linux-kernel - [PATCH 5/6] dt-bindings: phy: Convert Cygnus PCIe PHY to YAML

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Date:   Mon, 13 Dec 2021 11:02:20 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     devicetree@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM IPROC ARM
        ARCHITECTURE),
        linux-pci@...r.kernel.org (open list:PCI SUBSYSTEM),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM IPROC ARM
        ARCHITECTURE), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 5/6] dt-bindings: phy: Convert Cygnus PCIe PHY to YAML

Convert the Broadcom Cygnus PCIe PHY Device Tree binding t YAML to help
with validation.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 .../bindings/phy/brcm,cygnus-pcie-phy.txt     | 47 ------------
 .../bindings/phy/brcm,cygnus-pcie-phy.yaml    | 76 +++++++++++++++++++
 2 files changed, 76 insertions(+), 47 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt
deleted file mode 100644
index 10efff28b52b..000000000000
--- a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-Broadcom Cygnus PCIe PHY
-
-Required properties:
-- compatible: must be "brcm,cygnus-pcie-phy"
-- reg: base address and length of the PCIe PHY block
-- #address-cells: must be 1
-- #size-cells: must be 0
-
-Each PCIe PHY should be represented by a child node
-
-Required properties For the child node:
-- reg: the PHY ID
-0 - PCIe RC 0
-1 - PCIe RC 1
-- #phy-cells: must be 0
-
-Example:
-	pcie_phy: phy@...d0a0 {
-		compatible = "brcm,cygnus-pcie-phy";
-		reg = <0x0301d0a0 0x14>;
-
-		pcie0_phy: phy@0 {
-			reg = <0>;
-			#phy-cells = <0>;
-		};
-
-		pcie1_phy: phy@1 {
-			reg = <1>;
-			#phy-cells = <0>;
-		};
-	};
-
-	/* users of the PCIe phy */
-
-	pcie0: pcie@...12000 {
-		...
-		...
-		phys = <&pcie0_phy>;
-		phy-names = "pcie-phy";
-	};
-
-	pcie1: pcie@...13000 {
-		...
-		...
-		phys = <pcie1_phy>;
-		phy-names = "pcie-phy";
-	};
diff --git a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml
new file mode 100644
index 000000000000..045699c65779
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/brcm,cygnus-pcie-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Cygnus PCIe PHY
+
+maintainers:
+  - Ray Jui <ray.jui@...adcom.com>
+  - Scott Branden <scott.branden@...adcom.com>
+
+properties:
+  $nodename:
+    pattern: "^pcie[-|_]phy(@.*)?$"
+
+  compatible:
+    items:
+      - const: brcm,cygnus-pcie-phy
+
+  reg:
+    maxItems: 1
+    description: >
+      Base address and length of the PCIe PHY block
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "^pcie-phy@[0-9]+$":
+    type: object
+    description: >
+      PCIe PHY child nodes
+
+    properties:
+      reg:
+        maxItems: 1
+        description: >
+          The PCIe PHY port number
+
+      "#phy-cells":
+        const: 0
+
+    required:
+      - reg
+      - "#phy-cells"
+
+required:
+  - compatible
+  - reg
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    pcie_phy: pcie_phy@...d0a0 {
+      compatible = "brcm,cygnus-pcie-phy";
+      reg = <0x0301d0a0 0x14>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      pcie0_phy: pcie-phy@0 {
+          reg = <0>;
+          #phy-cells = <0>;
+      };
+
+      pcie1_phy: pcie-phy@1 {
+          reg = <1>;
+          #phy-cells = <0>;
+      };
+    };
-- 
2.25.1