linux-kernel - Re: [PATCH v4 1/2] dt-bindings: gpio: Convert STMPE GPIO to YAML schema

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Message-ID: <CAMRc=MdsBiV3AvzSPtCuR58w0N9z7o+hUrBDtXUC4a++pECb8w@mail.gmail.com>
Date:   Thu, 11 May 2023 16:58:47 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Lee Jones <lee@...nel.org>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        Stefan Agner <stefan@...er.ch>, Marek Vasut <marex@...x.de>,
        Steffen Trumtrar <s.trumtrar@...gutronix.de>,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org
Subject: Re: [PATCH v4 1/2] dt-bindings: gpio: Convert STMPE GPIO to YAML schema

On Mon, May 8, 2023 at 2:35 PM Linus Walleij <linus.walleij@...aro.org> wrote:
>
> This rewrites the STMPE GPIO bindings to a YAML schema.
>
> We add the properties that are used in the widely used
> STMPE GPIO device nodes found in the wild, most notably
> interrupt support, so interrupt-cells and
> interrupt-controller is now part of the bindings.
>
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
> ---
> ChangeLog v3->v4:
> - Realize that there were actually some old bindings so we
>   need to get rid of them as part of this patch.
> - Fix blank lines after description: keyword.
> ChangeLog v2->v3:
> - Use a compact hog node schema backed by the standard hog
>   schema.
> ChangeLog v1->v2:
> - New patch split off from the MFD patch.
> ---
>  .../devicetree/bindings/gpio/gpio-stmpe.txt        | 17 -------
>  .../devicetree/bindings/gpio/st,stmpe-gpio.yaml    | 53 ++++++++++++++++++++++
>  2 files changed, 53 insertions(+), 17 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt b/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
> deleted file mode 100644
> index b33f8f02c0d7..000000000000
> --- a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -STMPE gpio
> -----------
> -
> -Required properties:
> - - compatible: "st,stmpe-gpio"
> -
> -Optional properties:
> - - st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable
> -   due to different usage (e.g. touch, keypad)
> -
> -Node should be child node of stmpe node to which it belongs.
> -
> -Example:
> -       stmpe_gpio {
> -               compatible = "st,stmpe-gpio";
> -               st,norequest-mask = <0x20>;     //gpio 5 can't be used
> -       };
> diff --git a/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml
> new file mode 100644
> index 000000000000..22c0cae73425
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectonics Port Expander (STMPE) GPIO Block
> +
> +description:
> +  STMicroelectronics Port Expander (STMPE) is a series of slow
> +  bus controllers for various expanded peripherals such as GPIO, keypad,
> +  touchscreen, ADC, PWM or rotator. It can contain one or several different
> +  peripherals connected to SPI or I2C. These bindings pertain to the
> +  GPIO portions of these expanders.
> +
> +maintainers:
> +  - Linus Walleij <linus.walleij@...aro.org>
> +
> +properties:
> +  compatible:
> +    const: st,stmpe-gpio
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  "#interrupt-cells":
> +    const: 2
> +
> +  gpio-controller: true
> +
> +  interrupt-controller: true
> +
> +  st,norequest-mask:
> +    description:
> +      A bitmask of GPIO lines that cannot be requested because for
> +      for example not being connected to anything on the system
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +
> +patternProperties:
> +  "^.+-hog(-[0-9]+)?$":
> +    type: object
> +
> +    required:
> +      - gpio-hog
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - "#gpio-cells"
> +  - "#interrupt-cells"
> +  - gpio-controller
> +  - interrupt-controller
>
> --
> 2.34.1
>

Applied, thanks!

Bart