In order to add a secondary AT port to the Telit FN990 first add "DUN2" to mhi_wwan_ctrl.c, after that add a seconday AT port to the Telit FN990 in pci_generic.c Fabio Porcedda (2): net: wwan: mhi_wwan_ctrl: Add DUN2 to have a secondary AT port bus: mhi: host: pci_generic: Add a secondary AT port to Telit FN990 drivers/bus/mhi/host/pci_generic.c | 2 ++ drivers/net/wwan/mhi_wwan_ctrl.c | 1 + 2 files changed, 3 insertions(+) -- 2.37.3