crypto: ccp - CCP device bindings documentation

This patch provides the documentation of the device bindings
for the AMD Cryptographic Coprocessor driver.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/Documentation/devicetree/bindings/crypto/amd-ccp.txt b/Documentation/devicetree/bindings/crypto/amd-ccp.txt
new file mode 100644 (file)
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+++ b/Documentation/devicetree/bindings/crypto/amd-ccp.txt
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+* AMD Cryptographic Coprocessor driver (ccp)
+
+Required properties:
+- compatible: Should be "amd,ccp-seattle-v1a"
+- reg: Address and length of the register set for the device
+- interrupt-parent: Should be the phandle for the interrupt controller
+  that services interrupts for this device
+- interrupts: Should contain the CCP interrupt
+
+Example:
+       ccp@e0100000 {
+               compatible = "amd,ccp-seattle-v1a";
+               reg = <0 0xe0100000 0 0x10000>;
+               interrupt-parent = <&gic>;
+               interrupts = <0 3 4>;
+       };