dt-bindings: PCI: qcom,pcie-sc7280: Move SC7280 to dedicated schema

Move SC7280 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 exactly one MSI interrupt, instead of eight, because I
   could not find interrupt details for this model and current DTS uses
   one interrupt.

Link: https://lore.kernel.org/linux-pci/20240205-dt-bindings-pci-qcom-split-continued-v1-2-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-sc7280.yaml

@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/qcom,pcie-sc7280.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC7280 PCI Express Root Complex
+
+maintainers:
+  - Bjorn Andersson <[email protected]>
+  - Manivannan Sadhasivam <[email protected]>
+
+description:
+  Qualcomm SC7280 SoC PCIe root complex controller is based on the Synopsys
+  DesignWare PCIe IP.
+
+properties:
+  compatible:
+    const: qcom,pcie-sc7280
+
+  reg:
+    minItems: 5
+    maxItems: 6
+
+  reg-names:
+    minItems: 5
+    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: 13
+    maxItems: 13
+
+  clock-names:
+    items:
+      - const: pipe # PIPE clock
+      - const: pipe_mux # PIPE MUX
+      - const: phy_pipe # PIPE output clock
+      - const: ref # REFERENCE clock
+      - 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
+      - const: tbu # PCIe TBU clock
+      - const: ddrss_sf_tbu # PCIe SF TBU clock
+      - const: aggre0 # Aggre NoC PCIe CENTER SF AXI clock
+      - const: aggre1 # Aggre NoC PCIe1 AXI clock
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    items:
+      - const: msi
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    items:
+      - const: pci
+
+  vddpe-3v3-supply:
+    description: PCIe endpoint power supply
+
+allOf:
+  - $ref: qcom,pcie-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1c08000 {
+            compatible = "qcom,pcie-sc7280";
+            reg = <0 0x01c08000 0 0x3000>,
+                  <0 0x40000000 0 0xf1d>,
+                  <0 0x40000f20 0 0xa8>,
+                  <0 0x40001000 0 0x1000>,
+                  <0 0x40100000 0 0x100000>;
+            reg-names = "parf", "dbi", "elbi", "atu", "config";
+            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 = <1>;
+            num-lanes = <2>;
+
+            #address-cells = <3>;
+            #size-cells = <2>;
+
+            assigned-clocks = <&gcc GCC_PCIE_1_AUX_CLK>;
+            assigned-clock-rates = <19200000>;
+
+            clocks = <&gcc GCC_PCIE_1_PIPE_CLK>,
+                     <&gcc GCC_PCIE_1_PIPE_CLK_SRC>,
+                     <&pcie1_phy>,
+                     <&rpmhcc RPMH_CXO_CLK>,
+                     <&gcc GCC_PCIE_1_AUX_CLK>,
+                     <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
+                     <&gcc GCC_PCIE_1_MSTR_AXI_CLK>,
+                     <&gcc GCC_PCIE_1_SLV_AXI_CLK>,
+                     <&gcc GCC_PCIE_1_SLV_Q2A_AXI_CLK>,
+                     <&gcc GCC_AGGRE_NOC_PCIE_TBU_CLK>,
+                     <&gcc GCC_DDRSS_PCIE_SF_CLK>,
+                     <&gcc GCC_AGGRE_NOC_PCIE_CENTER_SF_AXI_CLK>,
+                     <&gcc GCC_AGGRE_NOC_PCIE_1_AXI_CLK>;
+
+            clock-names = "pipe",
+                          "pipe_mux",
+                          "phy_pipe",
+                          "ref",
+                          "aux",
+                          "cfg",
+                          "bus_master",
+                          "bus_slave",
+                          "slave_q2a",
+                          "tbu",
+                          "ddrss_sf_tbu",
+                          "aggre0",
+                          "aggre1";
+
+            dma-coherent;
+
+            interrupts = <GIC_SPI 307 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 0 0 434 IRQ_TYPE_LEVEL_HIGH>,
+                            <0 0 0 2 &intc 0 0 0 435 IRQ_TYPE_LEVEL_HIGH>,
+                            <0 0 0 3 &intc 0 0 0 438 IRQ_TYPE_LEVEL_HIGH>,
+                            <0 0 0 4 &intc 0 0 0 439 IRQ_TYPE_LEVEL_HIGH>;
+
+            iommu-map = <0x0 &apps_smmu 0x1c80 0x1>,
+                        <0x100 &apps_smmu 0x1c81 0x1>;
+
+            phys = <&pcie1_phy>;
+            phy-names = "pciephy";
+
+            pinctrl-names = "default";
+            pinctrl-0 = <&pcie1_clkreq_n>;
+
+            power-domains = <&gcc GCC_PCIE_1_GDSC>;
+
+            resets = <&gcc GCC_PCIE_1_BCR>;
+            reset-names = "pci";
+
+            perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+            vddpe-3v3-supply = <&pp3300_ssd>;
+        };
+    };

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

@@ -29,7 +29,6 @@ properties:
           - qcom,pcie-msm8996
           - qcom,pcie-qcs404
           - qcom,pcie-sa8775p
-          - qcom,pcie-sc7280
           - qcom,pcie-sdm845
           - qcom,pcie-sdx55
       - items:
@@ -93,9 +92,6 @@ properties:
   vdda_refclk-supply:
     description: A phandle to the core analog power supply for IC which generates reference clock
 
-  vddpe-3v3-supply:
-    description: A phandle to the PCIe endpoint power supply
-
   phys:
     maxItems: 1
 
@@ -205,7 +201,6 @@ allOf:
           contains:
             enum:
               - qcom,pcie-sa8775p
-              - qcom,pcie-sc7280
               - qcom,pcie-sdx55
     then:
       properties:
@@ -431,38 +426,6 @@ allOf:
             - const: pwr # PWR reset
             - const: ahb # AHB reset
 
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - qcom,pcie-sc7280
-    then:
-      properties:
-        clocks:
-          minItems: 13
-          maxItems: 13
-        clock-names:
-          items:
-            - const: pipe # PIPE clock
-            - const: pipe_mux # PIPE MUX
-            - const: phy_pipe # PIPE output clock
-            - const: ref # REFERENCE clock
-            - 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
-            - const: tbu # PCIe TBU clock
-            - const: ddrss_sf_tbu # PCIe SF TBU clock
-            - const: aggre0 # Aggre NoC PCIe CENTER SF AXI clock
-            - const: aggre1 # Aggre NoC PCIe1 AXI clock
-        resets:
-          maxItems: 1
-        reset-names:
-          items:
-            - const: pci # PCIe core reset
-
   - if:
       properties:
         compatible:
@@ -603,7 +566,6 @@ allOf:
             enum:
               - qcom,pcie-msm8996
               - qcom,pcie-sa8775p
-              - qcom,pcie-sc7280
               - qcom,pcie-sdm845
     then:
       oneOf: