I think maybe it is a system power saving issue....
In the past if the BIOS(config space) not set L1-substate, our driver will keep drive low CLKREQ# when HOST want to enter power saving state that make whole system not enter the power saving state.
But this patch we release the CLKREQ# to HOST, make whole system can enter power saving state success when the HOST want to enter the power saving state, but I don't know why your system can not wake out success from power saving stat on the platform
Ricky