Merge branch 'pci/dt-bindings'

- Add Qualcomm QCS615 to SM8150 DT binding (Ziyue Zhang)

- Add Qualcomm QCS8300 to SA8775p DT binding (Ziyue Zhang)

- Add '6' (64 GT/s, aka Gen6) as a legal value for the DT endpoint
  'max-link-speed' property (Hans Zhang)

- Drop TBU and ref clocks from Qualcomm SM8150 and SC8180x DT bindings
  (Konrad Dybcio)

- Convert amazon,al-alpine-v[23]-pcie, apm,xgene-pcie, axis,artpec6-pcie,
  marvell,armada-3700-pcie, st,spear1340-pcie to DT schema format (Rob
  Herring)

- Document 'link_down' reset in Qualcomm SA8775P DT binding (Ziyue Zhang)

* pci/dt-bindings:
  dt-bindings: PCI: qcom,pcie-sa8775p: Document 'link_down' reset
  dt-bindings: PCI: Remove 83xx-512x-pci.txt
  dt-bindings: PCI: Convert amazon,al-alpine-v[23]-pcie to DT schema
  dt-bindings: PCI: Convert marvell,armada-3700-pcie to DT schema
  dt-bindings: PCI: Convert apm,xgene-pcie to DT schema
  dt-bindings: PCI: Convert axis,artpec6-pcie to DT schema
  dt-bindings: PCI: Convert st,spear1340-pcie to DT schema
  dt-bindings: PCI: qcom,pcie-sm8150: Drop unrelated clocks from PCIe hosts
  dt-bindings: PCI: qcom,pcie-sc8180x: Drop unrelated clocks from PCIe hosts
  dt-bindings: PCI: pci-ep: Extend max-link-speed to PCIe Gen5/Gen6
  dt-bindings: PCI: qcom,pcie-sa8775p: Document QCS8300
  dt-bindings: PCI: qcom,pcie-sm8150: Document QCS615

Author: bjorn-helgaas

Documentation/devicetree/bindings/pci/83xx-512x-pci.txt

@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/amazon,al-alpine-v3-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amazon Annapurna Labs Alpine v3 PCIe Host Bridge
+
+maintainers:
+  - Jonathan Chocron <jonnyc@amazon.com>
+
+description:
+  Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys
+  DesignWare PCI controller.
+
+allOf:
+  - $ref: snps,dw-pcie.yaml#
+
+properties:
+  compatible:
+    enum:
+      - amazon,al-alpine-v2-pcie
+      - amazon,al-alpine-v3-pcie
+
+  reg:
+    items:
+      - description: PCIe ECAM space
+      - description: AL proprietary registers
+      - description: Designware PCIe registers
+
+  reg-names:
+    items:
+      - const: config
+      - const: controller
+      - const: dbi
+
+  interrupts:
+    maxItems: 1
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    bus {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@fb600000 {
+            compatible = "amazon,al-alpine-v3-pcie";
+            reg = <0x0 0xfb600000 0x0 0x00100000
+                  0x0 0xfd800000 0x0 0x00010000
+                  0x0 0xfd810000 0x0 0x00001000>;
+            reg-names = "config", "controller", "dbi";
+            bus-range = <0 255>;
+            device_type = "pci";
+            #address-cells = <3>;
+            #size-cells = <2>;
+            #interrupt-cells = <1>;
+            interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-map-mask = <0x00 0 0 7>;
+            interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */
+            ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;
+        };
+    };

Documentation/devicetree/bindings/pci/aardvark-pci.txt

@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/apm,xgene-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AppliedMicro X-Gene PCIe interface
+
+maintainers:
+  - Toan Le <toan@os.amperecomputing.com>
+
+allOf:
+  - $ref: /schemas/pci/pci-host-bridge.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: apm,xgene-storm-pcie
+          - const: apm,xgene-pcie
+      - items:
+          - const: apm,xgene-pcie
+
+  reg:
+    items:
+      - description: Controller configuration registers
+      - description: PCI configuration space registers
+
+  reg-names:
+    items:
+      - const: csr
+      - const: cfg
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: pcie
+
+  dma-coherent: true
+
+  msi-parent:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - '#interrupt-cells'
+  - interrupt-map-mask
+  - interrupt-map
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    bus {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1f2b0000 {
+            compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
+            device_type = "pci";
+            #interrupt-cells = <1>;
+            #size-cells = <2>;
+            #address-cells = <3>;
+            reg = <0x00 0x1f2b0000 0x0 0x00010000>, /* Controller registers */
+                  <0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */
+            reg-names = "csr", "cfg";
+            ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000>, /* io */
+                    <0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */
+            dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000>,
+                        <0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
+            interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+            interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x1>,
+                            <0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x1>,
+                            <0x0 0x0 0x0 0x3 &gic 0x0 0xc4 0x1>,
+                            <0x0 0x0 0x0 0x4 &gic 0x0 0xc5 0x1>;
+            dma-coherent;
+            clocks = <&pcie0clk 0>;
+        };
+    };