Re: [PATCH v3 2/6] dt-binding: pinctrl: pinctrl-max77620: convert to DT schema

[Krzysztof Kozlowski]

On Fri, Mar 06, 2026 at 03:33:47PM +0200, Svyatoslav Ryhel wrote:
> Convert pinctrl-max77620 devicetree bindings for the MAX77620 PMIC from
> TXT to YAML format. This patch does not change any functionality; the
> bindings remain the same.
> 
> Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
> ---
>  .../pinctrl/maxim,max77620-pinctrl.yaml       |  97 +++++++++++++
>  .../bindings/pinctrl/pinctrl-max77620.txt     | 127 ------------------
>  2 files changed, 97 insertions(+), 127 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/maxim,max77620-pinctrl.yaml
>  delete mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-max77620.txt
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/maxim,max77620-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/maxim,max77620-pinctrl.yaml
> new file mode 100644
> index 000000000000..7364a8bdd7d3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/maxim,max77620-pinctrl.yaml
> @@ -0,0 +1,97 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/maxim,max77620-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Pinmux controller function for Maxim MAX77620 Power management IC
> +
> +maintainers:
> +  - Svyatoslav Ryhel <clamor95@xxxxxxxxx>
> +
> +description:
> +  Device has 8 GPIO pins which can be configured as GPIO as well as the
> +  special IO functions.
> +
> +allOf:
> +  - $ref: /schemas/pinctrl/pincfg-node.yaml
> +  - $ref: /schemas/pinctrl/pinmux-node.yaml
> +
> +patternProperties:
> +  "^(pin_gpio|gpio)[0-7_]+$":

Underscores are not allowed in general, so pattern needs fixes. Does
anything actually rely on this name? Is this ABI? I don't see old
binding and driver using the name, thus this should be just ^pin-[0-7]$
(+ is also not correct if you have max 8 gpios)


Best regards,
Krzysztof