From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 26 Mar 2014 11:22:08 +0000 (+0800)
Subject: spi: omap-uwire: Remove full duplex check
X-Git-Tag: v3.15-rc1~147^2~3^2~1
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d7a7f6ec14fb07ed9c1167db760bc535b742b382;p=linux.git

spi: omap-uwire: Remove full duplex check

This driver sets the SPI_MASTER_HALF_DUPLEX flag, so the spi core will check
transfers to ensure they are not full duplex.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 95cc6948a2ba..f5176bbfa6f1 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -218,10 +218,6 @@ static int uwire_txrx(struct spi_device *spi, struct spi_transfer *t)
 	if (!t->tx_buf && !t->rx_buf)
 		return 0;
 
-	/* Microwire doesn't read and write concurrently */
-	if (t->tx_buf && t->rx_buf)
-		return -EPERM;
-
 	w = spi->chip_select << 10;
 	w |= CS_CMD;