Here is Qualcomm crypto driver device tree binding documentation
to used as a reference example.

Signed-off-by: Stanimir Varbanov <svarba...@mm-sol.com>
---
 .../devicetree/bindings/crypto/qcom-qce.txt        | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/qcom-qce.txt

diff --git a/Documentation/devicetree/bindings/crypto/qcom-qce.txt 
b/Documentation/devicetree/bindings/crypto/qcom-qce.txt
new file mode 100644
index 000000000000..7ec67c90d2d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/qcom-qce.txt
@@ -0,0 +1,25 @@
+Qualcomm crypto engine driver
+
+Required properties:
+
+- compatible  : should be "qcom,crypto-v5.1"
+- reg         : specifies base physical address and size of the registers map
+- clocks      : phandle to clock-controller plus clock-specifier pair
+- clock-names : "iface" clocks register interface
+               "bus" clocks data transfer interface
+               "core" clocks reset of the crypto block
+- dmas        : DMA specifiers for tx and rx dma channels. For more see
+               Documentation/devicetree/bindings/dma/dma.txt
+- dma-names   : DMA request names should be "rx" and "tx"
+
+Example:
+       crypto@fd45a000 {
+               compatible = "qcom,crypto-v5.1";
+               reg = <0xfd45a000 0x6000>;
+               clocks = <&gcc GCC_CE2_AHB_CLK>,
+                        <&gcc GCC_CE2_AXI_CLK>,
+                        <&gcc GCC_CE2_CLK>;
+               clock-names = "iface", "bus", "core";
+               dmas = <&cryptobam 2>, <&cryptobam 3>;
+               dma-names = "rx", "tx";
+       };
-- 
1.8.4.4

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