From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 0A63A49DB94; Thu, 3 Sep 2026 13:47:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788443297; cv=none; b=qLLbnOsHMI3/Kw65AEQTOBl0xz5u5Xtb64eU2rVjhdkJswOOsaT1GzLZngmjWNfll6N/j1ZMQKg5SU1bx0uwbEqhInt/Yur3Orz7Tr0nbSqNR5Su9NU9jD06aqTFdq/X2qq0Erm46/dhPakhvFAmApmjB6vzs0J7ehf8TSVFLww= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788443297; c=relaxed/simple; bh=1J/kC4Ihy2eG6s5M9mZicW8c6cc8GKwz1L+YwrAlmH0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uJrAAjirtdRNjW0ZaWv7UbUTUFFM+K6q+qSR12YKwSTr+kXLhY72VaOsHh9iJ/xgbRu+fv9G56BNalMNrDJxnZqARvg0cRBKpktBJO7u3vBykgI9QxgqrKFYcUwNCN6q/saQCbHer7BRa0G+xqkECmmvAziYuh9fQZfCMSMm5Rg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NghgxCIe; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NghgxCIe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1007A1F00ADB; Thu, 3 Sep 2026 13:47:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788443274; bh=bjxQon8BXhX+sOSPB9cNCMo6pqyNPDASmF8A4lzjpwg=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=NghgxCIe0VTmb2qdsstXtkNah6akSHRy+WH4H4JGQyKT35Y1M4TW/I2JL5Q2EGrLU 7Ah31nOAefVJAVP3sOOODkg850vdKZPGo00EQ773DC4DE3QPpyYXFFJyoL3BZgEGnZ ks21dLZqYPZXpm05PCDkMhXLerZfG372zCVcUzELMhS6mCPF1tA932LOjB0ETF2IEI zk7KrCk7ZU8vIYasLCJRjWGWlvI6YHA+U25rWHtuf5u33QpyV1AXIvHdLHw/TkoEBD /enk3yFkXpPDst/4BKOvZ+SF7mJj0+7c30lL4J6uyVBKtd0bqbf80CBwRCOWBAf1oS c+pDemEd9xNMw== Date: Thu, 3 Sep 2026 15:47:51 +0200 From: Krzysztof Kozlowski To: Kristian Brox Cc: David Heidelberg , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Konrad Dybcio , Luca Weiss , Dmitry Baryshkov , oe-linux-nfc@lists.linux.dev, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: Re: [PATCH v4 1/3] dt-bindings: net: nfc: add st,st21nfcd Message-ID: <20260903-inescapable-discerning-ibis-fcfdde@quoll> References: <20260902-fp5-st21nfcd-v4-v4-0-ded2f1c501be@proton.me> <20260902-fp5-st21nfcd-v4-v4-1-ded2f1c501be@proton.me> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260902-fp5-st21nfcd-v4-v4-1-ded2f1c501be@proton.me> On Wed, Sep 02, 2026 at 09:22:18PM +0000, Kristian Brox wrote: > Add a compatible for the ST ST21NFCD NFC controller. Document optional > SYS_CLK (clocks) and VPS_IO (vdd-io-supply). > > ST21NFCD is not I2C-only; the ST data brief lists I2C and SPI. > Split the spi-max-frequency if/else: forbid it for > st,st21nfcb-i2c and st,st21nfcc-i2c, require it for st,st21nfcb-spi, > and leave it optional for st,st21nfcd. Add clocks and vdd-io-supply to > the existing st,st21nfcb-i2c example instead of a second I2C example. > > Signed-off-by: Kristian Brox > --- > .../devicetree/bindings/net/nfc/st,st-nci.yaml | 49 +++++++++++++++------- > 1 file changed, 35 insertions(+), 14 deletions(-) Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof