[Bug 60858] [radeon HD 4570m] Error setting UVD clocks

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https://bugzilla.kernel.org/show_bug.cgi?id=60858

--- Comment #10 from Christian König <christian.koenig@xxxxxxx> ---
Created attachment 108421
  --> https://bugzilla.kernel.org/attachment.cgi?id=108421&action=edit
Possible fix.

Please try the attached patch.

It just looks like the BIOS left the UPLL in an complete invalid state. Maybe
the following reset and reprogramming sequence gets us back to normal, but
apart from that I'm running out of ideas how to solve this.

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