aboutsummaryrefslogtreecommitdiffstats
path: root/ipc/msg.c
diff options
context:
space:
mode:
authorQipan Li <Qipan.Li@csr.com>2014-04-14 02:30:01 -0400
committerMark Brown <broonie@linaro.org>2014-04-14 16:04:59 -0400
commitbf83fd6402a856eeb9a22c364c50ccf9bbdf9b17 (patch)
tree905fe272f9d08fff5e4483294b8e96c6b26e59e6 /ipc/msg.c
parentd77ec5df47696300b9498e6973dcc34b40de8d27 (diff)
spi: sirf: fix spi full-duplex DMA transferring issue
sometimes t->tx can be equal with t->rx. for example, spidev will make tx and rx point to spidev->buffer at the same time. currently, for this case, we map the buffer BIDIRECTION to fix the cache consistency. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'ipc/msg.c')
0 files changed, 0 insertions, 0 deletions