Squashed 'dts/upstream/' content from commit aaba2d45dc2a

git-subtree-dir: dts/upstream
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diff --git a/Bindings/phy/mediatek,mt7621-pci-phy.yaml b/Bindings/phy/mediatek,mt7621-pci-phy.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mediatek,mt7621-pci-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Mt7621 PCIe PHY
+
+maintainers:
+  - Sergio Paracuellos <sergio.paracuellos@gmail.com>
+
+properties:
+  compatible:
+    const: mediatek,mt7621-pci-phy
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 1
+    description: selects if the phy is dual-ported
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    pcie0_phy: pcie-phy@1e149000 {
+      compatible = "mediatek,mt7621-pci-phy";
+      reg = <0x1e149000 0x0700>;
+      clocks = <&sysc 0>;
+      #phy-cells = <1>;
+    };