[PATCH 4.19 179/205] drm/amd/powerplay: Enable/Disable NBPSTATE on On/OFF of UVD

4.19-stable review patch. If anyone has any objections, please let me know. -- From: Akshu Agrawal commit 51ef434a15b450bfbef1e06cc87ee4e98a224486 upstream. We observe black lines (underflow) on display when playing a 4K video with UVD. On Disabling Low memory P state this

[PATCH 4.19 179/205] drm/amd/powerplay: Enable/Disable NBPSTATE on On/OFF of UVD

4.19-stable review patch. If anyone has any objections, please let me know. -- From: Akshu Agrawal commit 51ef434a15b450bfbef1e06cc87ee4e98a224486 upstream. We observe black lines (underflow) on display when playing a 4K video with UVD. On Disabling Low memory P state this