linux-kernel - Re: [PATCH v2 02/12] dt-bindings: leds: document Samsung S2M series PMIC RGB LED device

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Message-ID: <20260206133837.GA157817-robh@kernel.org>
Date: Fri, 6 Feb 2026 07:38:37 -0600
From: Rob Herring <robh@...nel.org>
To: Kaustabh Chakraborty <kauschluss@...root.org>
Cc: Lee Jones <lee@...nel.org>, Pavel Machek <pavel@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Sebastian Reichel <sre@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	André Draszik <andre.draszik@...aro.org>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Jonathan Corbet <corbet@....net>,
	Shuah Khan <skhan@...uxfoundation.org>, linux-leds@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-rtc@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v2 02/12] dt-bindings: leds: document Samsung S2M series
 PMIC RGB LED device

On Mon, Jan 26, 2026 at 12:37:09AM +0530, Kaustabh Chakraborty wrote:
> Certain Samsung S2M series PMICs have a three-channel LED device with
> independent brightness control for each channel, typically used as
> status indicators in mobile phones. Document the devicetree schema from
> this device.
> 
> Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
> ---
>  .../bindings/leds/samsung,s2mu005-rgb.yaml         | 34 ++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/leds/samsung,s2mu005-rgb.yaml b/Documentation/devicetree/bindings/leds/samsung,s2mu005-rgb.yaml
> new file mode 100644
> index 0000000000000..6806b6d869ff7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/samsung,s2mu005-rgb.yaml
> @@ -0,0 +1,34 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/samsung,s2mu005-rgb.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: RGB LED Controller for Samsung S2M series PMICs
> +
> +maintainers:
> +  - Kaustabh Chakraborty <kauschluss@...root.org>
> +
> +description: |
> +  The Samsung S2M series PMIC RGB LED is a three-channel LED device with
> +  8-bit brightness control for each channel, typically used as status
> +  indicators in mobile phones.
> +
> +  This is a part of device tree bindings for S2M and S5M family of Power
> +  Management IC (PMIC).
> +
> +  See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
> +  additional information and example.
> +
> +allOf:
> +  - $ref: common.yaml#

This looks a bit lacking. Don't you need 3 child nodes for each or 
reference to the multi-color schema?

> +
> +properties:
> +  compatible:
> +    enum:
> +      - samsung,s2mu005-rgb
> +
> +required:
> +  - compatible
> +
> +unevaluatedProperties: false
> 
> -- 
> 2.52.0
>