From: Bjørn Mork <bj...@mork.no> Date: Fri, 25 May 2018 15:00:20 +0200
> SIMCOM are reusing a single device ID for many (all of their?) > different modems, based on different chipsets and firmwares. Newer > Qualcomm chipset generations require setting DTR to wake the QMI > function. The SIM7600E modem is using such a chipset, making it > fail to work with this driver despite the device ID match. > > Fix by unconditionally enabling the SET_DTR quirk for all SIMCOM > modems using this specific device ID. This is similar to what > we already have done for another case of device IDs recycled over > multiple chipset generations: 14cf4a771b30 ("drivers: net: usb: > qmi_wwan: add QMI_QUIRK_SET_DTR for Telit PID 0x1201") > > Initial testing on an older SIM7100 modem shows no immediate side > effects. > > Reported-by: Sebastian Sjoholm <sebastian.sjoh...@gmail.com> > Cc: Reinhard Speyerer <rs...@arcor.de> > Signed-off-by: Bjørn Mork <bj...@mork.no> Applied.