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(parent: 38b4eb1) | patch
NFC: trf7970a: Clear possible spurious interrupt before transmitting
authorMark A. Greer <mgreer@animalcreek.com>
Tue, 2 Sep 2014 22:12:26 +0000 (15:12 -0700)
committerSamuel Ortiz <sameo@linux.intel.com>
Sun, 7 Sep 2014 21:13:43 +0000 (23:13 +0200)
commitaff0564aa7b2118a1d76dc0118dfdbf4beaf4b8c
tree98bcfb841f90f785944687d1373546f9dc72ef2btree | snapshot (tar.gz zip)
parent38b4eb1f7fa87079a5a40f5d2ec4b5c0c7f14a4bcommit | diff
NFC: trf7970a: Clear possible spurious interrupt before transmitting

The trf7970a occasionally generates spurious interrupts
which can confuse the driver.  To help alleviate this,
clear any interrupts by reading the 'IRQ Status Register'
before starting a new transaction.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
drivers/nfc/trf7970a.c diff | blob | blame | history