root/drivers/usb/typec/altmodes/nvidia.c

DEFINITIONS

1. nvidia_altmode_probe
2. nvidia_altmode_remove

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2019 NVIDIA Corporation. All rights reserved.
   4  *
   5  * NVIDIA USB Type-C Alt Mode Driver
   6  */
   7 #include <linux/module.h>
   8 #include <linux/usb/typec_altmode.h>
   9 #include <linux/usb/typec_dp.h>
  10 #include "displayport.h"
  11 
  12 static int nvidia_altmode_probe(struct typec_altmode *alt)
  13 {
  14         if (alt->svid == USB_TYPEC_NVIDIA_VLINK_SID)
  15                 return dp_altmode_probe(alt);
  16         else
  17                 return -ENOTSUPP;
  18 }
  19 
  20 static void nvidia_altmode_remove(struct typec_altmode *alt)
  21 {
  22         if (alt->svid == USB_TYPEC_NVIDIA_VLINK_SID)
  23                 dp_altmode_remove(alt);
  24 }
  25 
  26 static const struct typec_device_id nvidia_typec_id[] = {
  27         { USB_TYPEC_NVIDIA_VLINK_SID, TYPEC_ANY_MODE },
  28         { },
  29 };
  30 MODULE_DEVICE_TABLE(typec, nvidia_typec_id);
  31 
  32 static struct typec_altmode_driver nvidia_altmode_driver = {
  33         .id_table = nvidia_typec_id,
  34         .probe = nvidia_altmode_probe,
  35         .remove = nvidia_altmode_remove,
  36         .driver = {
  37                 .name = "typec_nvidia",
  38                 .owner = THIS_MODULE,
  39         },
  40 };
  41 module_typec_altmode_driver(nvidia_altmode_driver);
  42 
  43 MODULE_LICENSE("GPL v2");
  44 MODULE_DESCRIPTION("NVIDIA USB Type-C Alt Mode Driver");