dt-bindings: can: fsl,flexcan: add S32G2/S32G3 SoC support

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@oss.nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250113120704.522307-2-ciprianmarian.costea@oss.nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml b/Documentation/devicetree/bindings/net/can/fsl,flexcan.yaml
index 97dd1a7c5ed26bb7f1b2f78c326d91e2c299938a..73252fe56fe6c8e9fd19142208bb655dc86d47cd 100644 (file)
--- 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@pengutronix.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 +143,35 @@ 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: Bus Error detection
+            - description: Message Buffer interrupt for mailboxes 8-127
+        interrupt-names:
+          items:
+            - const: mb-0
+            - const: state
+            - const: berr
+            - const: mb-1
+      required:
+        - interrupt-names
+    else:
+      properties:
+        interrupts:
+          maxItems: 1
+        interrupt-names: false
+
 additionalProperties: false
 
 examples: