Dell XPS 11: wifi stops working after suspend/resume

[Sergey]

Release: Linux Mint 16 "petra"
Edition: MATE 64-bit

Some times (but definitely not every time) wifi does not wake up after suspend on Dell XPS 11.

Steps to reproduce:
1. Install Linux Mint 16 Mate 64-bit on Dell XPS 11
2. Enable suspend in power properties
3. Let system to suspend
4. Wake the system up and see if wifi works.
5. Repeat steps 3-5 until wifi stops working after wake-up

Expected behaviour:
wifi should continue working after resume 100% of the time, no exceptions.

The following workaround seems to help:

/etc/pm/config.d/config:
-------------------------------
SUSPEND_MODULES="iwlwifi"
-------------------------------