Commit e623c6e5 authored by Biju Das's avatar Biju Das Committed by Marc Kleine-Budde
Browse files

dt-bindings: can: renesas,rcar-canfd: Document RZ/G3E support 



Document support for the CAN-FD Interface on the RZ/G3E (R9A09G047) SoC,
which supports up to six channels.

The CAN-FD module on RZ/G3E is very similar to the one on both R-Car V4H
and RZ/G2L, but differs in some hardware parameters:
 * No external clock, but instead has ram clock.
 * Support up to 6 channels.
 * 20 interrupts.

Reviewed-by: default avatar"Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250417054320.14100-3-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 466c8ef7

Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml

+70 −6
Original line number Diff line number Diff line
@@ -42,6 +42,8 @@ properties: 
              - renesas,r9a07g054-canfd    # RZ/V2L

          - const: renesas,rzg2l-canfd     # RZ/G2L family



      - const: renesas,r9a09g047-canfd     # RZ/G3E



  reg:

    maxItems: 1
@@ -59,6 +61,19 @@ properties: 
          - description: CAN1 error interrupt

          - description: CAN1 transmit interrupt

          - description: CAN1 transmit/receive FIFO receive completion interrupt

          - description: CAN2 error interrupt

          - description: CAN2 transmit interrupt

          - description: CAN2 transmit/receive FIFO receive completion interrupt

          - description: CAN3 error interrupt

          - description: CAN3 transmit interrupt

          - description: CAN3 transmit/receive FIFO receive completion interrupt

          - description: CAN4 error interrupt

          - description: CAN4 transmit interrupt

          - description: CAN4 transmit/receive FIFO receive completion interrupt

          - description: CAN5 error interrupt

          - description: CAN5 transmit interrupt

          - description: CAN5 transmit/receive FIFO receive completion interrupt

        minItems: 8



  interrupt-names:

    oneOf:
@@ -74,15 +89,33 @@ properties: 
          - const: ch1_err

          - const: ch1_rec

          - const: ch1_trx

          - const: ch2_err

          - const: ch2_rec

          - const: ch2_trx

          - const: ch3_err

          - const: ch3_rec

          - const: ch3_trx

          - const: ch4_err

          - const: ch4_rec

          - const: ch4_trx

          - const: ch5_err

          - const: ch5_rec

          - const: ch5_trx

        minItems: 8



  clocks:

    maxItems: 3



  clock-names:

    items:

    oneOf:

      - items:

          - const: fck

          - const: canfd

          - const: can_clk

      - items:

          - const: fck

          - const: ram_clk

          - const: can_clk



  power-domains:

    maxItems: 1
@@ -145,11 +178,9 @@ allOf: 
    then:

      properties:

        interrupts:

          minItems: 8

          maxItems: 8



        interrupt-names:

          minItems: 8

          maxItems: 8



        resets:
@@ -183,6 +214,30 @@ allOf: 
        resets:

          maxItems: 1



  - if:

      properties:

        compatible:

          contains:

            const: renesas,r9a09g047-canfd

    then:

      properties:

        interrupts:

          minItems: 20



        interrupt-names:

          minItems: 20



        resets:

          minItems: 2

          maxItems: 2



        reset-names:

          minItems: 2

          maxItems: 2



      required:

        - reset-names



  - if:

      properties:

        compatible:
@@ -203,6 +258,15 @@ allOf: 
      patternProperties:

        "^channel[4-7]$": false



  - if:

      properties:

        compatible:

          contains:

            const: renesas,r9a09g047-canfd

    then:

      patternProperties:

        "^channel[6-7]$": false



unevaluatedProperties: false



examples: