2 * Intel LPSS ACPI support.
4 * Copyright (C) 2015, Intel Corporation
6 * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 * Mika Westerberg <mika.westerberg@linux.intel.com>
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.
14 #include <linux/acpi.h>
15 #include <linux/ioport.h>
16 #include <linux/kernel.h>
17 #include <linux/module.h>
19 #include <linux/pm_runtime.h>
20 #include <linux/platform_device.h>
22 #include "intel-lpss.h"
24 static const struct intel_lpss_platform_info spt_info
= {
25 .clk_rate
= 120000000,
28 static const struct intel_lpss_platform_info bxt_info
= {
29 .clk_rate
= 100000000,
32 static const struct intel_lpss_platform_info bxt_i2c_info
= {
33 .clk_rate
= 133000000,
36 static const struct acpi_device_id intel_lpss_acpi_ids
[] = {
38 { "INT3446", (kernel_ulong_t
)&spt_info
},
39 { "INT3447", (kernel_ulong_t
)&spt_info
},
41 { "80860AAC", (kernel_ulong_t
)&bxt_i2c_info
},
42 { "80860ABC", (kernel_ulong_t
)&bxt_info
},
43 { "80860AC2", (kernel_ulong_t
)&bxt_info
},
45 { "80865AAC", (kernel_ulong_t
)&bxt_i2c_info
},
46 { "80865ABC", (kernel_ulong_t
)&bxt_info
},
47 { "80865AC2", (kernel_ulong_t
)&bxt_info
},
50 MODULE_DEVICE_TABLE(acpi
, intel_lpss_acpi_ids
);
52 static int intel_lpss_acpi_probe(struct platform_device
*pdev
)
54 struct intel_lpss_platform_info
*info
;
55 const struct acpi_device_id
*id
;
57 id
= acpi_match_device(intel_lpss_acpi_ids
, &pdev
->dev
);
61 info
= devm_kmemdup(&pdev
->dev
, (void *)id
->driver_data
, sizeof(*info
),
66 info
->mem
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
67 info
->irq
= platform_get_irq(pdev
, 0);
69 pm_runtime_set_active(&pdev
->dev
);
70 pm_runtime_enable(&pdev
->dev
);
72 return intel_lpss_probe(&pdev
->dev
, info
);
75 static int intel_lpss_acpi_remove(struct platform_device
*pdev
)
77 intel_lpss_remove(&pdev
->dev
);
78 pm_runtime_disable(&pdev
->dev
);
83 static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops
);
85 static struct platform_driver intel_lpss_acpi_driver
= {
86 .probe
= intel_lpss_acpi_probe
,
87 .remove
= intel_lpss_acpi_remove
,
90 .acpi_match_table
= intel_lpss_acpi_ids
,
91 .pm
= &intel_lpss_acpi_pm_ops
,
95 module_platform_driver(intel_lpss_acpi_driver
);
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");