hwrng: st - Provide DT bindings for ST's Random Number Generator

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/Documentation/devicetree/bindings/rng/st,rng.txt b/Documentation/devicetree/bindings/rng/st,rng.txt
new file mode 100644 (file)
index 0000000..dbc64e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/st,rng.txt
@@ -0,0 +1,15 @@
+STMicroelectronics HW Random Number Generator
+----------------------------------------------
+
+Required parameters:
+compatible     : Should be "st,rng"
+reg            : Base address and size of IP's register map.
+clocks         : Phandle to device's clock (See: ../clocks/clock-bindings.txt)
+
+Example:
+
+rng@0xfee80000 {
+       compatible      = "st,rng";
+       reg             = <0xfee80000 0x1000>;
+       clocks          = <&clk_sysin>;
+}