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
20static 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(scu))
35		return PTR_ERR(scu);
36
37	platform_set_drvdata(pdev, scu);
38	return 0;
39}
40
41static const struct acpi_device_id intel_scu_acpi_ids[] = {
42	{ "INTC1026" },
43	{}
44};
45MODULE_DEVICE_TABLE(acpi, intel_scu_acpi_ids);
46
47static 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};
54module_platform_driver(intel_scu_platform_driver);
55
56MODULE_AUTHOR("Divya Sasidharan <divya.s.sasidharan@intel.com>");
57MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com");
58MODULE_AUTHOR("Rajmohan Mani <rajmohan.mani@intel.com>");
59MODULE_DESCRIPTION("Intel SCU platform driver");
60MODULE_LICENSE("GPL v2");
61