/*
   * Intel LPSS ACPI support.
   *
   * Copyright (C) 2015, Intel Corporation
   *
   * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
   *          Mika Westerberg <mika.westerberg@linux.intel.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  
  #include <linux/acpi.h>
  #include <linux/ioport.h>
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/pm.h>
  #include <linux/pm_runtime.h>
  #include <linux/platform_device.h>

  #include <linux/property.h>

  
  #include "intel-lpss.h"
  
  static const struct intel_lpss_platform_info spt_info = {
  	.clk_rate = 120000000,
  };

  static struct property_entry spt_i2c_properties[] = {
  	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
  	{ },
  };

  static const struct intel_lpss_platform_info spt_i2c_info = {
  	.clk_rate = 120000000,

  	.properties = spt_i2c_properties,

  };

  static const struct intel_lpss_platform_info bxt_info = {
  	.clk_rate = 100000000,
  };

  static struct property_entry bxt_i2c_properties[] = {
  	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 42),
  	PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
  	PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208),
  	{ },
  };

  static const struct intel_lpss_platform_info bxt_i2c_info = {
  	.clk_rate = 133000000,

  	.properties = bxt_i2c_properties,

  };

  static const struct acpi_device_id intel_lpss_acpi_ids[] = {
  	/* SPT */

  	{ "INT3446", (kernel_ulong_t)&spt_i2c_info },
  	{ "INT3447", (kernel_ulong_t)&spt_i2c_info },

  	/* BXT */
  	{ "80860AAC", (kernel_ulong_t)&bxt_i2c_info },
  	{ "80860ABC", (kernel_ulong_t)&bxt_info },
  	{ "80860AC2", (kernel_ulong_t)&bxt_info },
  	/* APL */
  	{ "80865AAC", (kernel_ulong_t)&bxt_i2c_info },
  	{ "80865ABC", (kernel_ulong_t)&bxt_info },
  	{ "80865AC2", (kernel_ulong_t)&bxt_info },

  	{ }
  };
  MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids);
  
  static int intel_lpss_acpi_probe(struct platform_device *pdev)
  {
  	struct intel_lpss_platform_info *info;
  	const struct acpi_device_id *id;
  
  	id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev);
  	if (!id)
  		return -ENODEV;
  
  	info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info),
  			    GFP_KERNEL);
  	if (!info)
  		return -ENOMEM;
  
  	info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  	info->irq = platform_get_irq(pdev, 0);
  
  	pm_runtime_set_active(&pdev->dev);
  	pm_runtime_enable(&pdev->dev);
  
  	return intel_lpss_probe(&pdev->dev, info);
  }
  
  static int intel_lpss_acpi_remove(struct platform_device *pdev)
  {
  	intel_lpss_remove(&pdev->dev);
  	pm_runtime_disable(&pdev->dev);
  
  	return 0;
  }
  
  static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops);
  
  static struct platform_driver intel_lpss_acpi_driver = {
  	.probe = intel_lpss_acpi_probe,
  	.remove = intel_lpss_acpi_remove,
  	.driver = {
  		.name = "intel-lpss",
  		.acpi_match_table = intel_lpss_acpi_ids,
  		.pm = &intel_lpss_acpi_pm_ops,
  	},
  };
  
  module_platform_driver(intel_lpss_acpi_driver);
  
  MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
  MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
  MODULE_DESCRIPTION("Intel LPSS ACPI driver");
  MODULE_LICENSE("GPL v2");