crypto: sunxi-ss - Document optional reset control bindings

Later Allwinner SoCs split out the reset controls for individual modules
out of the clock gate controls. The "Security System" crypto engine is
no different.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/Documentation/devicetree/bindings/crypto/sun4i-ss.txt b/Documentation/devicetree/bindings/crypto/sun4i-ss.txt
index 1e02d177fea6512100bf31cd04283f405fd3d285..5d38e9b7033f00942367232ef64b1eb81584b188 100644 (file)
--- a/Documentation/devicetree/bindings/crypto/sun4i-ss.txt
+++ b/Documentation/devicetree/bindings/crypto/sun4i-ss.txt
@@ -9,6 +9,10 @@ Required properties:
        * "ahb" : AHB gating clock
        * "mod" : SS controller clock
 
+Optional properties:
+ - resets : phandle + reset specifier pair
+ - reset-names : must contain "ahb"
+
 Example:
        crypto: crypto-engine@01c15000 {
                compatible = "allwinner,sun4i-a10-crypto";