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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 /Documentation/devicetree/bindings/spi/spi-bus.txt | |
| parent | 5323f49853ba5f37d9975fe6bd13546c2ec790c8 (diff) | |
| download | linux-c20151dff8a6d503c0d0cc4387c33a618cdabcb7.tar.gz | |
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 'Documentation/devicetree/bindings/spi/spi-bus.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi-bus.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt index 77a8b0d39b54..296015e3c632 100644 --- a/Documentation/devicetree/bindings/spi/spi-bus.txt +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt @@ -53,6 +53,8 @@ contain the following properties. shifted clock phase (CPHA) mode - spi-cs-high - (optional) Empty property indicating device requires chip select active high +- spi-3wire - (optional) Empty property indicating device requires + 3-wire mode. If a gpio chipselect is used for the SPI slave the gpio number will be passed via the cs_gpio |