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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-02-19 14:38:23 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-02-19 14:38:23 +1100
commit87d31345c0a90ccdf185feed9923ed14764f45dc (patch)
tree2816764e59f93379e0e3843fa0c417aafe02c503 /Documentation/powerpc/dts-bindings/fsl/spi.txt
parente98efaf303ccbff11522a054d155593d7f2bb41f (diff)
parentd24720a45ad2928f687c6371482cdfba19b74fc5 (diff)
Merge commit 'gcl/next' into next
Diffstat (limited to 'Documentation/powerpc/dts-bindings/fsl/spi.txt')
-rw-r--r--Documentation/powerpc/dts-bindings/fsl/spi.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/powerpc/dts-bindings/fsl/spi.txt b/Documentation/powerpc/dts-bindings/fsl/spi.txt
index e7d9a344c4f..80510c018ee 100644
--- a/Documentation/powerpc/dts-bindings/fsl/spi.txt
+++ b/Documentation/powerpc/dts-bindings/fsl/spi.txt
@@ -13,6 +13,11 @@ Required properties:
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
+Optional properties:
+- gpios : specifies the gpio pins to be used for chipselects.
+ The gpios will be referred to as reg = <index> in the SPI child nodes.
+ If unspecified, a single SPI device without a chip select can be used.
+
Example:
spi@4c0 {
cell-index = <0>;
@@ -21,4 +26,6 @@ Example:
interrupts = <82 0>;
interrupt-parent = <700>;
mode = "cpu";
+ gpios = <&gpio 18 1 // device reg=<0>
+ &gpio 19 1>; // device reg=<1>
};