[PATCH v3] drm/i915/ilk: Don't disable SSC source if it's in use

On Tue, May 24, 2016 at 10:27:03AM -0400, Lyude wrote: > Thanks to Ville Syrjälä for pointing me towards the cause of this issue. > > Unfortunately one of the sideaffects of having the refclk for a DPLL set > to SSC is that as long as it's set to SSC, the GPU will prevent us from > powering down

[PATCH v3] drm/i915/ilk: Don't disable SSC source if it's in use

Thanks to Ville Syrjälä for pointing me towards the cause of this issue. Unfortunately one of the sideaffects of having the refclk for a DPLL set to SSC is that as long as it's set to SSC, the GPU will prevent us from powering down any of the pipes or transcoders using it. A couple of BIOSes ena