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>
21 #include <linux/property.h>
23 #include "intel-lpss.h"
25 static const struct intel_lpss_platform_info spt_info
= {
26 .clk_rate
= 120000000,
29 static struct property_entry spt_i2c_properties
[] = {
30 PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
34 static struct property_set spt_i2c_pset
= {
35 .properties
= spt_i2c_properties
,
38 static const struct intel_lpss_platform_info spt_i2c_info
= {
39 .clk_rate
= 120000000,
40 .pset
= &spt_i2c_pset
,
43 static const struct intel_lpss_platform_info bxt_info
= {
44 .clk_rate
= 100000000,
47 static const struct intel_lpss_platform_info bxt_i2c_info
= {
48 .clk_rate
= 133000000,
51 static const struct acpi_device_id intel_lpss_acpi_ids
[] = {
53 { "INT3446", (kernel_ulong_t
)&spt_i2c_info
},
54 { "INT3447", (kernel_ulong_t
)&spt_i2c_info
},
56 { "80860AAC", (kernel_ulong_t
)&bxt_i2c_info
},
57 { "80860ABC", (kernel_ulong_t
)&bxt_info
},
58 { "80860AC2", (kernel_ulong_t
)&bxt_info
},
60 { "80865AAC", (kernel_ulong_t
)&bxt_i2c_info
},
61 { "80865ABC", (kernel_ulong_t
)&bxt_info
},
62 { "80865AC2", (kernel_ulong_t
)&bxt_info
},
65 MODULE_DEVICE_TABLE(acpi
, intel_lpss_acpi_ids
);
67 static int intel_lpss_acpi_probe(struct platform_device
*pdev
)
69 struct intel_lpss_platform_info
*info
;
70 const struct acpi_device_id
*id
;
72 id
= acpi_match_device(intel_lpss_acpi_ids
, &pdev
->dev
);
76 info
= devm_kmemdup(&pdev
->dev
, (void *)id
->driver_data
, sizeof(*info
),
81 info
->mem
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
82 info
->irq
= platform_get_irq(pdev
, 0);
84 pm_runtime_set_active(&pdev
->dev
);
85 pm_runtime_enable(&pdev
->dev
);
87 return intel_lpss_probe(&pdev
->dev
, info
);
90 static int intel_lpss_acpi_remove(struct platform_device
*pdev
)
92 intel_lpss_remove(&pdev
->dev
);
93 pm_runtime_disable(&pdev
->dev
);
98 static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops
);
100 static struct platform_driver intel_lpss_acpi_driver
= {
101 .probe
= intel_lpss_acpi_probe
,
102 .remove
= intel_lpss_acpi_remove
,
104 .name
= "intel-lpss",
105 .acpi_match_table
= intel_lpss_acpi_ids
,
106 .pm
= &intel_lpss_acpi_pm_ops
,
110 module_platform_driver(intel_lpss_acpi_driver
);
112 MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
113 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
114 MODULE_DESCRIPTION("Intel LPSS ACPI driver");
115 MODULE_LICENSE("GPL v2");