spi/s3c64xx: Factor transfer start out of enable/disable_cs()

The hardware level /CS handling is tied to the start of the data path so
is rolled into the same function as we use to manipulate GPIO /CS. In
order to support factoring out the /CS handling into the core separate the
two and explicitly start transfers separately to the /CS handling.

Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/spi/spi-s3c64xx.c

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index e631232..8e732a1 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -927,6 +927,9 @@
 		/* Start the signals */
 		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 
+		/* Start the signals */
+		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
+
 		spin_unlock_irqrestore(&sdd->lock, flags);
 
 		status = wait_for_xfer(sdd, xfer, use_dma);