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drm/radeon/kms: add dpm support for trinity asics

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This adds dpm support for trinity asics.  This includes:
- clockgating
- powergating
- dynamic engine clock scaling
- dynamic voltage scaling

set radeon.dpm=1 to enable it.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-04-12 16:40:41 -04:00
commit d70229f704
14 changed files with 2179 additions and 51 deletions
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