drm/radeon: fix HDMI quantization_range for pre-DCE5 asics
Support for output_csc is only available on DCE5 and newer so
don't mess with the HDMI quantization_range on pre-DCE5 asics.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=83226
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent
92cffd56
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