dt-bindings: rng: exynos4-rng: Convert Exynos PRNG bindings to json-schema

Convert Samsung Exynos Pseudo Random Number Generator bindings to DT
schema format using json-schema.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt
deleted file mode 100644 (file)
index a13fbdb..0000000
--- a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Exynos Pseudo Random Number Generator
-
-Required properties:
-
-- compatible  : One of:
-                - "samsung,exynos4-rng" for Exynos4210 and Exynos4412
-                - "samsung,exynos5250-prng" for Exynos5250+
-- reg         : Specifies base physical address and size of the registers map.
-- clocks      : Phandle to clock-controller plus clock-specifier pair.
-- clock-names : "secss" as a clock name.
-
-Example:
-
-       rng@10830400 {
-               compatible = "samsung,exynos4-rng";
-               reg = <0x10830400 0x200>;
-               clocks = <&clock CLK_SSS>;
-               clock-names = "secss";
-       };

diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml
new file mode 100644 (file)
index 0000000..3362cb1
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/samsung,exynos4-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Pseudo Random Number Generator
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynos4-rng                   # for Exynos4210 and Exynos4412
+      - samsung,exynos5250-prng               # for Exynos5250+
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: secss
+
+required:
+  - compatible
+  - reg
+  - clock-names
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos4.h>
+
+    rng@10830400 {
+        compatible = "samsung,exynos4-rng";
+        reg = <0x10830400 0x200>;
+        clocks = <&clock CLK_SSS>;
+        clock-names = "secss";
+    };

diff --git a/MAINTAINERS b/MAINTAINERS
index 320fc8b..6f88122 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14212,7 +14212,7 @@ L:      linux-crypto@vger.kernel.org
 L:     linux-samsung-soc@vger.kernel.org
 S:     Maintained
 F:     drivers/crypto/exynos-rng.c
-F:     Documentation/devicetree/bindings/rng/samsung,exynos4-rng.txt
+F:     Documentation/devicetree/bindings/rng/samsung,exynos4-rng.yaml
 
 SAMSUNG EXYNOS TRUE RANDOM NUMBER GENERATOR (TRNG) DRIVER
 M:     Łukasz Stelmach <l.stelmach@samsung.com>