From: Bjørn Mork <bjorn@xxxxxxx>
Date: Sat, 8 Feb 2020 15:50:36 +0100
> Commit f25e1392fdb5 removed the support for the pre-production variant
> of the Dell DW5821e to avoid probing another USB interface unnecessarily.
> However, the pre-production samples are found in the wild, and this lack
> of support is causing problems for users of such samples. It is therefore
> necessary to support both variants.
>
> Matching on both interfaces 0 and 1 is not expected to cause any problem
> with either variant, as only the QMI function will be probed successfully
> on either. Interface 1 will be rejected based on the HID class for the
> production variant:
...
> And interface 0 will be rejected based on too few endpoints for the
> pre-production variant:
...
> Fixes: f25e1392fdb5 ("qmi_wwan: fix interface number for DW5821e production firmware")
> Link: https://whrl.pl/Rf0vNk
> Reported-by: Lars Melin <larsm17@xxxxxxxxx>
> Cc: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
> Signed-off-by: Bjørn Mork <bjorn@xxxxxxx>
Applied and queued up for -stable.
