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e0cce12251
[Why] The eDP retrain will cause the DPCD 300 to be reset to default. And cause the brightness can't be set correctly. [How] delete the call to edp panel power control in both enable_link_output/disable_link_output entirely and only call edp panel control in enable_link_dp and disable_link_dp once. Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Jingwen Zhu <Jingwen.Zhu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>