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Linux_Drivers/linux_5.10/Documentation/driver-api/mei/nfc.rst
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
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Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

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.. SPDX-License-Identifier: GPL-2.0
MEI NFC
-------
Some Intel 8 and 9 Serieses chipsets supports NFC devices connected behind
the Intel Management Engine controller.
MEI client bus exposes the NFC chips as NFC phy devices and enables
binding with Microread and NXP PN544 NFC device driver from the Linux NFC
subsystem.
.. kernel-render:: DOT
:alt: MEI NFC digraph
:caption: **MEI NFC** Stack
digraph NFC {
cl_nfc -> me_cl_nfc;
"drivers/nfc/mei_phy" -> cl_nfc [lhead=bus];
"drivers/nfc/microread/mei" -> cl_nfc;
"drivers/nfc/microread/mei" -> "drivers/nfc/mei_phy";
"drivers/nfc/pn544/mei" -> cl_nfc;
"drivers/nfc/pn544/mei" -> "drivers/nfc/mei_phy";
"net/nfc" -> "drivers/nfc/microread/mei";
"net/nfc" -> "drivers/nfc/pn544/mei";
"neard" -> "net/nfc";
cl_nfc [label="mei/bus(nfc)"];
me_cl_nfc [label="me fw (nfc)"];
}