[Intel-gfx] [PATCH v6] drm/i915/vlv: WA to fix Voltage not getting dropped to Vmin when Gfx is power gated.

[Daniel Vetter]

On Fri, Jan 31, 2014 at 11:09:47PM +0530, S, Deepak wrote:
> On 1/31/2014 10:40 PM, Ville Syrjälä wrote:
> >On Thu, Jan 30, 2014 at 11:08:16PM +0530, deepak.s at intel.com wrote:
> >>From: Deepak S <deepak.s at intel.com>
> >>
> >>When we enter RC6 and GFX Clocks are off, the voltage remains higher
> >>than Vmin. When we try to set the freq to RPn, it might fail since the
> >>Gfx clocks are down. So to fix this in Gfx idle, Bring the GFX clock up
> >>and set the freq to RPn then move GFx down.
> >>
> >>v2: remove vlv_update_rps_cur_delay function. Update commit message (Daniel)
> >>
> >>v3: Fix the timeout during wait for gfx clock (Jesse)
> >>
> >>v4: addressed comments on set freq and punit wait (Ville)
> >>
> >>v5: use wait_for while waiting for GFX clk to be up. (Daniel)
> >>     update cur_delay before requesting min_delay. (Ville)
> >>
> >>v6: use wait_for while waiting for punit. (Ville)
> >>
> >>Signed-off-by: Deepak S <deepak.s at intel.com>
> >>Reviewed-by: Ville Syrjä <ville.syrjala at linux.intel.com>
> >                           ^^
> >
> >Stuff missing from my name.
> Sorry Something got missed while uploading the patch :(

Fixed and patche merged, thanks.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch