[Intel-gfx] [PATCH] drm/i915/kbl: Adding missing IS_KABYLAKE checks.

Michel Thierry michel.thierry at intel.com
Wed Mar 16 14:31:10 UTC 2016

On 2/29/2016 2:35 PM, Jani Nikula wrote:
> On Fri, 26 Feb 2016, Rodrigo Vivi <rodrigo.vivi at gmail.com> wrote:
>> Hi Jani and Daniel,
>> I believe I forgot to cc:stable on this one and this is missing on
>> most branches out there including Linus 4.5-r5.
>> Is there any chance to get this patch in for 4.5? without this i915 is
>> not working on KBL.
> Is the referenced commit by Michel also required?
>      Michel had found the main error first and his
>      fix had better details on the history and got
>      merged already:
>      commit 16fbc291cb87c7defcd13ad715d3e4af0d523e43
>      Author: Michel Thierry <michel.thierry at intel.com>
>      Date:   Wed Jan 6 12:08:36 2016 +0000
>          drm/i915/kbl: Enable PW1 and Misc I/O power wells
> If that's needed, what else is needed? Where does the rabbit hole end?
>> Good thing is that this platform is still protected by preliminary_hw_support.
> We do not backport cc: stable fixes for platforms that only have
> preliminary hw support.
> v4.5 is not released yet, and although towards the later -rc's the rules
> are pretty much the same as for stable kernels, I might consider
> cherry-picking kbl fixes that make platform enabling or early adoption
> easier.

Hi Jani,

Now that v4.5 has been released, would you consider _backporting_ these 
two patches to allow kbl to boot?

AFAIK, these are the only patches needed,
drm/i915/kbl: Enable PW1 and Misc I/O power wells
drm/i915/kbl: Adding missing IS_KABYLAKE checks



> BR,
> Jani.

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