dt-bindings: phy: Convert marvell,berlin2-sata-phy to DT schema

Convert the Marvell Berlin2 SATA PHY binding to DT schema format. It's a
straight forward conversion.

Signed-off-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

Documentation/devicetree/bindings/phy/berlin-sata-phy.txt

···
-Berlin SATA PHY
----------------
-
-Required properties:
-- compatible: should be one of
-    "marvell,berlin2-sata-phy"
-    "marvell,berlin2q-sata-phy"
-- address-cells: should be 1
-- size-cells: should be 0
-- phy-cells: from the generic PHY bindings, must be 1
-- reg: address and length of the register
-- clocks: reference to the clock entry
-
-Sub-nodes:
-Each PHY should be represented as a sub-node.
-
-Sub-nodes required properties:
-- reg: the PHY number
-
-Example:
-	sata_phy: phy@f7e900a0 {
-		compatible = "marvell,berlin2q-sata-phy";
-		reg = <0xf7e900a0 0x200>;
-		clocks = <&chip CLKID_SATA>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		#phy-cells = <1>;
-
-		sata-phy@0 {
-			reg = <0>;
-		};
-
-		sata-phy@1 {
-			reg = <1>;
-		};
-	};

Documentation/devicetree/bindings/phy/marvell,berlin2-sata-phy.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/marvell,berlin2-sata-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Berlin SATA PHY
+
+maintainers:
+  - Antoine Tenart <[e-mail]>
+
+properties:
+  compatible:
+    enum:
+      - marvell,berlin2-sata-phy
+      - marvell,berlin2q-sata-phy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  '#phy-cells':
+    const: 1
+
+patternProperties:
+  '^sata-phy@[0-1]$':
+    description: A SATA PHY sub-node.
+    type: object
+    additionalProperties: false
+
+    properties:
+      reg:
+        maximum: 1
+        description: PHY index number.
+
+    required:
+      - reg
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#address-cells'
+  - '#size-cells'
+  - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/berlin2q.h>
+
+    phy@f7e900a0 {
+        compatible = "marvell,berlin2q-sata-phy";
+        reg = <0xf7e900a0 0x200>;
+        clocks = <&chip CLKID_SATA>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        #phy-cells = <1>;
+
+        sata-phy@0 {
+            reg = <0>;
+        };
+
+        sata-phy@1 {
+            reg = <1>;
+        };
+    };