linux-kernel - [PATCH v13 1/5] dt-bindings: PCI: ti,j721e-pci-*: add checks for num-lanes

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Message-ID: <20231128054402.2155183-2-s-vadapalli@ti.com>
Date:   Tue, 28 Nov 2023 11:13:58 +0530
From:   Siddharth Vadapalli <s-vadapalli@...com>
To:     <lpieralisi@...nel.org>, <robh@...nel.org>, <kw@...ux.com>,
        <bhelgaas@...gle.com>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <vigneshr@...com>, <tjoseph@...ence.com>
CC:     <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <r-gunasekaran@...com>,
        <danishanwar@...com>, <srk@...com>, <nm@...com>,
        <s-vadapalli@...com>
Subject: [PATCH v13 1/5] dt-bindings: PCI: ti,j721e-pci-*: add checks for num-lanes

From: Matt Ranostay <mranostay@...com>

Add num-lanes schema checks based on compatible string on available lanes
for that platform.

Signed-off-by: Matt Ranostay <mranostay@...com>
Signed-off-by: Achal Verma <a-verma1@...com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
---
 .../bindings/pci/ti,j721e-pci-ep.yaml         | 27 ++++++++++++++++---
 .../bindings/pci/ti,j721e-pci-host.yaml       | 27 ++++++++++++++++---
 2 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
index 62292185fe2e..162e5c2906e1 100644
--- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
@@ -10,9 +10,6 @@ title: TI J721E PCI EP (PCIe Wrapper)
 maintainers:
   - Kishon Vijay Abraham I <kishon@...com>
 
-allOf:
-  - $ref: cdns-pcie-ep.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -65,6 +62,30 @@ properties:
     items:
       - const: link_state
 
+allOf:
+  - $ref: cdns-pcie-ep.yaml#
+  - if:
+      properties:
+        compatible:
+          enum:
+            - ti,am64-pcie-ep
+    then:
+      properties:
+        num-lanes:
+          const: 1
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - ti,j7200-pcie-ep
+            - ti,j721e-pcie-ep
+    then:
+      properties:
+        num-lanes:
+          minimum: 1
+          maximum: 2
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
index a2c5eaea57f5..854dc9e08dcf 100644
--- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
@@ -10,9 +10,6 @@ title: TI J721E PCI Host (PCIe Wrapper)
 maintainers:
   - Kishon Vijay Abraham I <kishon@...com>
 
-allOf:
-  - $ref: cdns-pcie-host.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -94,6 +91,30 @@ properties:
       interrupts:
         maxItems: 1
 
+allOf:
+  - $ref: cdns-pcie-host.yaml#
+  - if:
+      properties:
+        compatible:
+          enum:
+            - ti,am64-pcie-host
+    then:
+      properties:
+        num-lanes:
+          const: 1
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - ti,j7200-pcie-host
+            - ti,j721e-pcie-host
+    then:
+      properties:
+        num-lanes:
+          minimum: 1
+          maximum: 2
+
 required:
   - compatible
   - reg
-- 
2.34.1