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authorShawn Guo <shawn.guo@linaro.org>2011-07-10 01:16:41 +0800
committerGrant Likely <grant.likely@secretlab.ca>2011-07-14 13:47:18 -0600
commit22a85e4cd51b49ec99703ddfdff8686d5442a093 (patch)
treeef8ba67b86bd74f67a5f14752a0edb7b72254291 /Documentation
parentc2387cb9e55f9c85ed33a5bf086f348312158133 (diff)
downloadop-kernel-dev-22a85e4cd51b49ec99703ddfdff8686d5442a093.zip
op-kernel-dev-22a85e4cd51b49ec99703ddfdff8686d5442a093.tar.gz
spi/imx: add device tree probe support
It adds device tree probe support for spi-imx driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt22
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
new file mode 100644
index 0000000..9841057
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
@@ -0,0 +1,22 @@
+* Freescale (Enhanced) Configurable Serial Peripheral Interface
+ (CSPI/eCSPI) for i.MX
+
+Required properties:
+- compatible : Should be "fsl,<soc>-cspi" or "fsl,<soc>-ecspi"
+- reg : Offset and length of the register set for the device
+- interrupts : Should contain CSPI/eCSPI interrupt
+- fsl,spi-num-chipselects : Contains the number of the chipselect
+- cs-gpios : Specifies the gpio pins to be used for chipselects.
+
+Example:
+
+ecspi@70010000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx51-ecspi";
+ reg = <0x70010000 0x4000>;
+ interrupts = <36>;
+ fsl,spi-num-chipselects = <2>;
+ cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+ <&gpio3 25 0>; /* GPIO4_25 */
+};
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