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-rw-r--r--dts/Bindings/spi/spi-pxa2xx.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/dts/Bindings/spi/spi-pxa2xx.txt b/dts/Bindings/spi/spi-pxa2xx.txt
index 0335a9bd2e..e30e0c2a4b 100644
--- a/dts/Bindings/spi/spi-pxa2xx.txt
+++ b/dts/Bindings/spi/spi-pxa2xx.txt
@@ -11,6 +11,9 @@ Required properties:
Optional properties:
- cs-gpios: list of GPIO chip selects. See the SPI bus bindings,
Documentation/devicetree/bindings/spi/spi-bus.txt
+- spi-slave: Empty property indicating the SPI controller is used in slave mode.
+- ready-gpios: GPIO used to signal a SPI master that the FIFO is filled
+ and we're ready to service a transfer. Only useful in slave mode.
Child nodes represent devices on the SPI bus
See ../spi/spi-bus.txt