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);
69