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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-ORIG-GUID: JSPLgLc7FLN9-HhK-BU1dCzah4zKZ6hm X-Authority-Analysis: v=2.4 cv=Gs5yPE1C c=1 sm=1 tr=0 ts=6a843399 cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==: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=GYSh3LzNAAAA:8 a=EUspDBNiAAAA:8 a=Dd_GrI0rTSTmvMZCxHUA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 a=lWcdFasyL5yHfcDTNXXo:22 X-Proofpoint-GUID: JSPLgLc7FLN9-HhK-BU1dCzah4zKZ6hm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE4MDA3NiBTYWx0ZWRfX9p3xOLgD/U+Q bdfOgpOihf2nC0GzQOIejbPu3ijex/dOHKoQ+gv29Gr7TT4tleA2wF2M60spJQBaPJSvNA/4OwI q/U3BskOUkuZQzcnUdgvsiwr5asI+IRGC8iyoM62zHiIpHoMxMEHziYssHVJJvBmzeGKGQlnK16 yv2lKlPDaIf/Q9a1PtI5x2X0gua+lIDT4DJZaO1Rs07ReK8wVdqVZeBAL7pz0UoB2RVZKnuFIZb MTck5B2oD6faOFzo59dQ0xk+IDz3TD2C+55EpAL0rVxSneye6JoIVtgfIFG5Pr+rFMhdvThsRBU vB+B+jfUU1FBpkVpE7O7Fku4XR86SKx2Y5qm5uvsYy28Fd3d8Q+68ir/j8iAJ4K/DrOpzwFpClH MePUJ6VR1yMXDc+9MKGZInA1Rk5bc0wdLhE6Y6N31oRpAMZvuL0Qm6Yci6RvA/6WTGnrFiSPdae FcAKyFbUCAI8LeHLWYQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwODE4MDA3NiBTYWx0ZWRfX8690Qc6o/J39 MWf7Sc9ooLOBuFc0AoAhdlGlx1qXLZnQU6RuCyq5uxwfohzFOOrn1WIrkaVXGE4XcXewzOYsYmn ShywBhpD3clk+YslGeLeDzbnFZhD0Bs= 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 malwarescore=0 bulkscore=0 priorityscore=1501 clxscore=1015 suspectscore=0 phishscore=0 adultscore=0 impostorscore=0 spamscore=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