dt-bindings: PCI: kirin: Convert kirin-pcie.txt to yaml

Convert the file into a JSON description at the yaml format.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/081c179ef2e0ddf11566144cd5967b15268565b4.1628061310.git.mchehab+huawei@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/hisilicon,kirin-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HiSilicon Kirin SoCs PCIe host DT description
+
+maintainers:
+  - Xiaowei Song <songxiaowei@hisilicon.com>
+  - Binghui Wang <wangbinghui@hisilicon.com>
+
+description: |
+  Kirin PCIe host controller is based on the Synopsys DesignWare PCI core.
+  It shares common functions with the PCIe DesignWare core driver and
+  inherits common properties defined in
+  Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.
+
+allOf:
+  - $ref: /schemas/pci/snps,dw-pcie.yaml#
+
+properties:
+  compatible:
+    contains:
+      enum:
+        - hisilicon,kirin960-pcie
+
+  reg:
+    description: |
+      Should contain dbi, apb, config registers location and length.
+      For HiKey960, it should also contain phy.
+    minItems: 3
+    maxItems: 4
+
+  reg-names:
+    minItems: 3
+    maxItems: 4
+
+required:
+  - compatible
+  - reg
+  - reg-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/hi3660-clock.h>
+
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      pcie@f4000000 {
+        compatible = "hisilicon,kirin960-pcie";
+        reg = <0x0 0xf4000000 0x0 0x1000>,
+              <0x0 0xff3fe000 0x0 0x1000>,
+              <0x0 0xf3f20000 0x0 0x40000>,
+              <0x0 0xf5000000 0x0 0x2000>;
+        reg-names = "dbi", "apb", "phy", "config";
+        bus-range = <0x0  0xff>;
+        #address-cells = <3>;
+        #size-cells = <2>;
+        device_type = "pci";
+        ranges = <0x02000000 0x0 0x00000000
+                  0x0 0xf6000000
+                  0x0 0x02000000>;
+        num-lanes = <1>;
+        #interrupt-cells = <1>;
+        interrupts = <0 283 4>;
+        interrupt-names = "msi";
+        interrupt-map-mask = <0xf800 0 0 7>;
+        interrupt-map = <0x0 0 0 1 &gic GIC_SPI 282 IRQ_TYPE_LEVEL_HIGH>,
+                        <0x0 0 0 2 &gic GIC_SPI 283 IRQ_TYPE_LEVEL_HIGH>,
+                        <0x0 0 0 3 &gic GIC_SPI 284 IRQ_TYPE_LEVEL_HIGH>,
+                        <0x0 0 0 4 &gic GIC_SPI 285 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
+                 <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
+                 <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
+                 <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
+                 <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
+        clock-names = "pcie_phy_ref", "pcie_aux", "pcie_apb_phy",
+                      "pcie_apb_sys", "pcie_aclk";
+      };
+    };

Documentation/devicetree/bindings/pci/kirin-pcie.txt

-HiSilicon Kirin SoCs PCIe host DT description
-
-Kirin PCIe host controller is based on the Synopsys DesignWare PCI core.
-It shares common functions with the PCIe DesignWare core driver and
-inherits common properties defined in
-Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.
-
-Additional properties are described here:
-
-Required properties
-- compatible:
-	"hisilicon,kirin960-pcie"
-- reg: Should contain rc_dbi, apb, phy, config registers location and length.
-- reg-names: Must include the following entries:
-  "dbi": controller configuration registers;
-  "apb": apb Ctrl register defined by Kirin;
-  "phy": apb PHY register defined by Kirin;
-  "config": PCIe configuration space registers.
-- reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
-
-Optional properties:
-
-Example based on kirin960:
-
-	pcie@f4000000 {
-		compatible = "hisilicon,kirin960-pcie";
-		reg = <0x0 0xf4000000 0x0 0x1000>, <0x0 0xff3fe000 0x0 0x1000>,
-		      <0x0 0xf3f20000 0x0 0x40000>, <0x0 0xF4000000 0 0x2000>;
-		reg-names = "dbi","apb","phy", "config";
-		bus-range = <0x0  0x1>;
-		#address-cells = <3>;
-		#size-cells = <2>;
-		device_type = "pci";
-		ranges = <0x02000000 0x0 0x00000000 0x0 0xf5000000 0x0 0x2000000>;
-		num-lanes = <1>;
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0xf800 0 0 7>;
-		interrupt-map = <0x0 0 0 1 &gic 0 0 0  282 4>,
-				<0x0 0 0 2 &gic 0 0 0  283 4>,
-				<0x0 0 0 3 &gic 0 0 0  284 4>,
-				<0x0 0 0 4 &gic 0 0 0  285 4>;
-		clocks = <&crg_ctrl HI3660_PCIEPHY_REF>,
-			 <&crg_ctrl HI3660_CLK_GATE_PCIEAUX>,
-			 <&crg_ctrl HI3660_PCLK_GATE_PCIE_PHY>,
-			 <&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
-			 <&crg_ctrl HI3660_ACLK_GATE_PCIE>;
-		clock-names = "pcie_phy_ref", "pcie_aux",
-			      "pcie_apb_phy", "pcie_apb_sys", "pcie_aclk";
-		reset-gpios = <&gpio11 1 0 >;
-	};

Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml

@@ -35,7 +35,7 @@ properties:
     maxItems: 5
     items:
       enum: [ dbi, dbi2, config, atu, app, elbi, mgmt, ctrl, parf, cfg, link,
-              ulreg, smu, mpu ]
+              ulreg, smu, mpu, apb, phy ]
 
   num-lanes:
     description: |

MAINTAINERS

@@ -14413,7 +14413,7 @@ M:	Xiaowei Song <songxiaowei@hisilicon.com>
 M:	Binghui Wang <wangbinghui@hisilicon.com>
 L:	linux-pci@vger.kernel.org
 S:	Maintained
-F:	Documentation/devicetree/bindings/pci/kirin-pcie.txt
+F:	Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
 F:	drivers/pci/controller/dwc/pcie-kirin.c
 
 PCIE DRIVER FOR HISILICON STB