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Tue, 18 Aug 2026 03:27:36 -0700 (PDT) X-Received: by 2002:a05:622a:190a:b0:51c:2324:666 with SMTP id d75a77b69052e-52d85425e6fmr252265751cf.3.1787048856096; Tue, 18 Aug 2026 03:27:36 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a3d859b274sm1576957a12.25.2026.08.18.03.27.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Aug 2026 03:27:34 -0700 (PDT) Message-ID: <8c04340d-6d19-4292-a873-7ded67caacca@oss.qualcomm.com> Date: Tue, 18 Aug 2026 12:27:31 +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 v5 6/6] arm64: dts: qcom: milos-fairphone-fp6: Add NFC To: Jorijn van der Graaf , David Heidelberg , Krzysztof Kozlowski , Krzysztof Kozlowski Cc: Krzysztof Kozlowski , Andrew Lunn , Bjorn Andersson , Conor Dooley , Conor Dooley , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Konrad Dybcio , Paolo Abeni , Rob Herring , Luca Weiss , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, oe-linux-nfc@lists.linux.dev References: <20260811220135.472380-1-jorijnvdgraaf@catcrafts.net> <20260811220135.472380-7-jorijnvdgraaf@catcrafts.net> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260811220135.472380-7-jorijnvdgraaf@catcrafts.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODE4MDA3NiBTYWx0ZWRfX+hKl4WUpQNv1 lwRM8yaJYMB7zX6Bf3Nz1hMOp9DsFKIEWD3Beibmg662LwGQcwY2YzzZNizOoUMAtAtMgqGml/4 kMUeiwHgu5mfpcYb2GRwX8IEBcoKCmc= X-Proofpoint-ORIG-GUID: m3d7CKjPlXE7rlDrref7tTEXG_iLsS-I X-Authority-Analysis: v=2.4 cv=UfFhjqSN c=1 sm=1 tr=0 ts=6a843399 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=GYSh3LzNAAAA:8 a=EUspDBNiAAAA:8 a=Dd_GrI0rTSTmvMZCxHUA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 a=lWcdFasyL5yHfcDTNXXo:22 X-Proofpoint-GUID: m3d7CKjPlXE7rlDrref7tTEXG_iLsS-I X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE4MDA3NiBTYWx0ZWRfX0iYUATt1O67C sVyks84svMLhQjGA4Azn/KrOqt97WWgmSl2ijY2AbfmjuMGvYWq2fJEqtGqsVi5wEPzaJyYwyg5 AsA2Ww7BPVUdyKJywVqz2/be9XjfjB5USwttjv35dNBv52XCSpomAb6S95ioV+/OQb6pceUW0Ot GTGkIsJ+AVKwbGe7wuChxSrxAOcWgYXpijFGTQ0fWHt4JBhwIf6p1CcPwwlplIM+2F1mLmldTtB urFE0hZHEhH4h6HC4rOogB2q8dmuuyJ79rMe/RhIbfRapOaM6VpZ0WHJORPvRu888jCztjfagTV Y1/RB07+DmdDVCWsre8KH24MyHJJDAIoXEpw6e9SS90opOVQ0RM8MnPxzpJeOaGxXt/gcEKKwRT KFF/CkQg5twp4WIgQqRHGOnodfdiw5vp14VAnrdneX8o2XfYbaC+LVBO8PA5ZG6gk19U03zK1q9 gN8HOlOi8qFxDMYX6Mg== 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=2026-08-18_01,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 impostorscore=0 suspectscore=0 adultscore=0 spamscore=0 priorityscore=1501 clxscore=1015 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608180076 On 8/12/26 12:01 AM, Jorijn van der Graaf wrote: > Add the Samsung S3NRN4V NCI NFC controller on i2c1. Its XI clock comes > from the PMK7635 CLK7_LN buffer (RPMH_LN_BB_CLK2), and the reference is > load-bearing: with no clocks reference at all the chip polls but never > activates a tag, while a held rpmh clock vote lets it read (verified on > hardware). hw generally works better when plugged in! > PVDD is fed from PM7550 LDO20, the rail the downstream driver switches > for this chip. > > The enable line is routed to the chip's power-down input. The driver > drives its "en" descriptor to logical 1 to hold the chip powered down, > and on this board the chip is off while the pin is physically high, so > the line is GPIO_ACTIVE_HIGH. The pin is pulled up so the chip stays > off while the line is not driven. > > Assisted-by: Claude:claude-opus-4-8 > Assisted-by: Claude:claude-fable-5 > Signed-off-by: Jorijn van der Graaf > --- Reviewed-by: Konrad Dybcio Konrad