linux-kernel - [PATCH v1 1/9] dt-bindings: PCI: Add PLDA XpressRICH PCIe host common properties

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Message-ID: <20230719102057.22329-2-minda.chen@starfivetech.com>
Date:   Wed, 19 Jul 2023 18:20:49 +0800
From:   Minda Chen <minda.chen@...rfivetech.com>
To:     Daire McNamara <daire.mcnamara@...rochip.com>,
        Conor Dooley <conor@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mason Huo <mason.huo@...rfivetech.com>,
        Leyfoon Tan <leyfoon.tan@...rfivetech.com>,
        Kevin Xie <kevin.xie@...rfivetech.com>,
        Minda Chen <minda.chen@...rfivetech.com>
Subject: [PATCH v1 1/9] dt-bindings: PCI: Add PLDA XpressRICH PCIe host common properties

Add PLDA XpressRICH PCIe host common properties dt-binding doc.
Microchip PolarFire PCIe host using PLDA IP.
Extract properties from Microchip PolarFire PCIe host.

Signed-off-by: Minda Chen <minda.chen@...rfivetech.com>
Reviewed-by: Hal Feng <hal.feng@...rfivetech.com>
---
 .../pci/plda,xpressrich-pcie-common.yaml      | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/plda,xpressrich-pcie-common.yaml

diff --git a/Documentation/devicetree/bindings/pci/plda,xpressrich-pcie-common.yaml b/Documentation/devicetree/bindings/pci/plda,xpressrich-pcie-common.yaml
new file mode 100644
index 000000000000..3627a846c5d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/plda,xpressrich-pcie-common.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/plda,xpressrich-pcie-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PLDA XpressRICH PCIe host common properties
+
+maintainers:
+  - Daire McNamara <daire.mcnamara@...rochip.com>
+  - Minda Chen <minda.chen@...rfivetech.com>
+
+description:
+  Generic PLDA XpressRICH PCIe host common properties.
+
+select: false
+
+properties:
+  reg:
+    description:
+      At least host IP register set and configuration space are
+      required for normal controller work.
+    maxItems: 2
+
+  reg-names:
+    oneOf:
+      - items:
+          - const: cfg
+          - const: apb
+      - items:
+          - const: host
+          - const: cfg
+
+  interrupts:
+    minItems: 1
+    items:
+      - description: PCIe host controller
+      - description: builtin MSI controller
+
+  interrupt-names:
+    minItems: 1
+    items:
+      - const: pcie
+      - const: msi
+
+  msi-controller:
+    description: Identifies the node as an MSI controller.
+
+  msi-parent:
+    description: MSI controller the device is capable of using.
+
+  interrupt-controller:
+    type: object
+    properties:
+      '#address-cells':
+        const: 0
+
+      '#interrupt-cells':
+        const: 1
+
+      interrupt-controller: true
+
+    required:
+      - '#address-cells'
+      - '#interrupt-cells'
+      - interrupt-controller
+
+    additionalProperties: false
+
+additionalProperties: true
+
+...
-- 
2.17.1