From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ixit.cz (ixit.cz [84.42.129.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2BC452BE621; Tue, 18 Aug 2026 23:22:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=84.42.129.46 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787095362; cv=none; b=gTfNAS5OVkJxGYpxe6bL0I79cfNE6gOQLy75sK7KJE7JeBzfDjQA+0lXQElxU0UMH7n7RURQeC0pCRPMStUTr+X25HkACaG2n6+abrgU1UchaMA2xzYvHQyeUqY7EwcRfdCN+UGDjJFc96PJ3ZMOziRH1RQAnO+Il+UdcIhpnCM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787095362; c=relaxed/simple; bh=Di+Untc5QDv2uGNXQYM+e5ElnCl0AEfACepIPVd8i64=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rGaI1zfgUIuj8H1zo/2B6PQufodOlJR3z97At8jpdwayavOb8mIk6Y3mV0Dt0lLUaBwlN168/i6Q+TrmPF2+lR+PHlvzl8Oqvl/ioC3Yf5QTnyKGWCjn++1NxhpH8BIj0nuDaXnp45LnDdVltq7l3heURKnxyD1u2B5f7RHkv9g= ARC-Authentication-Results:i=1; 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t=1787095351; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=lJi1R7blbBTWLpX63ppzRZGExWfW5lcs2UkIXrQQpII=; b=c+uZXVtkPwjYWtLqZ8BW+84EeUXg0JDMz/vWaUalRnKOLvXLJX7BFRIrAQ6NCBlkaZ0/ek Y6E8G8BBVuLUZ8C+Xqk9S1YG1RnII7aMmXvjC3pe8oLO76TcoMGzhBcwTfv/YPE+tBJZ4V chWPoVa3Mo1+YaVvBJbY6KEbEmMepfo= Message-ID: Date: Wed, 19 Aug 2026 01:22:31 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] dt-bindings: net: nfc: add st,st21nfcd-i2c To: Kristian Brox , oe-linux-nfc@lists.linux.dev Cc: krzysztof.kozlowski@linaro.org, luca.weiss@fairphone.com, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org References: <20260818205940.1973944-1-isyourbrainfoss@proton.me> <20260818205940.1973944-2-isyourbrainfoss@proton.me> Content-Language: en-US, cs-CZ From: David Heidelberg Autocrypt: addr=david@ixit.cz; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 18/08/2026 22:59, Kristian Brox wrote: > The ST21NFCD (e.g. Fairphone 5) speaks raw NCI on I2C. Existing > st,st21nfcb-* and st,st21nfcc-i2c compatibles stay NDLC. Add a > separate compatible so those boards are not switched to the wrong > framing. > > Also document the difference and add an I2C example without > ese-present / uicc-present. > > Signed-off-by: Kristian Brox > --- > diff --git a/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml b/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml > index 1dcbddbc5..3523a8df0 100644 > --- a/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml > +++ b/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml > @@ -11,10 +11,14 @@ maintainers: > > properties: > compatible: > + description: | > + st,st21nfcb-* and st,st21nfcc-i2c use NDLC on the wire. > + st,st21nfcd-i2c is ST21NFCD with raw NCI (no NDLC PCB). > enum: > - st,st21nfcb-i2c > - st,st21nfcb-spi > - st,st21nfcc-i2c > + - st,st21nfcd-i2c Hello Kristian. Thank you for your patches! Before I do full review, for next revision, definitely the compatible should omit -i2c suffix, thus only `st,st21nfcd`. If possible, send next revision with b4 (thou you don't have to, it's usually more fancy and convenient for both parties, takes care about CCing the right people, checkpatch etc.) [1]. Thanks David [1] https://b4.docs.kernel.org/en/latest/contributor/overview.html [...]