Device	S-state	  Status   Sysfs node
GP12	  S4	*disabled  pci:0000:00:07.1
GP13	  S4	*disabled  pci:0000:00:08.1
XHC0	  S4	*enabled   pci:0000:30:00.3
GP30	  S4	*disabled
GP31	  S4	*disabled
GPP0	  S4	*disabled
GPP2	  S4	*disabled
GPP3	  S4	*disabled
GPP8	  S4	*disabled  pci:0000:00:03.1