diff options
| author | Trent Piepho <tpiepho@gmail.com> | 2013-10-01 22:15:11 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-10-18 02:00:30 +0200 |
| commit | 210f65fedf1d26d0a1d604fa82425018f7ad6090 (patch) | |
| tree | dc9b845ea140e38b4bbae5a7ff5b9ea55de9f900 /drivers | |
| parent | spi: spi-mxs: Fix chip select control bits in DMA mode (diff) | |
| download | linux-210f65fedf1d26d0a1d604fa82425018f7ad6090.tar.xz linux-210f65fedf1d26d0a1d604fa82425018f7ad6090.zip | |
spi: spi-mxs: Remove full duplex check, spi core already does it
Because the driver sets the SPI_MASTER_HALF_DUPLEX flag, the spi core
will check transfers to insure they are not full duplex. It's not
necessary to check that in the spi-mxs driver as well.
Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-mxs.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index a9a273e20fd2..de7387ef25b8 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -399,12 +399,6 @@ static int mxs_spi_transfer_one(struct spi_master *master, /* De-assert on last transfer, inverted by cs_change flag */ flag = (&t->transfer_list == m->transfers.prev) ^ t->cs_change ? TXRX_DEASSERT_CS : 0; - if ((t->rx_buf && t->tx_buf) || (t->rx_dma && t->tx_dma)) { - dev_err(ssp->dev, - "Cannot send and receive simultaneously\n"); - status = -EINVAL; - break; - } /* * Small blocks can be transfered via PIO. |