drm/amd/powerplay: Enable/Disable NBPSTATE on On/OFF of UVD
commit 51ef434a upstream. We observe black lines (underflow) on display when playing a 4K video with UVD. On Disabling Low memory P state this issue is not seen. Multiple runs of power measurement shows no imapct. Signed-off-by: NAkshu Agrawal <akshu.agrawal@amd.com> Signed-off-by: NSatyajit Sahu <satyajit.sahu@amd.com> Acked-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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