NFC: trf7970a: Reread FIFO Status Register when draining FIFO

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Receiving an interrupt whose Interrupt Status Register
value has only the SRX bit set is supposed to mean that
all of the data from the tag has been received.  That
turns out to not be true so we need to reread the FIFO
Status Register to tell if there are any new bytes in
the FIFO.  If there are, continue receiving them; if
there aren't, assume that the receive is complete and
pass the data up.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

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Mark A. Greer 2014-09-02 15:12:31 -07:00 • committed by Samuel Ortiz

parent bece3c544f

commit 5d8f759424

1 changed files with 15 additions and 0 deletions

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drivers/nfc/trf7970a.c

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