Reported by Nikolaus Schaller, Sep 4, 2014
uses extcon-gpio (which has been fixed for DT). But does not work in a first test. Maybe the supply voltage is not enabled. I.e. detection works only if GPS is enabled. Or it is a bug in the DT extension of the driver (why are there separate irq-flags needed?)
Comment 2 by Nikolaus Schaller, Oct 22, 2014
Has been fixed: http://git.goldelico.com/?p=gta04-kernel.git;a=commit;h=aebcd83c9b4fd 4441758aad955fe3fe9e8ab166b
Comment 3 by Nikolaus Schaller, Oct 22, 2014
Since this is a duplicate and the antenna detect (ext con driver) does work, we close this issue.