Add documentation for the rockchip rk3576 CAN-FD controller.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
---
 .../net/can/rockchip,rk3568v2-canfd.yaml      | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml b/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
index a077c0330013..e5dfce382061 100644
--- a/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
@@ -17,6 +17,7 @@ properties:
   compatible:
     oneOf:
       - const: rockchip,rk3568v2-canfd
+      - const: rockchip,rk3576-canfd
       - items:
           - const: rockchip,rk3568v3-canfd
           - const: rockchip,rk3568v2-canfd
@@ -43,6 +44,13 @@ properties:
       - const: core
       - const: apb
 
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    items:
+      - const: rx
+
 required:
   - compatible
   - reg
@@ -72,3 +80,19 @@ examples:
             reset-names = "core", "apb";
         };
     };
+
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        can@2ac00000 {
+            compatible = "rockchip,rk3576-canfd";
+            reg = <0x0 0x2ac00000 0x0 0x1000>;
+            interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cru CLK_CAN0>, <&cru PCLK_CAN0>;
+            clock-names = "baud", "pclk";
+            resets = <&cru SRST_CAN0>, <&cru SRST_P_CAN0>;
+            reset-names = "core", "apb";
+        };
+    };
-- 
2.34.1

On 23/05/2025 09:54, Elaine Zhang wrote:
>        - items:
>            - const: rockchip,rk3568v3-canfd
>            - const: rockchip,rk3568v2-canfd
> @@ -43,6 +44,13 @@ properties:
>        - const: core
>        - const: apb
>  
> +  dmas:
> +    maxItems: 1
> +
> +  dma-names:
> +    items:
> +      - const: rx

All devices support DMA? If so, explain this in commit msg. If not, this
needs constraints per variant. See example-schema and other bindings.

> +
>  required:
>    - compatible
>    - reg
> @@ -72,3 +80,19 @@ examples:
>              reset-names = "core", "apb";
>          };
>      };
> +
> +  - |
> +    soc {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        can@2ac00000 {
> +            compatible = "rockchip,rk3576-canfd";

That's the same example. Drop.



Best regards,
Krzysztof

On 23.05.2025 15:54:19, Elaine Zhang wrote:
> Add documentation for the rockchip rk3576 CAN-FD controller.
> 
> Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
> ---
>  .../net/can/rockchip,rk3568v2-canfd.yaml      | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml b/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
> index a077c0330013..e5dfce382061 100644
> --- a/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
> +++ b/Documentation/devicetree/bindings/net/can/rockchip,rk3568v2-canfd.yaml
> @@ -17,6 +17,7 @@ properties:
>    compatible:
>      oneOf:
>        - const: rockchip,rk3568v2-canfd
> +      - const: rockchip,rk3576-canfd
>        - items:
>            - const: rockchip,rk3568v3-canfd
>            - const: rockchip,rk3568v2-canfd
> @@ -43,6 +44,13 @@ properties:
>        - const: core
>        - const: apb
>  
> +  dmas:
> +    maxItems: 1
> +
> +  dma-names:
> +    items:
> +      - const: rx
> +

DMA is only supported for rockchip,rk3576-canfd.

Marc

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