linux-kernel - [PATCH v3 1/3] dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC support

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Message-ID: <20241129142535.1171249-2-ciprianmarian.costea@oss.nxp.com>
Date: Fri, 29 Nov 2024 16:25:33 +0200
From: Ciprian Costea <ciprianmarian.costea@....nxp.com>
To: Marc Kleine-Budde <mkl@...gutronix.de>,
	Vincent Mailhol <mailhol.vincent@...adoo.fr>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-can@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	NXP S32 Linux <s32@....com>,
	imx@...ts.linux.dev,
	Christophe Lizzi <clizzi@...hat.com>,
	Alberto Ruiz <aruizrui@...hat.com>,
	Enric Balletbo <eballetb@...hat.com>,
	Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
Subject: [PATCH v3 1/3] dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC support

From: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>

Add S32G2/S32G3 SoCs compatible strings.

A particularity for these SoCs is the presence of separate interrupts for
state change, bus errors, MBs 0-7 and MBs 8-127 respectively.

Increase maxItems of 'interrupts' to 4 for S32G based SoCs and keep the
same restriction for other SoCs.

Also, as part of this commit, move the 'allOf' after the required
properties to make the documentation easier to read.

Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@....nxp.com>
---
 .../bindings/net/can/fsl,flexcan.yaml         | 46 +++++++++++++++++--
 1 file changed, 42 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
index 97dd1a7c5ed2..10b658e85ef2 100644
--- a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
+++ b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
@@ -10,9 +10,6 @@ title:
 maintainers:
   - Marc Kleine-Budde <mkl@...gutronix.de>
 
-allOf:
-  - $ref: can-controller.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -28,6 +25,7 @@ properties:
           - fsl,vf610-flexcan
           - fsl,ls1021ar2-flexcan
           - fsl,lx2160ar1-flexcan
+          - nxp,s32g2-flexcan
       - items:
           - enum:
               - fsl,imx53-flexcan
@@ -43,12 +41,21 @@ properties:
           - enum:
               - fsl,ls1028ar1-flexcan
           - const: fsl,lx2160ar1-flexcan
+      - items:
+          - enum:
+              - nxp,s32g3-flexcan
+          - const: nxp,s32g2-flexcan
 
   reg:
     maxItems: 1
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    maxItems: 4
+
+  interrupt-names:
+    minItems: 1
+    maxItems: 4
 
   clocks:
     maxItems: 2
@@ -136,6 +143,37 @@ required:
   - reg
   - interrupts
 
+allOf:
+  - $ref: can-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nxp,s32g2-flexcan
+    then:
+      properties:
+        interrupts:
+          items:
+            - description: Message Buffer interrupt for mailboxes 0-7 and Enhanced RX FIFO
+            - description: Device state change
+            - description: Error detection
+            - description: Message Buffer interrupt for mailboxes 8-127
+        interrupt-names:
+          items:
+            - const: mb-0
+            - const: state
+            - const: berr
+            - const: mb-1
+      required:
+        - compatible
+        - reg
+        - interrupts
+        - interrupt-names
+    else:
+      properties:
+        interrupts:
+          maxItems: 1
+
 additionalProperties: false
 
 examples:
-- 
2.45.2