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authorZhao Qiang <B45475@freescale.com>2014-04-01 11:10:50 +0200
committerMark Brown <broonie@linaro.org>2014-04-14 18:17:01 +0200
commitcd6339e6ced387ad67b5551dd2931cfd7e8b970b (patch)
treec3222a2ff83afd95c9cd48a6cc602222298dd362 /drivers/spi/spi.c
parentLinux 3.15-rc1 (diff)
downloadlinux-cd6339e6ced387ad67b5551dd2931cfd7e8b970b.tar.xz
linux-cd6339e6ced387ad67b5551dd2931cfd7e8b970b.zip
spi: add "spi-lsb-first" to devicetree
add optional property devicetree for SPI slave nodes into devicetree so that LSB mode can be enabled by devicetree. Signed-off-by: Zhao Qiang <B45475@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi.c')
-rw-r--r--drivers/spi/spi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 4eb9bf02996c..214045c04705 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1234,6 +1234,8 @@ static void of_register_spi_devices(struct spi_master *master)
spi->mode |= SPI_CS_HIGH;
if (of_find_property(nc, "spi-3wire", NULL))
spi->mode |= SPI_3WIRE;
+ if (of_find_property(nc, "spi-lsb-first", NULL))
+ spi->mode |= SPI_LSB_FIRST;
/* Device DUAL/QUAD mode */
if (!of_property_read_u32(nc, "spi-tx-bus-width", &value)) {