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In some cases we may receive a mode config that has a different CRTC<->encoder map that the current configuration. In that case, we need to disable any re-routed encoders before setting the mode, otherwise they may not pick up the new CRTC (if the output types are incompatible for example). Tested-by: Kristian Høgsberg <[email protected]> Signed-off-by: Jesse Barnes <[email protected]> Signed-off-by: Dave Airlie <[email protected]>