Re: [RESEND PATCH 1/6] dt-bindings: can: Document devicetree bindings for MCP25XXFD

From: Rob Herring
Date: Wed Jun 17 2020 - 18:17:00 EST


On Wed, Jun 10, 2020 at 01:17:06PM +0530, Manivannan Sadhasivam wrote:
> From: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
>
> Add devicetree YAML bindings for Microchip MCP25XXFD CAN controller.
>
> Signed-off-by: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
> [mani: converted to YAML binding]
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> ---
> .../bindings/net/can/microchip,mcp25xxfd.yaml | 82 +++++++++++++++++++
> 1 file changed, 82 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml
>
> diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml b/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml
> new file mode 100644
> index 000000000000..7b87ec328515
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/can/microchip,mcp25xxfd.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip MCP25XXFD stand-alone CAN controller binding
> +
> +maintainers:
> + - Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
> + - Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> +
> +properties:
> + compatible:
> + const: microchip,mcp2517fd
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + gpio-controller: true
> +
> + "#gpio-cells":
> + const: 2
> +
> + vdd-supply:
> + description: Regulator that powers the CAN controller
> +
> + xceiver-supply:
> + description: Regulator that powers the CAN transceiver
> +
> + microchip,clock-out-div:
> + description: Clock output pin divider
> + allOf:
> + - $ref: /schemas/types.yaml#/definitions/uint32

You can drop the 'allOf' now.

> + enum: [0, 1, 2, 4, 10]
> + default: 10
> +
> + microchip,clock-div2:
> + description: Divide the internal clock by 2
> + type: boolean
> +
> + microchip,gpio-open-drain:
> + description: Enable open-drain for all pins
> + type: boolean
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - interrupts
> + - gpio-controller

And '#gpio-cells'?

> + - vdd-supply
> + - xceiver-supply
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + spi {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + can0: can@1 {
> + compatible = "microchip,mcp2517fd";
> + reg = <1>;
> + clocks = <&clk24m>;
> + interrupt-parent = <&gpio4>;
> + interrupts = <13 0x8>;
> + vdd-supply = <&reg5v0>;
> + xceiver-supply = <&reg5v0>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> + };
> +
> +...
> --
> 2.17.1
>