dt-bindings: display/msm: move common MDSS properties to mdss-common.yaml

Move properties common to all MDSS DT nodes to the mdss-common.yaml.

This extends qcom,msm8998-mdss schema to allow interconnect nodes, which
will be added later, once msm8998 gains interconnect support.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/508385/
Link: https://lore.kernel.org/r/20221024164225.3236654-6-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Documentation/devicetree/bindings/display/msm/mdss-common.yaml

@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/mdss-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display MDSS common properties
+
+maintainers:
+  - Krishna Manikandan <quic_mkrishn@quicinc.com>
+  - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+  - Rob Clark <robdclark@gmail.com>
+
+description:
+  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+  sub-blocks like DPU display controller, DSI and DP interfaces etc.
+
+properties:
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: mdss
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 3
+
+  clock-names:
+    minItems: 2
+    maxItems: 3
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#address-cells": true
+
+  "#size-cells": true
+
+  "#interrupt-cells":
+    const: 1
+
+  iommus:
+    minItems: 1
+    items:
+      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port0
+      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port1
+
+  ranges: true
+
+  interconnects:
+    minItems: 1
+    items:
+      - description: Interconnect path from mdp0 (or a single mdp) port to the data bus
+      - description: Interconnect path from mdp1 port to the data bus
+
+  interconnect-names:
+    minItems: 1
+    items:
+      - const: mdp0-mem
+      - const: mdp1-mem
+
+  resets:
+    items:
+      - description: MDSS_CORE reset
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - power-domains
+  - clocks
+  - interrupts
+  - interrupt-controller
+  - iommus
+  - ranges
+
+additionalProperties: true