drivers/misc/pvpanic/pvpanic-pci.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  *  Pvpanic PCI Device Support
   4  *
   5  *  Copyright (C) 2021 Oracle.
   6  */
   7
   8 #include <linux/errno.h>
   9 #include <linux/module.h>
  10 #include <linux/pci.h>
  11 #include <linux/types.h>
  12
  13 #include "pvpanic.h"
  14
  15 #define PCI_DEVICE_ID_REDHAT_PVPANIC     0x0011
  16
  17 MODULE_AUTHOR("Mihai Carabas <mihai.carabas@oracle.com>");
  18 MODULE_DESCRIPTION("pvpanic device driver");
  19 MODULE_LICENSE("GPL");
  20
  21 static int pvpanic_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
  22 {
  23         void __iomem *base;
  24         int ret;
  25
  26         ret = pcim_enable_device(pdev);
  27         if (ret < 0)
  28                 return ret;
  29
  30         base = pcim_iomap(pdev, 0, 0);
  31         if (!base)
  32                 return -ENOMEM;
  33
  34         return devm_pvpanic_probe(&pdev->dev, base);
  35 }
  36
  37 static const struct pci_device_id pvpanic_pci_id_tbl[]  = {
  38         { PCI_DEVICE(PCI_VENDOR_ID_REDHAT, PCI_DEVICE_ID_REDHAT_PVPANIC)},
  39         {}
  40 };
  41 MODULE_DEVICE_TABLE(pci, pvpanic_pci_id_tbl);
  42
  43 static struct pci_driver pvpanic_pci_driver = {
  44         .name =         "pvpanic-pci",
  45         .id_table =     pvpanic_pci_id_tbl,
  46         .probe =        pvpanic_pci_probe,
  47         .driver = {
  48                 .dev_groups = pvpanic_dev_groups,
  49         },
  50 };
  51 module_pci_driver(pvpanic_pci_driver);