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4b45efe8 AS |
1 | /* |
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 | ||
24 | static const struct intel_lpss_platform_info spt_info = { | |
25 | .clk_rate = 120000000, | |
26 | }; | |
27 | ||
6a636ec0 MW |
28 | static const struct intel_lpss_platform_info bxt_info = { |
29 | .clk_rate = 100000000, | |
30 | }; | |
31 | ||
32 | static const struct intel_lpss_platform_info bxt_i2c_info = { | |
33 | .clk_rate = 133000000, | |
34 | }; | |
35 | ||
4b45efe8 AS |
36 | static const struct acpi_device_id intel_lpss_acpi_ids[] = { |
37 | /* SPT */ | |
38 | { "INT3446", (kernel_ulong_t)&spt_info }, | |
39 | { "INT3447", (kernel_ulong_t)&spt_info }, | |
6a636ec0 MW |
40 | /* BXT */ |
41 | { "80860AAC", (kernel_ulong_t)&bxt_i2c_info }, | |
42 | { "80860ABC", (kernel_ulong_t)&bxt_info }, | |
43 | { "80860AC2", (kernel_ulong_t)&bxt_info }, | |
44 | /* APL */ | |
45 | { "80865AAC", (kernel_ulong_t)&bxt_i2c_info }, | |
46 | { "80865ABC", (kernel_ulong_t)&bxt_info }, | |
47 | { "80865AC2", (kernel_ulong_t)&bxt_info }, | |
4b45efe8 AS |
48 | { } |
49 | }; | |
50 | MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids); | |
51 | ||
52 | static int intel_lpss_acpi_probe(struct platform_device *pdev) | |
53 | { | |
54 | struct intel_lpss_platform_info *info; | |
55 | const struct acpi_device_id *id; | |
56 | ||
57 | id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev); | |
58 | if (!id) | |
59 | return -ENODEV; | |
60 | ||
61 | info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info), | |
62 | GFP_KERNEL); | |
63 | if (!info) | |
64 | return -ENOMEM; | |
65 | ||
66 | info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
67 | info->irq = platform_get_irq(pdev, 0); | |
68 | ||
69 | pm_runtime_set_active(&pdev->dev); | |
70 | pm_runtime_enable(&pdev->dev); | |
71 | ||
72 | return intel_lpss_probe(&pdev->dev, info); | |
73 | } | |
74 | ||
75 | static int intel_lpss_acpi_remove(struct platform_device *pdev) | |
76 | { | |
77 | intel_lpss_remove(&pdev->dev); | |
78 | pm_runtime_disable(&pdev->dev); | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
83 | static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops); | |
84 | ||
85 | static struct platform_driver intel_lpss_acpi_driver = { | |
86 | .probe = intel_lpss_acpi_probe, | |
87 | .remove = intel_lpss_acpi_remove, | |
88 | .driver = { | |
89 | .name = "intel-lpss", | |
90 | .acpi_match_table = intel_lpss_acpi_ids, | |
91 | .pm = &intel_lpss_acpi_pm_ops, | |
92 | }, | |
93 | }; | |
94 | ||
95 | module_platform_driver(intel_lpss_acpi_driver); | |
96 | ||
97 | MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); | |
98 | MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>"); | |
99 | MODULE_DESCRIPTION("Intel LPSS ACPI driver"); | |
100 | MODULE_LICENSE("GPL v2"); |