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| author | Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> | 2015-01-28 15:23:43 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-01-28 22:42:42 +0300 |
| commit | 5b74d7a3b888fd3db6dce77eb11b3d55b64f6833 (patch) | |
| tree | 5ecaf023a3b8acb1210224ac663c2275e29e866d /drivers/spi | |
| parent | a87cbca0acef0b1f57e4b216f1965468ee521cd3 (diff) | |
| download | linux-5b74d7a3b888fd3db6dce77eb11b3d55b64f6833.tar.xz | |
spi/xilinx: Use cached value of register
The control register has not changed since the previous access.
Therefore we can use the cached value and safe one bus access.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-xilinx.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index a0f7c9d4a349..12b311ed9bfa 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -271,7 +271,6 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) * transmitter while the Isr refills the transmit register/FIFO, * or make sure it is stopped if we're done. */ - cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET); xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT, xspi->regs + XSPI_CR_OFFSET); |