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| author | Lars-Peter Clausen <lars@metafoo.de> | 2012-12-06 16:55:33 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-12-07 13:13:56 +0000 |
| commit | c20151dff8a6d503c0d0cc4387c33a618cdabcb7 (patch) | |
| tree | 79eddf6e2d19950611613ce62d56db9a00e865fd /drivers/spi | |
| parent | 5323f49853ba5f37d9975fe6bd13546c2ec790c8 (diff) | |
| download | linux-c20151dff8a6d503c0d0cc4387c33a618cdabcb7.tar.gz linux-c20151dff8a6d503c0d0cc4387c33a618cdabcb7.tar.bz2 linux-c20151dff8a6d503c0d0cc4387c33a618cdabcb7.zip | |
spi: Add support for specifying 3-wire mode via device tree
This patch allows to specify that a SPI device is connected in 3-wire mode via
device tree.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index b370d292d19c..2ca5f079ff01 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -861,6 +861,8 @@ static void of_register_spi_devices(struct spi_master *master) spi->mode |= SPI_CPOL; if (of_find_property(nc, "spi-cs-high", NULL)) spi->mode |= SPI_CS_HIGH; + if (of_find_property(nc, "spi-3wire", NULL)) + spi->mode |= SPI_3WIRE; /* Device speed */ prop = of_get_property(nc, "spi-max-frequency", &len); |