[Intel-gfx] [PATCH 14/18] drm/i915/hsw, bdw: Wait for the power well disabled state

[Arkadiusz Hiler]

On Thu, Jul 06, 2017 at 05:40:36PM +0300, Imre Deak wrote:
> Similarly to GEN9+ waiting for the power well disabled state is a safer
> option and also provides diagnostic info if the disabling didn't succeed
> or the power well was forced on by an external requester. While at it
> also use the existing GEN9+ helper to wait for the enabled state.
> 
> Signed-off-by: Imre Deak <imre.deak at intel.com>
Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler at intel.com>