Hey, > > > > I wanted to test the EM120 setup I have with latest MM git master and > > kernel 5.13.0-rc2, but unfortunately there is some issue, not sure if > > in device or in kernel driver. These are the kernel logs I get as > > output when the issue happens: > > > > [ 263.458712] mhi-pci-generic 0000:01:00.0: can't change power state > > from D3cold to D0 (config space inaccessible) > > [ 263.458727] mhi-pci-generic 0000:01:00.0: can't change power state > > from D3cold to D0 (config space inaccessible) > > [ 263.458736] mhi-pci-generic 0000:01:00.0: failed to resume device: -22 > > The problem seems to be with the runtime power management. MHI pci > driver is moving the device in low power state (suspend) when not used > for ~2s. And here device resume fails. How the EM120 is connected to > your machine is it via M2 laptop port or are you using a 'dev-board' > with PCI-express slot? can you share the firmware version? building > mainline right now and going to test that on my side. >
This is with a EM120 devkit in a PCI-express slot in my desktop PC, running firmware EM120RGLAPR02A07. I tested this setup some months ago with the "mhi_uci_q" driver from Quectel, and I didn't see any problem like this. -- Aleksander https://aleksander.es _______________________________________________ ModemManager-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
