linux-kernel - [PATCH v4 1/2] dt-bindings: PCI: xilinx-xdma: Add schemas for Xilinx QDMA PCIe Root Port Bridge

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Message-ID: <20240811022345.1178203-2-thippesw@amd.com>
Date: Sun, 11 Aug 2024 07:53:44 +0530
From: Thippeswamy Havalige <thippesw@....com>
To: <bhelgaas@...gle.com>, <lpieralisi@...nel.org>, <kw@...ux.com>,
	<robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
CC: <michal.simek@....com>, <linux-arm-kernel@...ts.infradead.org>,
	Thippeswamy Havalige <thippesw@....com>, Conor Dooley
	<conor.dooley@...rochip.com>
Subject: [PATCH v4 1/2] dt-bindings: PCI: xilinx-xdma: Add schemas for Xilinx QDMA PCIe Root Port Bridge

Add YAML devicetree schemas for Xilinx QDMA Soft IP PCIe Root Port
Bridge version 3.0.

Signed-off-by: Thippeswamy Havalige <thippesw@....com>
Acked-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../bindings/pci/xlnx,xdma-host.yaml          | 36 +++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)
---
changes in v4
- update IP version 

changes in v3
- constrain the new entry to only the new compatible.
- Remove example.

changes in v2
- update dt node label with pcie.
---
diff --git a/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml b/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml
index 2f59b3a73dd2..f1efd919c351 100644
--- a/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml
+++ b/Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml
@@ -14,10 +14,21 @@ allOf:
 
 properties:
   compatible:
-    const: xlnx,xdma-host-3.00
+    enum:
+      - xlnx,xdma-host-3.00
+      - xlnx,qdma-host-3.00
 
   reg:
-    maxItems: 1
+    items:
+      - description: configuration region and XDMA bridge register.
+      - description: QDMA bridge register.
+    minItems: 1
+
+  reg-names:
+    items:
+      - const: cfg
+      - const: breg
+    minItems: 1
 
   ranges:
     maxItems: 2
@@ -76,6 +87,27 @@ required:
   - "#interrupt-cells"
   - interrupt-controller
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - xlnx,qdma-host-3.00
+then:
+  properties:
+    reg:
+      minItems: 2
+    reg-names:
+      minItems: 2
+  required:
+    - reg-names
+else:
+  properties:
+    reg:
+      maxItems: 1
+    reg-names:
+      maxItems: 1
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1