linux-kernel - Re: [PATCH v1 8/8] dt-bindings: pinctrl: convert ocelot-pinctrl to YAML format

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Message-ID: <869d4fda-e943-1817-17cd-df7b323a1fef@kernel.org>
Date:   Sun, 13 Mar 2022 16:55:08 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Michael Walle <michael@...le.cc>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Paul Burton <paulburton@...nel.org>,
        Quentin Schulz <quentin.schulz@...tlin.com>,
        Antoine Tenart <atenart@...nel.org>,
        Kavyasree Kotagiri <kavyasree.kotagiri@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        UNGLinuxDriver@...rochip.com, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org
Subject: Re: [PATCH v1 8/8] dt-bindings: pinctrl: convert ocelot-pinctrl to
 YAML format

On 13/03/2022 16:29, Michael Walle wrote:
> Convert the ocelot-pinctrl device tree binding to the new YAML format.
> 
> Signed-off-by: Michael Walle <michael@...le.cc>
> ---
>  .../bindings/pinctrl/mscc,ocelot-pinctrl.txt  | 42 ---------
>  .../bindings/pinctrl/mscc,ocelot-pinctrl.yaml | 94 +++++++++++++++++++
>  2 files changed, 94 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt
> deleted file mode 100644
> index 5d84fd299ccf..000000000000
> --- a/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.txt
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -Microsemi Ocelot pin controller Device Tree Bindings
> -----------------------------------------------------
> -
> -Required properties:
> - - compatible		: Should be "mscc,ocelot-pinctrl",
> -			  "mscc,jaguar2-pinctrl", "microchip,sparx5-pinctrl",
> -			  "mscc,luton-pinctrl", "mscc,serval-pinctrl",
> -			  "microchip,lan966x-pinctrl" or "mscc,servalt-pinctrl"
> - - reg			: Address and length of the register set for the device
> - - gpio-controller	: Indicates this device is a GPIO controller
> - - #gpio-cells		: Must be 2.
> -			  The first cell is the pin number and the
> -			  second cell specifies GPIO flags, as defined in
> -			  <dt-bindings/gpio/gpio.h>.
> - - gpio-ranges		: Range of pins managed by the GPIO controller.
> -
> -
> -The ocelot-pinctrl driver uses the generic pin multiplexing and generic pin
> -configuration documented in pinctrl-bindings.txt.
> -
> -The following generic properties are supported:
> - - function
> - - pins
> -
> -Example:
> -	gpio: pinctrl@...70034 {
> -		compatible = "mscc,ocelot-pinctrl";
> -		reg = <0x71070034 0x28>;
> -		gpio-controller;
> -		#gpio-cells = <2>;
> -		gpio-ranges = <&gpio 0 0 22>;
> -
> -		uart_pins: uart-pins {
> -				pins = "GPIO_6", "GPIO_7";
> -				function = "uart";
> -		};
> -
> -		uart2_pins: uart2-pins {
> -				pins = "GPIO_12", "GPIO_13";
> -				function = "uart2";
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.yaml
> new file mode 100644
> index 000000000000..40148aef4ecf
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.yaml
> @@ -0,0 +1,94 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/mscc,ocelot-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microsemi Ocelot pin controller Device Tree Bindings

s/Device Tree Bindings//

> +
> +maintainers:
> +  - Alexandre Belloni <alexandre.belloni@...tlin.com>
> +  - Lars Povlsen <lars.povlsen@...rochip.com>
> +
> +allOf:
> +  - $ref: "pinctrl.yaml#"
> +
> +properties:
> +  compatible:
> +    enum:
> +      - microchip,lan966x-pinctrl
> +      - microchip,sparx5-pinctrl
> +      - mscc,jaguar2-pinctrl
> +      - mscc,luton-pinctrl
> +      - mscc,ocelot-pinctrl
> +      - mscc,serval-pinctrl
> +      - mscc,servalt-pinctrl
> +
> +  reg: true

maxItems

> +
> +  gpio-controller: true
> +
> +  '#gpio-cells':
> +    const: 2
> +
> +  gpio-ranges: true
> +
> +  interrupts:
> +    maxItems: 1
> +    description: The GPIO parent interrupt.

Skip description, it's obvious.

> +
> +  interrupt-controller: true
> +
> +  "#interrupt-cells":
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - gpio-controller
> +  - '#gpio-cells'
> +  - gpio-ranges

Put "required:" after "patternProperties:".

> +patternProperties:
> +  '-pins$':
> +    type: object
> +    allOf:
> +      - $ref: "pinmux-node.yaml"
> +      - $ref: "pincfg-node.yaml"


Best regards,
Krzysztof