[PATCH 2/2] dt-bindings: can: xilinx_can: Document phys property

The Xilinx CAN and CANFD controllers can be connected to an external
CAN transceiver on the board. That connection is described with the
standard "phys" property on the controller node, pointing to a CAN
transceiver PHY node which models the transceiver and its control
lines (for example the standby/enable signals).

Describe the optional "phys" property (a single transceiver PHY) so
the on-board CAN transceiver can be described in the device tree.

Signed-off-by: Harini T <[email protected]>
---
 Documentation/devicetree/bindings/net/can/xilinx,can.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/xilinx,can.yaml b/Documentation/devicetree/bindings/net/can/xilinx,can.yaml
index e705c719f7b5..18015e60fd6d 100644
--- a/Documentation/devicetree/bindings/net/can/xilinx,can.yaml
+++ b/Documentation/devicetree/bindings/net/can/xilinx,can.yaml
@@ -53,6 +53,9 @@ properties:
     $ref: /schemas/types.yaml#/definitions/flag
     description: CAN TX_OL, TX_TL and RX FIFOs have ECC support(AXI CAN)
 
+  phys:
+    maxItems: 1
+
 required:
   - compatible
   - reg
-- 
2.34.1