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-rw-r--r--dts/Bindings/spi/spi-xilinx.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/dts/Bindings/spi/spi-xilinx.txt b/dts/Bindings/spi/spi-xilinx.txt
index dc924a5f71..5f4ed3e5c9 100644
--- a/dts/Bindings/spi/spi-xilinx.txt
+++ b/dts/Bindings/spi/spi-xilinx.txt
@@ -8,7 +8,8 @@ Required properties:
number.
Optional properties:
-- xlnx,num-ss-bits : Number of chip selects used.
+- xlnx,num-ss-bits : Number of chip selects used.
+- xlnx,num-transfer-bits : Number of bits per transfer. This will be 8 if not specified
Example:
axi_quad_spi@41e00000 {
@@ -17,5 +18,6 @@ Example:
interrupts = <0 31 1>;
reg = <0x41e00000 0x10000>;
xlnx,num-ss-bits = <0x1>;
+ xlnx,num-transfer-bits = <32>;
};