spi: Add OF binding support for SPI busses
This patch adds support for populating an SPI bus based on data in the
OF device tree. This is useful for powerpc platforms which use the
device tree instead of discrete code for describing platform layout.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 1d7ec31..f821dbc 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -13,3 +13,9 @@
depends on PPC_OF && I2C
help
OpenFirmware I2C accessors
+
+config OF_SPI
+ def_tristate SPI
+ depends on OF && PPC_OF && SPI
+ help
+ OpenFirmware SPI accessors