| Andy Shevchenko | 4b45efe | 2015-07-27 18:04:03 +0300 | [diff] [blame^] | 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 | |
| 28 | static 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 | }; |
| 34 | MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids); |
| 35 | |
| 36 | static 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 | |
| 59 | static 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 | |
| 67 | static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops); |
| 68 | |
| 69 | static 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 | |
| 79 | module_platform_driver(intel_lpss_acpi_driver); |
| 80 | |
| 81 | MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); |
| 82 | MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>"); |
| 83 | MODULE_DESCRIPTION("Intel LPSS ACPI driver"); |
| 84 | MODULE_LICENSE("GPL v2"); |