dt-bindings: PCI: qcom,pcie-apq8084: Move APQ8084 to dedicated schema

Move APQ8084 PCIe devices from qcom,pcie.yaml binding to a dedicated
file to make reviewing and maintenance easier.

New schema is equivalent to the old one with few changes:
 - Adding a required compatible, which is actually redundant.
 - Drop the really obvious comments next to clock/reg/reset-names items.

After moving the qcom,pcie.yaml becames empty thus can be entirely
removed.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251217-dt-bindings-pci-qcom-v2-12-873721599754@oss.qualcomm.com

Author: krzk

Documentation/devicetree/bindings/pci/qcom,pcie-apq8084.yaml

@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/qcom,pcie-apq8084.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm APQ8084 PCI Express Root Complex
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Manivannan Sadhasivam <mani@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - qcom,pcie-apq8084
+
+  reg:
+    minItems: 4
+    maxItems: 5
+
+  reg-names:
+    minItems: 4
+    items:
+      - const: parf
+      - const: dbi
+      - const: elbi
+      - const: config
+      - const: mhi
+
+  clocks:
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: iface # Configuration AHB clock
+      - const: master_bus # Master AXI clock
+      - const: slave_bus # Slave AXI clock
+      - const: aux
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    items:
+      - const: msi
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    items:
+      - const: core
+
+  vdda-supply:
+    description: A phandle to the core analog power supply
+
+required:
+  - power-domains
+  - resets
+  - reset-names
+
+allOf:
+  - $ref: qcom,pcie-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/gpio/gpio.h>
+    pcie@fc520000 {
+      compatible = "qcom,pcie-apq8084";
+      reg = <0xfc520000 0x2000>,
+            <0xff000000 0x1000>,
+            <0xff001000 0x1000>,
+            <0xff002000 0x2000>;
+      reg-names = "parf", "dbi", "elbi", "config";
+      device_type = "pci";
+      linux,pci-domain = <0>;
+      bus-range = <0x00 0xff>;
+      num-lanes = <1>;
+      #address-cells = <3>;
+      #size-cells = <2>;
+      ranges = <0x81000000 0 0          0xff200000 0 0x00100000>,
+               <0x82000000 0 0x00300000 0xff300000 0 0x00d00000>;
+      interrupts = <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>;
+      interrupt-names = "msi";
+      #interrupt-cells = <1>;
+      interrupt-map-mask = <0 0 0 0x7>;
+      interrupt-map = <0 0 0 1 &intc 0 244 IRQ_TYPE_LEVEL_HIGH>,
+                      <0 0 0 2 &intc 0 245 IRQ_TYPE_LEVEL_HIGH>,
+                      <0 0 0 3 &intc 0 247 IRQ_TYPE_LEVEL_HIGH>,
+                      <0 0 0 4 &intc 0 248 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&gcc 324>,
+               <&gcc 325>,
+               <&gcc 327>,
+               <&gcc 323>;
+      clock-names = "iface", "master_bus", "slave_bus", "aux";
+      resets = <&gcc 81>;
+      reset-names = "core";
+      power-domains = <&gcc 1>;
+      vdda-supply = <&pma8084_l3>;
+      phys = <&pciephy0>;
+      phy-names = "pciephy";
+      perst-gpios = <&tlmm 70 GPIO_ACTIVE_LOW>;
+      pinctrl-0 = <&pcie0_pins_default>;
+      pinctrl-names = "default";
+    };