at86rf230: fix __at86rf230_read_subreg function
authorAlexander Aring <alex.aring@gmail.com>
Mon, 14 Apr 2014 16:48:02 +0000 (18:48 +0200)
committerDavid S. Miller <davem@davemloft.net>
Tue, 15 Apr 2014 04:08:22 +0000 (00:08 -0400)
commit2168746cfc075d004fd7044be706054fceb24e59
treec58fab342333214d95638de5239fe4786f36e88e
parentbb78864a0c3c55461fc757c0c4b674f409518325
at86rf230: fix __at86rf230_read_subreg function

The __at86rf230_read_subreg function don't mask and shift register
contents which it should do. This patch adds the necessary masks and
shift operations in this function.

Since we have csma support this can make some trouble on state changes.
Since CSMA support turned on some bits in the TRX_STATUS register that
used to be zero, not masking broke checking of the TRX_STATUS field
after commanding a state change.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ieee802154/at86rf230.c