dt-bindings: clock: Convert APM XGene clocks to DT schema

Convert the APM XGene clocks to DT schema. The device clock binding is
a bit different from the others, so put it in its own schema file.
Drop the examples.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250521004655.1792703-1-robh@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: robherring

Documentation/devicetree/bindings/clock/apm,xgene-device-clock.yaml

@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/apm,xgene-device-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene SoC device clocks
+
+maintainers:
+  - Khuong Dinh <khuong@os.amperecomputing.com>
+
+properties:
+  compatible:
+    const: apm,xgene-device-clock
+
+  reg:
+    minItems: 1
+    maxItems: 2
+
+  reg-names:
+    items:
+      - enum: [ csr-reg, div-reg ]
+      - const: div-reg
+    minItems: 1
+
+  clocks:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  clock-output-names:
+    maxItems: 1
+
+  clock-names:
+    maxItems: 1
+
+  csr-offset:
+    description: Offset to the CSR reset register
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  csr-mask:
+    description: CSR reset mask bit
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0xf
+
+  enable-offset:
+    description: Offset to the enable register
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 8
+
+  enable-mask:
+    description: CSR enable mask bit
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0xf
+
+  divider-offset:
+    description: Offset to the divider register
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  divider-width:
+    description: Width of the divider register
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  divider-shift:
+    description: Bit shift of the divider register
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+  - clock-output-names
+
+additionalProperties: false

Documentation/devicetree/bindings/clock/apm,xgene-socpll-clock.yaml

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/apm,xgene-socpll-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene SoC PLL, PCPPLL, and PMD clocks
+
+maintainers:
+  - Khuong Dinh <khuong@os.amperecomputing.com>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apm,xgene-pcppll-clock
+          - apm,xgene-pcppll-v2-clock
+          - apm,xgene-pmd-clock
+          - apm,xgene-socpll-clock
+          - apm,xgene-socpll-v2-clock
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    items:
+      - enum: [ csr-reg, div-reg ]
+      - const: div-reg
+    minItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    enum: [ pcppll, socpll ]
+
+  "#clock-cells":
+    const: 1
+
+  clock-output-names:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+  - clock-output-names
+
+additionalProperties: false