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 8F2944BFE93; Tue, 15 Sep 2026 19:12:04 +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=1789499526; cv=none; b=orEGIQcW03bvCt1ae0aAea9HjGiSLhrMgpnBA1vMELIpeWzQziSgfe2dsV/k4OY+Oc0wMe4dr6jjKM2Fh3P5/xwlcrd8dh51UDcDuOeRebjq3T1KyS4yly93IfgQToS0+u8/lCdSDC4pOBEnl3fLYo26yGxgZb+owbdXhM+sbls= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789499526; c=relaxed/simple; bh=f1zNdSJg1o8BUkFINZNhccQHuVqHZH4JwWbwqFiVZ/Y=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=gttphVN8zeBdp62LmXDdi7rWlTQf5TAgKhgXtFuFKbXDwGkj71c+D8JFlFvl5bFocb30gcjPn7K/iPaS6qcxSh/0ZjH+Z2N80MHOdaG/sNmFxEbjiuj/5BWVZipbwIWpN/uKnZ9+cDn+a6OBnYpFnwADQM3X1VEGkozMY02ivOQ= ARC-Authentication-Results:i=1; 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bh=3tQYdPbdvmVniCNpMNauGvwGZKAhllS/E3SmEnCd4is=; b=fUkPb4lNPhTbN0V8wIRStdLHse890Sj/XmLEcdv386dfr509pge0jqM1nSq+bc+9yxpmNH BIgQHwuCWkMxoZt5Y0pIuocot4/N9LnzTCWwp6GNkVDeCFtEBIV6qooXMDMFRCsAkHwall MWrClAwBUbYkfz3xapOyf5WGsk9nhvY= Message-ID: Date: Tue, 15 Sep 2026 21:11:55 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] arm64: dts: qcom: sdm845-lg: Enable NFC To: Konrad Dybcio , Paul Sajna , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht References: <20260906-sdm845-lg-judy-nfc-v2-1-63aeb7b1a5f6@postmarketos.org> <28fb606b-8631-483a-a02e-ecd16e9cc238@ixit.cz> <062d0fc6-dcae-4636-ae95-c8144317f0ff@oss.qualcomm.com> 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: 8bit On 09/09/2026 15:16, Konrad Dybcio wrote: > On 9/6/26 11:32 PM, David Heidelberg wrote: >> On 06/09/2026 23:11, Paul Sajna wrote: >>> Add the i2c and tlmm nodes to support the NXP PN547 NFC chip >>> >>> Downstream dtsi for reference: >>> https://github.com/LineageOS/android_kernel_lge_sdm845/blob/lineage-22.2/arch/arm64/boot/dts/lge/sdm845-judy/sdm845-judyln_lao_com/sdm845-judyln_lao_com-nfc.dtsi >>> >>> Signed-off-by: Paul Sajna >>> --- > > [...] > >>> +    nfc_default: nfc-default-state { >>> +        pins = "gpio12", "gpio62", "gpio63", "gpio116"; >> >> here the verbosity may not be bad (device-tree functions as documentation too) >> gpio116 is associated with eSE NFC part (just guessing, but... it worked before, so), and generally the pn547 doesn't need it at all to work. >> >> TBH not sure if there or what consensus is here about this. The eSE needs it, but we don't have the driver thus also no integration with NFC part. > > The eSE driver would still be acting on the NFC node, right? So far that's the Android design. So, yes. David > > Konrad