[Intel-gfx] drm/i915/dp: Correctly report eDP in the core connector type

[Jesse Barnes]

On Mon, 4 Oct 2010 15:13:17 +0200
Jan-Hendrik Zab <jan at jhz.name> wrote:

> On 03/10/10 08:04 -0700, Jesse Barnes wrote:
> > On Thu, 2 Sep 2010 23:37:26 +0800
> > Zhenyu Wang <zhenyuw at linux.intel.com> wrote:
> [snip]
> > > Adam, I believe this one causes regression on PCH eDP port as
> > > for bug 27220. It changes behavior in mode_set path to program
> > > FDI link properly. 
> > > 
> > > I think above part should be reverted for .36 kernel. What's your
> > > idea? 
> > > 
> > > Thanks Yakui to remind me about this recent change.
> > 
> > Did PCH eDP ever work?  I'll try going back to a kernel before this
> > change, but current code definitely seems broken (we get never try to
> > get a real clock value for PCH eDP, and I don't think we program the
> > transcoder regs at all).
> > 
> > Even with those fixed though (among other things), I haven't been able
> > to get my Vaio with switchable graphics working.  Which platforms did
> > you have working, and what changeset is most likely to work?
> 
> There were a few revisions that worked fine with a Vaio VPCZ11C5E,
> among them:
> 	
>  - 36e83a187ca7517e9bdce7148b1c2c27661ef38f
>  - a2757b6fab6dee3dbf43bdb7d7226d03747fbdb1
> 
> But I was unable to bisect the problem properly until now and bug 29414
> isn't exactly helping either.

First commit adds eDP on PCH support but doesn't work for me.  Second
looks unrelated on ILK (SNB caching bits commit).

-- 
Jesse Barnes, Intel Open Source Technology Center