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spi/dt: DT bindings documentation: "num-cs" property for SPI controllers 

Several SPI controller drivers have defined differently named properties for
the number of chip selects.  Now adding "num-cs" as a reference name for new
bindings.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Roland Stigge 2012-08-22 15:49:19 +02:00 committed by Mark Brown
parent 6d3952a7df
commit 41962f90c6
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/spi/spi-bus.txt
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@ -21,6 +21,9 @@ assumption that board specific platform code will be used to manage
chip selects. Individual drivers can define additional properties to
support describing the chip select layout.
Optional property:
- num-cs : total number of chipselects
SPI slave nodes must be children of the SPI master node and can
contain the following properties.
- reg - (required) chip select address of device.