linux-kernel - Re: [PATCH 1/1] dt-bindings: rtc: pcf2127: add compatible string nxp,rtc-pcf2123

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Message-ID: <dbf8e04a-724c-455a-9b4e-865bf5192a8a@kernel.org>
Date: Thu, 4 Sep 2025 15:09:26 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Frank Li <Frank.li@....com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>,
 "open list:REAL TIME CLOCK (RTC) SUBSYSTEM" <linux-rtc@...r.kernel.org>,
 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
 <devicetree@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>,
 imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] dt-bindings: rtc: pcf2127: add compatible string
 nxp,rtc-pcf2123

On 04/09/2025 14:06, Alexandre Belloni wrote:
>>>>
>>>> Oh, driver drivers/rtc/rtc-pcf2123.c also use nxp,rtc-pcf2123. For such old
>>>> devices, generally keep it as it.
>>>>
>>>> Maybe DT team members provide more professional comments for it.
>>>
>>> It is there for DT ABI compatibility, we don't need to advertise its
>>> existence in the doc, you must fix the device tree.
>>
>> In-tree compatibles should be documented anyway (as "deprecated: true").
>>
> 
> There is one device tree to fix, then we won't have any occurrence
> in-tree anymore.

The driver is, unless there is patch dropping it somewhere...

Best regards,
Krzysztof