18c2ecf20Sopenharmony_ci.. SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciMEI NFC 48c2ecf20Sopenharmony_ci------- 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ciSome Intel 8 and 9 Serieses chipsets supports NFC devices connected behind 78c2ecf20Sopenharmony_cithe Intel Management Engine controller. 88c2ecf20Sopenharmony_ciMEI client bus exposes the NFC chips as NFC phy devices and enables 98c2ecf20Sopenharmony_cibinding with Microread and NXP PN544 NFC device driver from the Linux NFC 108c2ecf20Sopenharmony_cisubsystem. 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci.. kernel-render:: DOT 138c2ecf20Sopenharmony_ci :alt: MEI NFC digraph 148c2ecf20Sopenharmony_ci :caption: **MEI NFC** Stack 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci digraph NFC { 178c2ecf20Sopenharmony_ci cl_nfc -> me_cl_nfc; 188c2ecf20Sopenharmony_ci "drivers/nfc/mei_phy" -> cl_nfc [lhead=bus]; 198c2ecf20Sopenharmony_ci "drivers/nfc/microread/mei" -> cl_nfc; 208c2ecf20Sopenharmony_ci "drivers/nfc/microread/mei" -> "drivers/nfc/mei_phy"; 218c2ecf20Sopenharmony_ci "drivers/nfc/pn544/mei" -> cl_nfc; 228c2ecf20Sopenharmony_ci "drivers/nfc/pn544/mei" -> "drivers/nfc/mei_phy"; 238c2ecf20Sopenharmony_ci "net/nfc" -> "drivers/nfc/microread/mei"; 248c2ecf20Sopenharmony_ci "net/nfc" -> "drivers/nfc/pn544/mei"; 258c2ecf20Sopenharmony_ci "neard" -> "net/nfc"; 268c2ecf20Sopenharmony_ci cl_nfc [label="mei/bus(nfc)"]; 278c2ecf20Sopenharmony_ci me_cl_nfc [label="me fw (nfc)"]; 288c2ecf20Sopenharmony_ci } 29