dt-bindings: PCI: qcom,pcie-sm8350: Move SM8350 to dedicated schema

Move SM8350 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/20240126-dt-bindings-pci-qcom-split-v3-5-f23cda4d74c0@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

2 files changed, 184 insertions, 32 deletions

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-sm8350.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8350.yaml
new file mode 100644
index 000000000000..9eb6e457b07f
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8350.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/qcom,pcie-sm8350.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8350 PCI Express Root Complex
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+description:
+  Qualcomm SM8350 SoC PCIe root complex controller is based on the Synopsys
+  DesignWare PCIe IP.
+
+properties:
+  compatible:
+    const: qcom,pcie-sm8350
+
+  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: 8
+    maxItems: 9
+
+  clock-names:
+    minItems: 8
+    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
+      - const: tbu # PCIe TBU clock
+      - const: ddrss_sf_tbu # PCIe SF TBU clock
+      - const: aggre1 # Aggre NoC PCIe1 AXI clock
+      - const: aggre0 # Aggre NoC PCIe0 AXI 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
+
+oneOf:
+  - properties:
+      interrupts:
+        maxItems: 1
+      interrupt-names:
+        items:
+          - const: msi
+
+  - properties:
+      interrupts:
+        minItems: 8
+      interrupt-names:
+        items:
+          - const: msi0
+          - const: msi1
+          - const: msi2
+          - const: msi3
+          - const: msi4
+          - const: msi5
+          - const: msi6
+          - const: msi7
+
+allOf:
+  - $ref: qcom,pcie-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sm8350.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interconnect/qcom,sm8350.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1c00000 {
+            compatible = "qcom,pcie-sm8350";
+            reg = <0 0x01c00000 0 0x3000>,
+                  <0 0x60000000 0 0xf1d>,
+                  <0 0x60000f20 0 0xa8>,
+                  <0 0x60001000 0 0x1000>,
+                  <0 0x60100000 0 0x100000>;
+            reg-names = "parf", "dbi", "elbi", "atu", "config";
+            ranges = <0x01000000 0x0 0x00000000 0x0 0x60200000 0x0 0x100000>,
+                     <0x02000000 0x0 0x60300000 0x0 0x60300000 0x0 0x3d00000>;
+
+            bus-range = <0x00 0xff>;
+            device_type = "pci";
+            linux,pci-domain = <0>;
+            num-lanes = <1>;
+
+            #address-cells = <3>;
+            #size-cells = <2>;
+
+            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>,
+                     <&gcc GCC_AGGRE_NOC_PCIE_TBU_CLK>,
+                     <&gcc GCC_DDRSS_PCIE_SF_TBU_CLK>,
+                     <&gcc GCC_AGGRE_NOC_PCIE_1_AXI_CLK>,
+                     <&gcc GCC_AGGRE_NOC_PCIE_0_AXI_CLK>;
+            clock-names = "aux",
+                          "cfg",
+                          "bus_master",
+                          "bus_slave",
+                          "slave_q2a",
+                          "tbu",
+                          "ddrss_sf_tbu",
+                          "aggre1",
+                          "aggre0";
+
+            interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 148 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 0 149 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
+                            <0 0 0 2 &intc 0 150 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
+                            <0 0 0 3 &intc 0 151 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
+                            <0 0 0 4 &intc 0 152 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
+
+            iommu-map = <0x0 &apps_smmu 0x1c00 0x1>,
+                        <0x100 &apps_smmu 0x1c01 0x1>;
+
+            phys = <&pcie0_phy>;
+            phy-names = "pciephy";
+
+            pinctrl-0 = <&pcie0_default_state>;
+            pinctrl-names = "default";
+
+            power-domains = <&gcc PCIE_0_GDSC>;
+
+            resets = <&gcc GCC_PCIE_0_BCR>;
+            reset-names = "pci";
+
+            perst-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
+            wake-gpios = <&tlmm 96 GPIO_ACTIVE_HIGH>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 47888b5b1a13..6e03a1bce5d4 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -35,7 +35,6 @@ properties:
           - qcom,pcie-sc8280xp
           - qcom,pcie-sdm845
           - qcom,pcie-sdx55
-          - qcom,pcie-sm8350
       - items:
           - const: qcom,pcie-msm8998
           - const: qcom,pcie-msm8996
@@ -213,7 +212,6 @@ allOf:
               - qcom,pcie-sc8180x
               - qcom,pcie-sc8280xp
               - qcom,pcie-sdx55
-              - qcom,pcie-sm8350
     then:
       properties:
         reg:
@@ -545,35 +543,6 @@ allOf:
         compatible:
           contains:
             enum:
-              - qcom,pcie-sm8350
-    then:
-      properties:
-        clocks:
-          minItems: 8
-          maxItems: 9
-        clock-names:
-          minItems: 8
-          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
-            - const: tbu # PCIe TBU clock
-            - const: ddrss_sf_tbu # PCIe SF TBU clock
-            - const: aggre1 # Aggre NoC PCIe1 AXI clock
-            - const: aggre0 # Aggre NoC PCIe0 AXI clock
-        resets:
-          maxItems: 1
-        reset-names:
-          items:
-            - const: pci # PCIe core reset
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
               - qcom,pcie-sa8540p
               - qcom,pcie-sc8280xp
     then:
@@ -701,7 +670,6 @@ allOf:
               - qcom,pcie-sc7280
               - qcom,pcie-sc8180x
               - qcom,pcie-sdm845
-              - qcom,pcie-sm8350
     then:
       oneOf:
         - properties: