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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-GUID: VERapmgbSngccMiJUOcDwGujDd0p484V X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE4MDA3NiBTYWx0ZWRfX1qr/CMMahbw2 FsbaPdtODhij0CnSCfs2nAJ2AmkHo+7GrDzLwV8N2aos7Ub3XRfq0KCoy8z36jdjX3ziw7LrLA8 QJVqaJD1zQVWJqD77mwjFX7Ia3yCuAfJ8HP4eHDvfbHC3Vwz30bVzNNXGXVZNYUw6dMVlJDGSH5 pvs6CCvEuzxlpdgcP75GHSa8ZkENdqeTorhafOcSyg9qmJCmShMTBEvxAz7bOnTVyc4jl7hE/9y 2uRPB1ZPQX1jhKD9qZ4mQTGI0SVAf8GvU9ztLtfMm2FU1czjwNUGpgROKY7bYtE6zu6B9/nvICN tqux7bKKTsrH1hVMO3zgICYoFEAwhcJQxbYOsQjTnAFHzCAyFmZyHFgEPAh+cLza2U3aV2gJVWI NqTUxltJCM5hWE318S20WmeDDTJLCqSrkf5gXwCnsyxyj3DAPkgcPRnnokDLn2Er+QU7Ut+sV3j XDYmOCcZxIKB9BDS2Fw== X-Proofpoint-Spam-Info: AW1haW4tMjYwODE4MDA3NiBTYWx0ZWRfX8p4qAEF1QN9T fiYZaxB9OWqtAkOmn4ntbJMhS7r618Rd/LDiXJvRNHCb8jB9Lzo7z/A77wcV8Egqax8uGHrMkH1 UDkTxNZItGN2CWgQLCFSVnBQrxtFXJo= X-Authority-Analysis: v=2.4 cv=FsU1OWrq c=1 sm=1 tr=0 ts=6a843399 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=GYSh3LzNAAAA:8 a=EUspDBNiAAAA:8 a=Dd_GrI0rTSTmvMZCxHUA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 a=lWcdFasyL5yHfcDTNXXo:22 X-Proofpoint-ORIG-GUID: VERapmgbSngccMiJUOcDwGujDd0p484V 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 impostorscore=0 spamscore=0 phishscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 adultscore=0 suspectscore=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