This commit provides the description of new property: "fsl,spi-slave-mode"
which enables support for DSPI driver working in slave mode.
As the new compatible shall be used with SPI bus equipped with master
device a new "spidev" based node has been introduced to avoid confusion.
Signed-off-by: Lukasz Majewski <lukma@xxxxxxx>
---
Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
index 18eeafe359d8..b30af19a2bc5 100644
--- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
@@ -26,6 +26,7 @@ Optional SPI properties for slave nodes:
- fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock
signal and deactivating chip select, at the end of a transfer.
- bus-num : the slave chip chipselect signal number.
+- fsl,spi-slave-mode: if present, controller runs in slave mode.
Example:
@@ -56,6 +57,13 @@ dspi0@4002c000 {
fsl,spi-cs-sck-delay = <100>;
fsl,spi-sck-cs-delay = <50>;
};
+
+ spidev3@1 {
+ compatible = "fsl,vf610-dspi";
+ spi-max-frequency = <30000000>;
+ reg = <1>;
+ fsl,spi-slave-mode;
+ };
};
--
2.11.0
