linux-kernel - [PATCH v5 1/4] dt-bindings: PCI: Add PCI Endpoint Controller Schema

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Date:   Thu, 5 Mar 2020 16:00:14 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Tom Joseph <tjoseph@...ence.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kishon@...com>
Subject: [PATCH v5 1/4] dt-bindings: PCI: Add PCI Endpoint Controller Schema

Define a common schema for PCI Endpoint Controllers.

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../devicetree/bindings/pci/pci-ep.yaml       | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/pci-ep.yaml

diff --git a/Documentation/devicetree/bindings/pci/pci-ep.yaml b/Documentation/devicetree/bindings/pci/pci-ep.yaml
new file mode 100644
index 000000000000..b3df100705b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/pci-ep.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/pci-ep.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PCI Endpoint Controller Schema
+
+description: |
+  Common properties for PCI Endpoint Controller Nodes.
+
+maintainers:
+  - Kishon Vijay Abraham I <kishon@...com>
+
+properties:
+  $nodename:
+    pattern: "^pcie-ep@"
+
+  max-functions:
+    description: Maximum number of functions that can be configured
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint8
+    minimum: 1
+    default: 1
+    maximum: 255
+
+  max-link-speed:
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 1, 2, 3, 4 ]
+
+  num-lanes:
+    description: maximum number of lanes
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 1
+    default: 1
+    maximum: 16
+
+required:
+  - compatible
-- 
2.17.1