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The dce110_hwseq is used by all DCE hardware, so add the DAC support here. When enabling/disabling a stream for a RGB signal, this will call the VBIOS to enable/disable the DAC. Additionally, when applying the controller context, call SelectCRTC_Source from VBIOS in order to direct the CRTC output to the DAC. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>