1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Platform driver for the Intel SCU. |
4 | * |
5 | * Copyright (C) 2019, Intel Corporation |
6 | * Authors: Divya Sasidharan <divya.s.sasidharan@intel.com> |
7 | * Mika Westerberg <mika.westerberg@linux.intel.com> |
8 | * Rajmohan Mani <rajmohan.mani@intel.com> |
9 | */ |
10 | |
11 | #include <linux/err.h> |
12 | #include <linux/errno.h> |
13 | #include <linux/ioport.h> |
14 | #include <linux/mod_devicetable.h> |
15 | #include <linux/module.h> |
16 | #include <linux/platform_device.h> |
17 | |
18 | #include <asm/intel_scu_ipc.h> |
19 | |
20 | static int intel_scu_platform_probe(struct platform_device *pdev) |
21 | { |
22 | struct intel_scu_ipc_data scu_data = {}; |
23 | struct intel_scu_ipc_dev *scu; |
24 | const struct resource *res; |
25 | |
26 | scu_data.irq = platform_get_irq_optional(pdev, 0); |
27 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
28 | if (!res) |
29 | return -ENOMEM; |
30 | |
31 | scu_data.mem = *res; |
32 | |
33 | scu = devm_intel_scu_ipc_register(&pdev->dev, &scu_data); |
34 | if (IS_ERR(ptr: scu)) |
35 | return PTR_ERR(ptr: scu); |
36 | |
37 | platform_set_drvdata(pdev, data: scu); |
38 | return 0; |
39 | } |
40 | |
41 | static const struct acpi_device_id intel_scu_acpi_ids[] = { |
42 | { "INTC1026" }, |
43 | {} |
44 | }; |
45 | MODULE_DEVICE_TABLE(acpi, intel_scu_acpi_ids); |
46 | |
47 | static struct platform_driver intel_scu_platform_driver = { |
48 | .probe = intel_scu_platform_probe, |
49 | .driver = { |
50 | .name = "intel_scu" , |
51 | .acpi_match_table = intel_scu_acpi_ids, |
52 | }, |
53 | }; |
54 | module_platform_driver(intel_scu_platform_driver); |
55 | |
56 | MODULE_AUTHOR("Divya Sasidharan <divya.s.sasidharan@intel.com>" ); |
57 | MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com" ); |
58 | MODULE_AUTHOR("Rajmohan Mani <rajmohan.mani@intel.com>" ); |
59 | MODULE_DESCRIPTION("Intel SCU platform driver" ); |
60 | MODULE_LICENSE("GPL v2" ); |
61 | |