[PATCH v4 1/2] dt-bindings: rng: bcm2835: document reset support

[Álvaro Fernández Rojas]

Some devices may need to perform a reset before using the RNG, such as the
BCM6368.

Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
---
 v4: pass dt_binding_check.
 v3: make resets required if brcm,bcm6368-rng.
 v2: document reset support.

 .../devicetree/bindings/rng/brcm,bcm2835.yaml      | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml b/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml
index c147900f9041..9a74b5af1dbd 100644
--- a/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml
+++ b/Documentation/devicetree/bindings/rng/brcm,bcm2835.yaml
@@ -31,12 +31,24 @@ properties:
   interrupts:
     maxItems: 1
 
+  resets:
+    maxItems: 1
+
 required:
   - compatible
   - reg
 
 additionalProperties: false
 
+if:
+  properties:
+    compatible:
+      enum:
+        - brcm,bcm6368-rng
+then:
+  required:
+    - resets
+
 examples:
   - |
     rng at 7e104000 {
@@ -58,4 +70,6 @@ examples:
 
         clocks = <&periph_clk 18>;
         clock-names = "ipsec";
+
+        resets = <&periph_rst 4>;
     };
-- 
2.20.1