linux-kernel - Re: [PATCH v2 1/2] dt-bindings: pinctrl: document the Milos Top Level Mode Multiplexer

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Message-Id: <DB293G0PC5P8.13IW22M6DDESM@fairphone.com>
Date: Thu, 03 Jul 2025 09:44:32 +0200
From: "Luca Weiss" <luca.weiss@...rphone.com>
To: "Krzysztof Kozlowski" <krzk@...nel.org>
Cc: "Bjorn Andersson" <andersson@...nel.org>, "Linus Walleij"
 <linus.walleij@...aro.org>, "Rob Herring" <robh@...nel.org>, "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>, "Conor Dooley" <conor+dt@...nel.org>,
 <~postmarketos/upstreaming@...ts.sr.ht>, <phone-devel@...r.kernel.org>,
 <linux-arm-msm@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
 <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: pinctrl: document the Milos Top
 Level Mode Multiplexer

On Thu Jul 3, 2025 at 9:41 AM CEST, Krzysztof Kozlowski wrote:
> On Wed, Jul 02, 2025 at 05:56:16PM +0200, Luca Weiss wrote:
>> Document the Top Level Mode Multiplexer on the Milos Platform.
>
> What is Milos platform? Does it have some sort of model number how we
> usually expect? Wasn't this SM7325 or similar?
>
> The problem with such new naming that it awfully sounds like family
> names, so just expand the name and explain it.

Please go argue with Bjorn/Konrad about this, wasn't my idea.

https://lore.kernel.org/linux-arm-msm/aGMI1Zv6D+K+vWZL@hu-bjorande-lv.qualcomm.com/
https://lore.kernel.org/linux-arm-msm/b98d305b-247f-415b-8675-50d073452feb@oss.qualcomm.com/

Regards
Luca

>
>> 
>> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
>> ---
>>  .../bindings/pinctrl/qcom,milos-tlmm.yaml          | 133 +++++++++++++++++++++
>>  1 file changed, 133 insertions(+)
>> 
>> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,milos-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,milos-tlmm.yaml
>> new file mode 100644
>> index 0000000000000000000000000000000000000000..0091204df20a0eca7d0d0e766afcb8d08042b015
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,milos-tlmm.yaml
>> @@ -0,0 +1,133 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/pinctrl/qcom,milos-tlmm.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm Technologies, Inc. Milos TLMM block
>> +
>> +maintainers:
>> +  - Luca Weiss <luca.weiss@...rphone.com>
>> +
>> +description:
>> +  Top Level Mode Multiplexer pin controller in Qualcomm Milos SoC.
>> +
>> +allOf:
>> +  - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    const: qcom,milos-tlmm
>
> Before you start adding such 'milos' all over the code, you need to
> update the rule for compatible naming. I don't know how thus I would not
> recomment the switch from obvious model number to non-obvious cryptic
> alias.
>
> Best regards,
> Krzysztof