
Comment 2 by Nikolaus Schaller, Feb 7, 2014
It should even be defined as a regulator so that we can simply use it like wwan-rfkill { compatible = "rfkill-regulator"; label = "WWAN"; type = <RFKILL_TYPE_WWAN>; vrfkill-supply = <&this-new-regulator>; };

Comment 3 by Nikolaus Schaller, Apr 10, 2014
a device tree entry has already been prepared.
Labels:
Priority:Medium
Milestone:3.15
Priority:Critical
Milestone:3.14

Comment 4 by Nikolaus Schaller, Jun 1, 2014
Preliminary driver has been added. Has no real function yet.

Comment 6 by Nikolaus Schaller, Sep 6, 2014
The driver should now have minimal functionality for the GTA04A4: It reacts to rfkill unblock wwan and tells on dmesg about sending impulses. But I don't see the modem on the internal USB. This might as well be a problem of the UAB2-PHY and not related to this driver.

Comment 7 by Nikolaus Schaller, Nov 5, 2014
The problem was that the gpio was not initialized correctly. So we only need the USB-PHY state feedback. And a new feature: a "poweroff" command should turn off the modem before halting the CPU. So we should register and handle that event as well. And the modem should stay on only if the CPU is in suspend.
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Reported by Nikolaus Schaller, Jan 26, 2014