[Intel-gfx] [PATCH] drm/i915: Don't pretend ips is always enabled on BDW.

[Daniel Vetter]

On Mon, Jun 30, 2014 at 04:17:00PM -0300, Paulo Zanoni wrote:
> 2014-06-30 8:45 GMT-03:00 Rodrigo Vivi <rodrigo.vivi at intel.com>:
> > As pointed out before we don't have a reliable way to read back ips
> > status on BDW without the risk to disable it when reading.
> > However now we are pretending that IPS on BDW is always on and getting
> > people confused about it.
> >
> > So this patch allows people to know if ips was ever attempted to be enabled.
> > Even if the current status is impossible to be ascertain.
> >
> > v2: (spotted by Paulo):
> >      * A version that at least compiles
> >      * with more clear messages
> >      * let Cheryview on the safe side until we aren't sure that checking ips
> >        state on ips won't disable it.
> >
> > Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> 
> Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch