linux-kernel - Re: [PATCH 1/1] dt-bindings: can: convert microchip,mcp251x.txt to yaml

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Message-ID: <20240813-distant-plastic-6534f660376c@spud>
Date: Tue, 13 Aug 2024 17:02:15 +0100
From: Conor Dooley <conor@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Marc Kleine-Budde <mkl@...gutronix.de>,
	Vincent Mailhol <mailhol.vincent@...adoo.fr>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	"open list:CAN NETWORK DRIVERS" <linux-can@...r.kernel.org>,
	"open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>, imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] dt-bindings: can: convert microchip,mcp251x.txt to
 yaml

On Mon, Aug 12, 2024 at 05:16:24PM -0400, Frank Li wrote:
> Convert binding doc microchip,mcp251x.txt to yaml.
> Additional change:
> - add ref to spi-peripheral-props.yaml
> 
> Fix below warning:
> arch/arm64/boot/dts/freescale/imx8dx-colibri-eval-v3.dtb: /bus@...00000/spi@...20000/can@0:
> 	failed to match any schema with compatible: ['microchip,mcp2515']
> 
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
>  .../bindings/net/can/microchip,mcp251x.txt    | 30 --------
>  .../bindings/net/can/microchip,mcp251x.yaml   | 70 +++++++++++++++++++
>  2 files changed, 70 insertions(+), 30 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt
>  create mode 100644 Documentation/devicetree/bindings/net/can/microchip,mcp251x.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt b/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt
> deleted file mode 100644
> index 381f8fb3e865a..0000000000000
> --- a/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt
> +++ /dev/null
> @@ -1,30 +0,0 @@
> -* Microchip MCP251X stand-alone CAN controller device tree bindings
> -
> -Required properties:
> - - compatible: Should be one of the following:
> -   - "microchip,mcp2510" for MCP2510.
> -   - "microchip,mcp2515" for MCP2515.
> -   - "microchip,mcp25625" for MCP25625.
> - - reg: SPI chip select.
> - - clocks: The clock feeding the CAN controller.
> - - interrupts: Should contain IRQ line for the CAN controller.
> -
> -Optional properties:
> - - vdd-supply: Regulator that powers the CAN controller.
> - - xceiver-supply: Regulator that powers the CAN transceiver.
> - - gpio-controller: Indicates this device is a GPIO controller.
> - - #gpio-cells: Should be two. The first cell is the pin number and
> -                the second cell is used to specify the gpio polarity.
> -
> -Example:
> -	can0: can@1 {
> -		compatible = "microchip,mcp2515";
> -		reg = <1>;
> -		clocks = <&clk24m>;
> -		interrupt-parent = <&gpio4>;
> -		interrupts = <13 IRQ_TYPE_LEVEL_LOW>;
> -		vdd-supply = <&reg5v0>;
> -		xceiver-supply = <&reg5v0>;
> -		gpio-controller;
> -		#gpio-cells = <2>;
> -	};
> diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp251x.yaml b/Documentation/devicetree/bindings/net/can/microchip,mcp251x.yaml
> new file mode 100644
> index 0000000000000..789545b6c669a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/can/microchip,mcp251x.yaml

Filename matching a compatible please.

> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/can/microchip,mcp251x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip MCP251X stand-alone CAN controller
> +
> +maintainers:
> +  - Frank Li <Frank.Li@....com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - microchip,mcp2510
> +      - microchip,mcp2515
> +      - microchip,mcp25625
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: Regulator that powers the CAN controller.
> +
> +  xceiver-supply:
> +    description: Regulator that powers the CAN transceiver.
> +
> +  gpio-controller: true
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - interrupts
> +
> +allOf:
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        can0: can@1 {

The label here is not used and should be dropped.

Otherwise, looks good to me.

Thanks,
Conor.

> +             compatible = "microchip,mcp2515";
> +             reg = <1>;
> +             clocks = <&clk24m>;
> +             interrupt-parent = <&gpio4>;
> +             interrupts = <13 IRQ_TYPE_LEVEL_LOW>;
> +             vdd-supply = <&reg5v0>;
> +             xceiver-supply = <&reg5v0>;
> +             gpio-controller;
> +             #gpio-cells = <2>;
> +        };
> +    };
> +
> -- 
> 2.34.1
> 

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