scsi: ufs: qcom: dt-bindings: Split common part to qcom,ufs-common.yaml

The binding for Qualcomm SoC UFS controllers grew and it will grow
further.  It already includes several conditionals, partially for
difference in handling encryption block (ICE, either as phandle or as
I/O address space) but it will further grow for MCQ.

Prepare for splitting this one big binding into several ones for common
group of devices by defining common part for all Qualcomm UFS schemas.

This only moves code, no functional impact expected.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250731-dt-bindings-ufs-qcom-v2-1-53bb634bf95a@linaro.org
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Documentation/devicetree/bindings/ufs/qcom,ufs-common.yaml

@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ufs/qcom,ufs-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Universal Flash Storage (UFS) Controller Common Properties
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+properties:
+  clocks:
+    minItems: 7
+    maxItems: 9
+
+  clock-names:
+    minItems: 7
+    maxItems: 9
+
+  dma-coherent: true
+
+  interconnects:
+    minItems: 2
+    maxItems: 2
+
+  interconnect-names:
+    items:
+      - const: ufs-ddr
+      - const: cpu-ufs
+
+  iommus:
+    minItems: 1
+    maxItems: 2
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    items:
+      - const: ufsphy
+
+  power-domains:
+    maxItems: 1
+
+  required-opps:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  '#reset-cells':
+    const: 1
+
+  reset-names:
+    items:
+      - const: rst
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the RESET pin of the UFS memory device.
+
+allOf:
+  - $ref: ufs-common.yaml
+
+additionalProperties: true

Documentation/devicetree/bindings/ufs/qcom,ufs.yaml

@@ -47,39 +47,6 @@ properties:
       - const: qcom,ufshc
       - const: jedec,ufs-2.0
 
-  clocks:
-    minItems: 7
-    maxItems: 9
-
-  clock-names:
-    minItems: 7
-    maxItems: 9
-
-  dma-coherent: true
-
-  interconnects:
-    minItems: 2
-    maxItems: 2
-
-  interconnect-names:
-    items:
-      - const: ufs-ddr
-      - const: cpu-ufs
-
-  iommus:
-    minItems: 1
-    maxItems: 2
-
-  phys:
-    maxItems: 1
-
-  phy-names:
-    items:
-      - const: ufsphy
-
-  power-domains:
-    maxItems: 1
-
   qcom,ice:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: phandle to the Inline Crypto Engine node
@@ -93,30 +60,12 @@ properties:
       - const: std
       - const: ice
 
-  required-opps:
-    maxItems: 1
-
-  resets:
-    maxItems: 1
-
-  '#reset-cells':
-    const: 1
-
-  reset-names:
-    items:
-      - const: rst
-
-  reset-gpios:
-    maxItems: 1
-    description:
-      GPIO connected to the RESET pin of the UFS memory device.
-
 required:
   - compatible
   - reg
 
 allOf:
-  - $ref: ufs-common.yaml
+  - $ref: qcom,ufs-common.yaml
 
   - if:
       properties: