3dd7b97458
It looks like frobbing the cmnreset line on pne PHY disturbs the other PHY on chv. The result is a black screen. On HDMI it's just a flash of black, but DP usually falls over and can't get back up. As a workaround set up the power domains so that both common lane wells power up and down together. I also tried leaving the cmnreset deasserted even the if the power well goes down but that didn't seem acceptable to the PHY. Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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