On 2015/11/11 4:56, Wei Huang wrote: > >> >> Compared with v1, this version doesn't work with system_powerdown >> command. In my setup, the testing environment is exactly same for both >> v1 and v2. So something changed in v2 caused system_powerdown fail to work. >> > > I found this was caused by the change of "_HID" name for GPIO device. It > was changed from "LNRO0009" (v1) to "ARMH0061" (v2), which doesn't match > with my stock guest kernel PL061 driver. After changing the guest > kernel, it is working again. So: > Hi Wei,
Thanks very much for your help. The reason why I change the _HID is based on the _HID 0f PL011 which is ARMH0011. About the _HID of ARM company's devices, I have to say that I didn't see which _HID they should be at any public place. I heard(maybe it's not correct) there is a _HID list of ARM devices. If so, I think ARM should publish them in public, otherwise the only thing we can do is to guess or refer to existing _HID. BTW, I think you could use this kernel patches[1] which adds ACPI support for AMBA device and drop the previous one. [1] https://lkml.org/lkml/2015/9/30/392 > Tested-by: Wei Huang <w...@redhat.com> > > I will provide reviews to each individual patches. > Thanks again. :) -- Shannon
