One more thing which relied on implicit dev_priv can be covnerted to use
the new mmio accessors.
Signed-off-by: NTvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024093440.32280-1-tvrtko.ursulin@linux.intel.com