Commit 210f65fe authored Oct 01, 2013 by Trent Piepho Committed by Mark Brown Oct 18, 2013

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>

parent 0b782f70

drivers/spi/spi-mxs.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -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.