ville Syrjälä
Intel


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