[PATCH 1/3] dt-bindings: can: renesas,rcar-canfd: Document renesas,bus-off-recovery-mode property

[Biju]

From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>

Document renesas,bus-off-recovery-mode property in the Renesas R-Car
CAN FD controller binding. This optional u32 property allows selection of
the bus-off recovery behaviour, supporting four modes:
0: ISO11898-1 compliant recovery
1: Automatic entry to Channel Halt mode at bus-off entry (default)
2: Automatic entry to Channel Halt mode at bus-off end
3: Entry to Channel Halt mode in bus-off state via program request

The default value of 1 ensures backward compatibility when the property is
omitted.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
 .../bindings/net/can/renesas,rcar-canfd.yaml          | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
index b9d9dd7a7967..4190e514a7fd 100644
--- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
@@ -154,6 +154,17 @@ properties:
       communication in Classical CAN frame format is disabled. Specify this
       property to put the controller in FD-Only mode.
 
+  renesas,bus-off-recovery-mode:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 0, 1, 2, 3 ]
+    default: 1
+    description: |
+      Bus-Off recovery mode selection. Valid values are:
+        <0> : ISO11898-1 compliant
+        <1> : Entry to halt mode automatically at bus-off entry (default)
+        <2> : Entry to halt mode automatically at bus-off end
+        <3> : Entry to halt mode (in bus-off state) by program request
+
   assigned-clocks:
     description:
       Reference to the CANFD clock.  The CANFD clock is a div6 clock and can be
-- 
2.43.0