Commit d0342ceb authored by Evgeny Boger's avatar Evgeny Boger Committed by Marc Kleine-Budde
Browse files

dt-bindings: net: can: add support for Allwinner R40 CAN controller 

Allwinner R40 (also known as A40i, T3, V40) has a CAN controller. The
controller is the same as in earlier A10 and A20 SoCs, but needs reset
line to be deasserted before use.

This patch Introduces new compatible for R40 CAN controller with
required resets property.

Link: https://lore.kernel.org/all/20211122104616.537156-2-boger@wirenboard.com


Signed-off-by: default avatarEvgeny Boger <boger@wirenboard.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 330c6d3b

Documentation/devicetree/bindings/net/can/allwinner,sun4i-a10-can.yaml

+24 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ properties: 
          - const: allwinner,sun7i-a20-can

          - const: allwinner,sun4i-a10-can

      - const: allwinner,sun4i-a10-can

      - const: allwinner,sun8i-r40-can



  reg:

    maxItems: 1
@@ -27,6 +28,19 @@ properties: 
  clocks:

    maxItems: 1



  resets:

    maxItems: 1



if:

  properties:

    compatible:

      contains:

        const: allwinner,sun8i-r40-can



then:

  required:

    - resets



required:

  - compatible

  - reg
@@ -47,5 +61,15 @@ examples: 
        interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&ccu CLK_APB1_CAN>;

    };

  - |

    #define RST_BUS_CAN		68

    #define CLK_BUS_CAN		91

    can1: can@1c2bc00 {

        compatible = "allwinner,sun8i-r40-can";

        reg = <0x01c2bc00 0x400>;

        interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&ccu CLK_BUS_CAN>;

        resets = <&ccu RST_BUS_CAN>;

    };



...