[Intel-gfx] [PATCH 1/7] drm/i915: don't disable the power well yet

[Daniel Vetter]

On Fri, Mar 22, 2013 at 02:07:23PM -0300, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni at intel.com>
> 
> We're still not 100% ready to disable the power well, so don't disable
> it for now. When we disable it we break the audio driver (because some
> of the audio registers are on the power well) and machines with eDP on
> port D (because it doesn't use TRANSCODER_EDP).
> 
> Also, instead of just reverting the code, add a Kernel option to let
> us disable it if we want. This will allow us to keep developing and
> testing the feature while it's not enabled.
> 
> This fixes problems caused by the following commit:
>   commit d6dd9eb1d96d2b7345fe4664066c2b7ed86da898
>   Author: Daniel Vetter <daniel.vetter at ffwll.ch>
>   Date:   Tue Jan 29 16:35:20 2013 -0200
>        drm/i915: dynamic Haswell display power well support
> 
> References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
> Cc: Takashi Iwai <tiwai at suse.de>
> Cc: Mengdong Lin <mengdong.lin at intel.com>
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
Picked up for -fixes, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch