linux-kernel - [PATCH v3 1/1] dt-bindings: PCI: layerscape-pci: Fix property 'fsl,pcie-scfg' type

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Message-Id: <20240701221612.2112668-1-Frank.Li@nxp.com>
Date: Mon,  1 Jul 2024 18:16:12 -0400
From: Frank Li <Frank.Li@....com>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-pci@...r.kernel.org (open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH v3 1/1] dt-bindings: PCI: layerscape-pci: Fix property 'fsl,pcie-scfg' type

fsl,pcie-scfg actually need an argument when there are more than one PCIe
instances. Change it to phandle-array and use items to describe each field
means.

Fix below warning.

arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dtb: pcie@...0000: fsl,pcie-scfg:0: [22, 0] is too long
        from schema $id: http://devicetree.org/schemas/pci/fsl,layerscape-pcie.yaml#

Signed-off-by: Frank Li <Frank.Li@....com>
---
Change form v2 to v3
- remove minItems because all dts use one argument.
Change from v1 to v2
- update commit message.
---
 .../devicetree/bindings/pci/fsl,layerscape-pcie.yaml       | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/fsl,layerscape-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,layerscape-pcie.yaml
index 793986c5af7ff..741b96defcc95 100644
--- a/Documentation/devicetree/bindings/pci/fsl,layerscape-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/fsl,layerscape-pcie.yaml
@@ -43,10 +43,15 @@ properties:
       - const: config
 
   fsl,pcie-scfg:
-    $ref: /schemas/types.yaml#/definitions/phandle
+    $ref: /schemas/types.yaml#/definitions/phandle-array
     description: A phandle to the SCFG device node. The second entry is the
       physical PCIe controller index starting from '0'. This is used to get
       SCFG PEXN registers.
+    items:
+      items:
+        - description: A phandle to the SCFG device node
+        - description: PCIe controller index starting from '0'
+    maxItems: 1
 
   big-endian:
     $ref: /schemas/types.yaml#/definitions/flag
-- 
2.34.1