blob: 0d92d73bfa0ea80d84850f94b5225ddbae163c38 [file] [log] [blame]
Andy Shevchenko4b45efe2015-07-27 18:04:03 +03001/*
2 * Intel LPSS ACPI support.
3 *
4 * Copyright (C) 2015, Intel Corporation
5 *
6 * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 * Mika Westerberg <mika.westerberg@linux.intel.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/acpi.h>
15#include <linux/ioport.h>
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/pm.h>
19#include <linux/pm_runtime.h>
20#include <linux/platform_device.h>
21
22#include "intel-lpss.h"
23
24static const struct intel_lpss_platform_info spt_info = {
25 .clk_rate = 120000000,
26};
27
28static const struct acpi_device_id intel_lpss_acpi_ids[] = {
29 /* SPT */
30 { "INT3446", (kernel_ulong_t)&spt_info },
31 { "INT3447", (kernel_ulong_t)&spt_info },
32 { }
33};
34MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids);
35
36static int intel_lpss_acpi_probe(struct platform_device *pdev)
37{
38 struct intel_lpss_platform_info *info;
39 const struct acpi_device_id *id;
40
41 id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev);
42 if (!id)
43 return -ENODEV;
44
45 info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info),
46 GFP_KERNEL);
47 if (!info)
48 return -ENOMEM;
49
50 info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
51 info->irq = platform_get_irq(pdev, 0);
52
53 pm_runtime_set_active(&pdev->dev);
54 pm_runtime_enable(&pdev->dev);
55
56 return intel_lpss_probe(&pdev->dev, info);
57}
58
59static int intel_lpss_acpi_remove(struct platform_device *pdev)
60{
61 intel_lpss_remove(&pdev->dev);
62 pm_runtime_disable(&pdev->dev);
63
64 return 0;
65}
66
67static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops);
68
69static struct platform_driver intel_lpss_acpi_driver = {
70 .probe = intel_lpss_acpi_probe,
71 .remove = intel_lpss_acpi_remove,
72 .driver = {
73 .name = "intel-lpss",
74 .acpi_match_table = intel_lpss_acpi_ids,
75 .pm = &intel_lpss_acpi_pm_ops,
76 },
77};
78
79module_platform_driver(intel_lpss_acpi_driver);
80
81MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
82MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
83MODULE_DESCRIPTION("Intel LPSS ACPI driver");
84MODULE_LICENSE("GPL v2");