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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Fri, 26 Jan 2024 09:56:44 +0100
Subject: [PATCH v3 3/6] dt-bindings: PCI: qcom,pcie-sm8250: move SM8250 to
 dedicated schema
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Message-Id: <20240126-dt-bindings-pci-qcom-split-v3-3-f23cda4d74c0@linaro.org>
References: <20240126-dt-bindings-pci-qcom-split-v3-0-f23cda4d74c0@linaro.org>
In-Reply-To: <20240126-dt-bindings-pci-qcom-split-v3-0-f23cda4d74c0@linaro.org>
To: Bjorn Andersson <andersson@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>, 
 Lorenzo Pieralisi <lpieralisi@kernel.org>, 
 =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kw@linux.com>, 
 Bjorn Helgaas <bhelgaas@google.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Rob Herring <robh+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, 
 Manivannan Sadhasivam <mani@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, 
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, 
 Rob Herring <robh@kernel.org>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Move SM8250 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.

Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../devicetree/bindings/pci/qcom,pcie-sm8250.yaml  | 173 +++++++++++++++++++++
 .../devicetree/bindings/pci/qcom,pcie.yaml         |  48 ------
 2 files changed, 173 insertions(+), 48 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-sm8250.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8250.yaml
new file mode 100644
index 000000000000..4d060bce6f9d
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8250.yaml
@@ -0,0 +1,173 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/qcom,pcie-sm8250.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM8250 PCI Express Root Complex
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+description:
+  Qualcomm SM8250 SoC PCIe root complex controller is based on the Synopsys
+  DesignWare PCIe IP.
+
+properties:
+  compatible:
+    const: qcom,pcie-sm8250
+
+  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:
+    # Unfortunately the "optional" ref clock is used in the middle of the list
+    oneOf:
+      - items:
+          - const: pipe # PIPE 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: ref # REFERENCE clock
+          - const: tbu # PCIe TBU clock
+          - const: ddrss_sf_tbu # PCIe SF TBU clock
+      - items:
+          - const: pipe # PIPE 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
+
+  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
+
+allOf:
+  - $ref: qcom,pcie-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sm8250.h>
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interconnect/qcom,sm8250.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        pcie@1c00000 {
+            compatible = "qcom,pcie-sm8250";
+            reg = <0 0x01c00000 0 0x3000>,
+                  <0 0x60000000 0 0xf1d>,
+                  <0 0x60000f20 0 0xa8>,
+                  <0 0x60001000 0 0x1000>,
+                  <0 0x60100000 0 0x100000>,
+                  <0 0x01c03000 0 0x1000>;
+            reg-names = "parf", "dbi", "elbi", "atu", "config", "mhi";
+            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_PIPE_CLK>,
+                     <&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>;
+            clock-names = "pipe",
+                          "aux",
+                          "cfg",
+                          "bus_master",
+                          "bus_slave",
+                          "slave_q2a",
+                          "tbu",
+                          "ddrss_sf_tbu";
+
+            dma-coherent;
+
+            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 79 GPIO_ACTIVE_LOW>;
+            wake-gpios = <&tlmm 81 GPIO_ACTIVE_HIGH>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 791ddab8ddc7..14341d210063 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -36,7 +36,6 @@ properties:
           - qcom,pcie-sdm845
           - qcom,pcie-sdx55
           - qcom,pcie-sm8150
-          - qcom,pcie-sm8250
           - qcom,pcie-sm8350
       - items:
           - const: qcom,pcie-msm8998
@@ -215,7 +214,6 @@ allOf:
               - qcom,pcie-sc8180x
               - qcom,pcie-sc8280xp
               - qcom,pcie-sdx55
-              - qcom,pcie-sm8250
               - qcom,pcie-sm8350
     then:
       properties:
@@ -570,51 +568,6 @@ allOf:
           items:
             - const: pci # PCIe core reset
 
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - qcom,pcie-sm8250
-    then:
-      oneOf:
-          # Unfortunately the "optional" ref clock is used in the middle of the list
-        - properties:
-            clocks:
-              minItems: 9
-              maxItems: 9
-            clock-names:
-              items:
-                - const: pipe # PIPE 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: ref # REFERENCE clock
-                - const: tbu # PCIe TBU clock
-                - const: ddrss_sf_tbu # PCIe SF TBU clock
-        - properties:
-            clocks:
-              minItems: 8
-              maxItems: 8
-            clock-names:
-              items:
-                - const: pipe # PIPE 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
-      properties:
-        resets:
-          maxItems: 1
-        reset-names:
-          items:
-            - const: pci # PCIe core reset
-
   - if:
       properties:
         compatible:
@@ -777,7 +730,6 @@ allOf:
               - qcom,pcie-sc8180x
               - qcom,pcie-sdm845
               - qcom,pcie-sm8150
-              - qcom,pcie-sm8250
               - qcom,pcie-sm8350
     then:
       oneOf:

-- 
2.34.1