drm/radeon: re-enable sw ACR support on pre-DCE4
authorAlex Deucher <alexander.deucher@amd.com>
Thu, 10 Oct 2013 15:47:01 +0000 (11:47 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 10 Oct 2013 15:47:01 +0000 (11:47 -0400)
HW ACR support may have issues on some older chips, so
use SW ACR for now until we've tested further.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: Rafał Miłecki <zajec5@gmail.com>

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