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 mxs driver as well.
Signed-off-by: Trent Piepho <tpie...@gmail.com>
Cc: Marek Vasut <ma...@denx.de>
Cc: Fabio Estevam <fabio.este...@freescale.com>
Cc: Shawn Guo <shawn....@linaro.org>
---
drivers/spi/spi-mxs.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index ad3fd9c..208de97 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -412,12 +412,6 @@ 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.
--
1.7.10.4
------------------------------------------------------------------------------
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