linux-kernel - Re: [PATCH v3 1/4] dt-bindings: Add bindings for the Analog Devices ADP5585

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Date: Sun, 2 Jun 2024 17:31:04 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-gpio@...r.kernel.org, linux-pwm@...r.kernel.org
Cc: Bartosz Golaszewski <brgl@...ev.pl>, Conor Dooley <conor+dt@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Lee Jones <lee@...nel.org>,
 Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>,
 Uwe Kleine-König <ukleinek@...nel.org>
Subject: Re: [PATCH v3 1/4] dt-bindings: Add bindings for the Analog Devices
 ADP5585

On 02/06/2024 17:24, Laurent Pinchart wrote:
> The ADP5585 is a 10/11 input/output port expander with a built in keypad
> matrix decoder, programmable logic, reset generator, and PWM generator.
> These bindings model the device as an MFD, and support the GPIO expander
> and PWM functions.
> 

Please use subject prefixes matching the subsystem, e.g. dt-bindings: mfd:

A nit, subject: drop second/last, redundant "bindings for". The
"dt-bindings" prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.7-rc8/source/Documentation/devicetree/bindings/submitting-patches.rst#L18


> These bindings support the GPIO and PWM functions.
> 
> Drop the existing adi,adp5585 and adi,adp5585-02 compatible strings from
> trivial-devices.yaml. They have been added there by mistake as the
> driver that was submitted at the same time used different compatible
> strings. We can take them over safely.
> 

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        mfd@34 {

mfd is Linuxism, so this should be probably "io-expander" or something
similar.

> +            compatible = "adi,adp5585-00", "adi,adp5585";
> +            reg = <0x34>;
> +
> +            vdd-supply = <&reg_3v3>;


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof