drivers/platform/x86/intel_scu_pcidrv.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * PCI driver for the Intel SCU.
   4  *
   5  * Copyright (C) 2008-2010, 2015, 2020 Intel Corporation
   6  * Authors: Sreedhara DS (sreedhara.ds@intel.com)
   7  *          Mika Westerberg <mika.westerberg@linux.intel.com>
   8  */
   9
  10 #include <linux/errno.h>
  11 #include <linux/init.h>
  12 #include <linux/pci.h>
  13
  14 #include <asm/intel-mid.h>
  15 #include <asm/intel_scu_ipc.h>
  16
  17 static int intel_scu_pci_probe(struct pci_dev *pdev,
  18                                const struct pci_device_id *id)
  19 {
  20         void (*setup_fn)(void) = (void (*)(void))id->driver_data;
  21         struct intel_scu_ipc_data scu_data = {};
  22         struct intel_scu_ipc_dev *scu;
  23         int ret;
  24
  25         ret = pcim_enable_device(pdev);
  26         if (ret)
  27                 return ret;
  28
  29         scu_data.mem = pdev->resource[0];
  30         scu_data.irq = pdev->irq;
  31
  32         scu = intel_scu_ipc_register(&pdev->dev, &scu_data);
  33         if (IS_ERR(scu))
  34                 return PTR_ERR(scu);
  35
  36         if (setup_fn)
  37                 setup_fn();
  38         return 0;
  39 }
  40
  41 static void intel_mid_scu_setup(void)
  42 {
  43         intel_scu_devices_create();
  44 }
  45
  46 static const struct pci_device_id pci_ids[] = {
  47         { PCI_VDEVICE(INTEL, 0x080e),
  48           .driver_data = (kernel_ulong_t)intel_mid_scu_setup },
  49         { PCI_VDEVICE(INTEL, 0x08ea),
  50           .driver_data = (kernel_ulong_t)intel_mid_scu_setup },
  51         { PCI_VDEVICE(INTEL, 0x0a94) },
  52         { PCI_VDEVICE(INTEL, 0x11a0),
  53           .driver_data = (kernel_ulong_t)intel_mid_scu_setup },
  54         { PCI_VDEVICE(INTEL, 0x1a94) },
  55         { PCI_VDEVICE(INTEL, 0x5a94) },
  56         {}
  57 };
  58
  59 static struct pci_driver intel_scu_pci_driver = {
  60         .driver = {
  61                 .suppress_bind_attrs = true,
  62         },
  63         .name = "intel_scu",
  64         .id_table = pci_ids,
  65         .probe = intel_scu_pci_probe,
  66 };
  67
  68 builtin_pci_driver(intel_scu_pci_driver);