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Mon, 24 Aug 2026 01:57:14 -0700 (PDT) X-Received: by 2002:a05:6102:6893:b0:74a:b1ee:e21b with SMTP id ada2fe7eead31-77a643461f0mr3515306137.1.1787561834572; Mon, 24 Aug 2026 01:57:14 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a59e2ddad2sm7355677a12.30.2026.08.24.01.57.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 24 Aug 2026 01:57:13 -0700 (PDT) Message-ID: <0cc4dcb5-cc90-46cd-9174-029416e7f51d@oss.qualcomm.com> Date: Mon, 24 Aug 2026 10:57:11 +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 v2 3/3] arm64: dts: qcom: qcm6490-fairphone-fp5: add ST21NFCD NFC To: Kristian Brox , oe-linux-nfc@lists.linux.dev Cc: david@ixit.cz, krzk+dt@kernel.org, devicetree@vger.kernel.org, dmitry.baryshkov@oss.qualcomm.com, luca.weiss@fairphone.com, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org References: <20260818205940.1973944-1-isyourbrainfoss@proton.me> <20260819210906.2500789-1-isyourbrainfoss@proton.me> <20260819210906.2500789-4-isyourbrainfoss@proton.me> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260819210906.2500789-4-isyourbrainfoss@proton.me> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: pAvDsuRf-R_HaeyXc-UrELZBANSTeNs- X-Proofpoint-GUID: pAvDsuRf-R_HaeyXc-UrELZBANSTeNs- X-Proofpoint-Spam-Info: AW1haW4tMjYwODI0MDA3OCBTYWx0ZWRfX2SnqqXpIVRHD Wec35YyAWqcrPF6XK8JXcg9MguXTmSjf0OxWnKYzaFmsike+2thhzrN8UnppnLduO9OwwibMt1e NskJWCL2d4Hom9SeS5K0yKzHL/64WqE= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI0MDA3OCBTYWx0ZWRfX3x+1rDi5NdLY 5PcmihSvXn0zKxr3skyoJ+py0c6BewEXIQs7IafNoEml7j8keCW61P38Q72yLzJrkU0gsDjzLIQ MjeYSvnvLMNu8MGBUyz0PVYJNZEQlyfmkhcE55UlzKDv89GjSdQqapsiJF0ZKcRt3V5RZj4ch4H htw7zPkXDNTe1CGDNJXX+nLcYDidBzYsdlamTi3temXwTXPreFFZMOZyDXsge9Wh9KRvF5ahk1J IjUQtEfAFG48LP2GBbfWnAgMJVFLXfIBbutj4R685yCdQwSXiGHOd0sWmlqghJo6AVioxNgGF53 aKkkuRqZGQTpbZczqAhQ1izMfjSTL88v7NcjqBwgNmDzVfVd1jeSvhX1iv0yj2GCSNfTOiZZHyB Jlh4lfba8zUV52C4J9JiSPXUUrx1Dz7dHKjHehne3XihvENS14nXd+byqrfKV8xmS/vGt2/XBzJ kwL4BvS7FgYTsGvX1sw== X-Authority-Analysis: v=2.4 cv=KcvidwYD c=1 sm=1 tr=0 ts=6a8c076c cx=c_pps a=N1BjEkVkxJi3uNfLdpvX3g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=FWA6L-ytD-VELHUIOsEA:9 a=QEXdDO2ut3YA:10 a=crWF4MFLhNY0qMRaF8an:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-24_02,2026-08-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 adultscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 clxscore=1015 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608240078 On 8/19/26 11:09 PM, Kristian Brox wrote: > Enable the ST21NFCD on i2c9 (0x08), IRQ TLMM 41, reset TLMM 38 > active-high. Compatible is st,st21nfcd (raw NCI). > > SYS_CLK is LN_BB_CLK2. VPS_IO is L18B (vreg_l18b). ese-present and > uicc-present follow the public schematic (NFC_SWP1/SWP2: SWP_SE to > SIM1, SWP_UICC to SIM2). Reader path is tested; SE/HCE is not. > > Signed-off-by: Kristian Brox > --- [...] > + nfc_reset_default: nfc-reset-default-state { > + pins = "gpio38"; > + function = "gpio"; > + drive-strength = <2>; > + bias-disable; > + output-high; This line is unnecessary, the driver should assert the pin otherwise Reviewed-by: Konrad Dybcio Konrad