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

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Message-ID: <202509031658298690ab12@mail.local>
Date: Wed, 3 Sep 2025 18:58:29 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Frank Li <Frank.Li@....com>
Cc: 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 03/09/2025 12:55:36-0400, Frank Li wrote:
> Add compatible string nxp,rtc-pcf2123, which style is not consistent with
> existed compatible string because existed driver and dts use
> nxp,rtc-pcf2123.
> 
> Fix below CHECK_DTBS warning:
> arch/arm/boot/dts/nxp/imx/imx6q-evi.dtb: /soc/bus@...0000/spba-bus@...0000/spi@...8000/rtc@3: failed to match any schema with compatible: ['nxp,rtc-pcf2123']
> 
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
>  Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml
> index 11fcf0ca1ae07..595c20df6a411 100644
> --- a/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml
> +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml
> @@ -20,6 +20,7 @@ properties:
>        - nxp,pcf2127
>        - nxp,pcf2129
>        - nxp,pcf2131
> +      - nxp,rtc-pcf2123

Nope, you need to fix the devicetree.

>  
>    reg:
>      maxItems: 1
> -- 
> 2.34.1
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com