tree b7f3a0b6389c4243cf26af0888ebd80925263f9c
parent f4b05d27ec6b032ca504591e2a157b058b6f172f
author Michael Heimpold <mhei@heimpold.de> 1461873974 +0200
committer David S. Miller <davem@davemloft.net> 1461961382 -0400

net: ethernet: enc28j60: support half-duplex SPI controllers

The current spi_read_buf function fails on SPI host masters which
are only half-duplex capable. Splitting the Tx and Rx part solves
this issue.

Tested on Raspberry Pi (full duplex) and I2SE Duckbill (half duplex).

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Signed-off-by: David S. Miller <davem@davemloft.net>