dt-bindings: PCI: qcom,pcie-sa8775p: Move SA8775p to dedicated schema

Move SA8775p PCIe devices from qcom,pcie.yaml binding to a dedicated file
to make reviewing easier.

This creates equivalent schema file, except:
 - Missing required compatible which is actually redundant.
 - Expecting eight MSI interrupts, instead of only one, which was
   incomplete hardware description.

Link: https://lore.kernel.org/linux-pci/20240205-dt-bindings-pci-qcom-split-continued-v1-3-c333cab5eeea@linaro.org
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Krzysztof Wilczyński <[email protected]>
Acked-by: Rob Herring <[email protected]>

Author: krzk

Documentation/devicetree/bindings/pci/qcom,pcie-sa8775p.yaml

@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/qcom,pcie-sa8775p.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SA8775p PCI Express Root Complex
+
+maintainers:
+  - Bjorn Andersson <[email protected]>
+  - Manivannan Sadhasivam <[email protected]>
+
+description:
+  Qualcomm SA8775p SoC PCIe root complex controller is based on the Synopsys
+  DesignWare PCIe IP.
+
+properties:
+  compatible:
+    const: qcom,pcie-sa8775p
+
+  reg:
+    minItems: 6
+    maxItems: 6
+
+  reg-names:
+    items:
+      - const: parf # Qualcomm specific registers
+      - const: dbi # DesignWare PCIe registers
+      - const: elbi # External local bus interface registers
+      - const: atu # ATU address space
+      - const: config # PCIe configuration space
+      - const: mhi # MHI registers
+
+  clocks:
+    minItems: 5
+    maxItems: 5
+
+  clock-names:
+    items:
+      - const: aux # Auxiliary clock
+      - const: cfg # Configuration clock
+      - const: bus_master # Master AXI clock
+      - const: bus_slave # Slave AXI clock
+      - const: slave_q2a # Slave Q2A clock
+
+  interrupts:
+    minItems: 8
+    maxItems: 8
+
+  interrupt-names:
+    items:
+      - const: msi0
+      - const: msi1
+      - const: msi2
+      - const: msi3
+      - const: msi4
+      - const: msi5
+      - const: msi6
+      - const: msi7
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    items:
+      - const: pci
+
+required:
+  - interconnects
+  - interconnect-names
+
+allOf:
+  - $ref: qcom,pcie-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interconnect/qcom,sa8775p-rpmh.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1c00000 {
+            compatible = "qcom,pcie-sa8775p";
+            reg = <0x0 0x01c00000 0x0 0x3000>,
+                  <0x0 0x40000000 0x0 0xf20>,
+                  <0x0 0x40000f20 0x0 0xa8>,
+                  <0x0 0x40001000 0x0 0x4000>,
+                  <0x0 0x40100000 0x0 0x100000>,
+                  <0x0 0x01c03000 0x0 0x1000>;
+            reg-names = "parf", "dbi", "elbi", "atu", "config", "mhi";
+            ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,
+                     <0x02000000 0x0 0x40300000 0x0 0x40300000 0x0 0x1fd00000>;
+
+            bus-range = <0x00 0xff>;
+            device_type = "pci";
+            linux,pci-domain = <0>;
+            num-lanes = <2>;
+
+            #address-cells = <3>;
+            #size-cells = <2>;
+
+            assigned-clocks = <&gcc GCC_PCIE_0_AUX_CLK>;
+            assigned-clock-rates = <19200000>;
+
+            clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
+                     <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
+                     <&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
+                     <&gcc GCC_PCIE_0_SLV_AXI_CLK>,
+                     <&gcc GCC_PCIE_0_SLV_Q2A_AXI_CLK>;
+            clock-names = "aux",
+                          "cfg",
+                          "bus_master",
+                          "bus_slave",
+                          "slave_q2a";
+
+            dma-coherent;
+
+            interrupts = <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 313 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 314 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 374 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 375 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "msi0",
+                              "msi1",
+                              "msi2",
+                              "msi3",
+                              "msi4",
+                              "msi5",
+                              "msi6",
+                              "msi7";
+            #interrupt-cells = <1>;
+            interrupt-map-mask = <0 0 0 0x7>;
+            interrupt-map = <0 0 0 1 &intc GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>,
+                            <0 0 0 2 &intc GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>,
+                            <0 0 0 3 &intc GIC_SPI 438 IRQ_TYPE_LEVEL_HIGH>,
+                            <0 0 0 4 &intc GIC_SPI 439 IRQ_TYPE_LEVEL_HIGH>;
+
+            interconnects = <&pcie_anoc MASTER_PCIE_0 0 &mc_virt SLAVE_EBI1 0>,
+                            <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_PCIE_0 0>;
+            interconnect-names = "pcie-mem", "cpu-pcie";
+
+            iommu-map = <0x0 &pcie_smmu 0x0000 0x1>,
+                        <0x100 &pcie_smmu 0x0001 0x1>;
+
+            phys = <&pcie0_phy>;
+            phy-names = "pciephy";
+
+            power-domains = <&gcc PCIE_0_GDSC>;
+
+            resets = <&gcc GCC_PCIE_0_BCR>;
+            reset-names = "pci";
+
+            perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+            wake-gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
+        };
+    };

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

@@ -28,7 +28,6 @@ properties:
           - qcom,pcie-ipq8074-gen3
           - qcom,pcie-msm8996
           - qcom,pcie-qcs404
-          - qcom,pcie-sa8775p
           - qcom,pcie-sdm845
           - qcom,pcie-sdx55
       - items:
@@ -200,7 +199,6 @@ allOf:
         compatible:
           contains:
             enum:
-              - qcom,pcie-sa8775p
               - qcom,pcie-sdx55
     then:
       properties:
@@ -495,41 +493,6 @@ allOf:
           items:
             - const: pci # PCIe core reset
 
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - qcom,pcie-sa8775p
-    then:
-      properties:
-        clocks:
-          minItems: 5
-          maxItems: 5
-        clock-names:
-          items:
-            - const: aux # Auxiliary clock
-            - const: cfg # Configuration clock
-            - const: bus_master # Master AXI clock
-            - const: bus_slave # Slave AXI clock
-            - const: slave_q2a # Slave Q2A clock
-        resets:
-          maxItems: 1
-        reset-names:
-          items:
-            - const: pci # PCIe core reset
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - qcom,pcie-sa8775p
-    then:
-      required:
-        - interconnects
-        - interconnect-names
-
   - if:
       not:
         properties:
@@ -565,7 +528,6 @@ allOf:
           contains:
             enum:
               - qcom,pcie-msm8996
-              - qcom,pcie-sa8775p
               - qcom,pcie-sdm845
     then:
       oneOf: