[PATCH] drm/ast: Avoid to access BMC addressing when P2A is disabled

[Sam Ravnborg]

On Sat, Oct 17, 2020 at 07:01:38AM +1000, David Airlie wrote:
> On Fri, Oct 16, 2020 at 6:03 PM KuoHsiang Chou
> <kuohsiang_chou at aspeedtech.com> wrote:
> >
> > The patch is upstreamed
> > 1. For RHEL7.x, because its native kernel is suggested to update
> >    from 3.10 to 4.9 on 2 ODM's platform.
> > 2. For AST2600.
> > 3. For ASTDP.
> > 4. v1.11
> 
> Hi,
> 
> I've cc'ed Thomas who is maintaining this upstream, but this patch in
> it's current form isn't acceptable, Maybe Thomas can provide more
> detailed info, but the basic rules are
> 
> One patch should do one thing.
> Patches should be bisectable so any issues can be tracked down easier.
> Fixes should be separated from new code.
> New features and chip support should be separate.

I noticed the patch included drmP.h - which has been gone for a while.
So on top of what Dave wrote it should build (and work) on the latest
kernel.

	Sam