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

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On Thu, Mar 17, 2022 at 10:04:13PM +0200, Ville Syrjälä wrote:
> On Thu, Mar 17, 2022 at 09:10:37PM +0200, Jani Nikula wrote:
> > On Thu, 17 Mar 2022, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> > > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > >
> > > 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...

I guess I could suck block_offset() from this patch into the previous
patch and call it temporarily straight from get_lvds_fp_timing().

-- 
Ville Syrjälä
Intel



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