linux-kernel - Re: [PATCH 2/3] dt-bindings: leds: add binding for WL-ICLED

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Message-ID: <74ce031c-dcae-4fcb-9598-73ce37e3ee99@kernel.org>
Date: Wed, 16 Apr 2025 12:21:14 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Ante Knezic <ante.knezic@...mholz.de>
Cc: conor+dt@...nel.org, corbet@....net, devicetree@...r.kernel.org,
 knezic@...mholz.com, krzk+dt@...nel.org, lee@...nel.org,
 linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-leds@...r.kernel.org, pavel@...nel.org, robh@...nel.org
Subject: Re: [PATCH 2/3] dt-bindings: leds: add binding for WL-ICLED

On 16/04/2025 11:06, Ante Knezic wrote:
> On Tue, Apr 15, 2025 Krzysztof Kozlowski wrote:
>>>  1 file changed, 88 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/leds/leds-wl-icled.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/leds/leds-wl-icled.yaml b/Documentation/devicetree/bindings/leds/leds-wl-icled.yaml
>>> new file mode 100644
>>> index 000000000000..bf79c7a1719b
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/leds/leds-wl-icled.yaml
>>> @@ -0,0 +1,88 @@
>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/leds/leds-wl-icled.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: LED driver for WL-ICLEDs from Wurth Elektronik.
>>
>> driver as Linux driver? Then drop and describe hardware.
> Sorry, I am not sure I quite understand what you mean here? Add "linux LED driver" to
> title?

I am asking to drop it and instead describe the hardware.

> 
>> Also drop full stop
> Ok, understood.
> 
>>> +
>>> +maintainers:
>>> +  - Ante Knezic <ante.knezic@...mholz.de>
>>> +
>>> +description: |
>>> +  The WL-ICLEDs are RGB LEDs with integrated controller that can be
>>> +  daisy-chained to arbitrary number of LEDs. Communication with LEDs is
>>> +  via SPI interface and can be single or two wire, depending on the model.
>>> +  For more product information please see the link below:
>>> +  https://www.we-online.com/en/components/products/WL-ICLED
>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - we,1315x246
>>> +      - we,1315x002
>>> +      - we,131x000
>>> +      - we,131161x
>>> +      - we,131212x
>>
>> Is that a wildcard in each compatible?
> Unfortunatelly, yes. Exact model names are quite elaborate, yet similar enough:
> 1315050930246   --> we,1315x246
> 1315050930002   --> we,1315x002
> 1313210530000   --> we,131x000
> 1312020030000       we,131x000
> 1311610030140   --> we,131161x
> 1312121320437   --> we,131212x
> 
> This seemed easier than writing complete model number... You want compatible
> expanded to full number anyway?

Yes, otherwise git grep for model won't work.


Best regards,
Krzysztof