dt-bindings: omap: ti,prm-inst: Convert to DT schema

Convert prm-inst binding to DT schema. Use the closest matching standard
node name in the example.

Signed-off-by: Andreas Kemnade <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Rob Herring (Arm) <[e-mail]>

Documentation/devicetree/bindings/arm/omap/prm-inst.txt

···
-OMAP PRM instance bindings
-
-Power and Reset Manager is an IP block on OMAP family of devices which
-handle the power domains and their current state, and provide reset
-handling for the domains and/or separate IP blocks under the power domain
-hierarchy.
-
-Required properties:
-- compatible:	Must contain one of the following:
-		"ti,am3-prm-inst"
-		"ti,am4-prm-inst"
-		"ti,omap4-prm-inst"
-		"ti,omap5-prm-inst"
-		"ti,dra7-prm-inst"
-		and additionally must contain:
-		"ti,omap-prm-inst"
-- reg:		Contains PRM instance register address range
-		(base address and length)
-
-Optional properties:
-- #power-domain-cells:	Should be 0 if the instance is a power domain provider.
-- #reset-cells:	Should be 1 if the PRM instance in question supports resets.
-
-Example:
-
-prm_dsp2: prm@1b00 {
-	compatible = "ti,dra7-prm-inst", "ti,omap-prm-inst";
-	reg = <0x1b00 0x40>;
-	#power-domain-cells = <0>;
-	#reset-cells = <1>;
-};

Documentation/devicetree/bindings/arm/ti/ti,omap-prm-inst.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/ti/ti,omap-prm-inst.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OMAP PRM instances
+
+maintainers:
+  - Aaro Koskinen <[e-mail]>
+  - Andreas Kemnade <[e-mail]>
+  - Kevin Hilman <[e-mail]>
+  - Roger Quadros <[e-mail]>
+  - Tony Lindgren <[e-mail]>
+
+description:
+  Power and Reset Manager is an IP block on OMAP family of devices which
+  handle the power domains and their current state, and provide reset
+  handling for the domains and/or separate IP blocks under the power domain
+  hierarchy.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - ti,am3-prm-inst
+          - ti,am4-prm-inst
+          - ti,omap4-prm-inst
+          - ti,omap5-prm-inst
+          - ti,dra7-prm-inst
+      - const: ti,omap-prm-inst
+
+  reg:
+    maxItems: 1
+
+  "#power-domain-cells":
+    const: 0
+
+  "#reset-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    reset-controller@1b00 {
+        compatible = "ti,dra7-prm-inst", "ti,omap-prm-inst";
+        reg = <0x1b00 0x40>;
+        #power-domain-cells = <0>;
+        #reset-cells = <1>;
+    };