drivers/acpi/int340x_thermal.c

   1 /*
   2  * ACPI support for int340x thermal drivers
   3  *
   4  * Copyright (C) 2014, Intel Corporation
   5  * Authors: Zhang Rui <rui.zhang@intel.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/acpi.h>
  13 #include <linux/module.h>
  14
  15 #include "internal.h"
  16
  17 #define INT3401_DEVICE 0X01
  18 static const struct acpi_device_id int340x_thermal_device_ids[] = {
  19         {"INT3400"},
  20         {"INT3401", INT3401_DEVICE},
  21         {"INT3402"},
  22         {"INT3403"},
  23         {"INT3404"},
  24         {"INT3406"},
  25         {"INT3407"},
  26         {"INT3408"},
  27         {"INT3409"},
  28         {"INT340A"},
  29         {"INT340B"},
  30         {""},
  31 };
  32
  33 static int int340x_thermal_handler_attach(struct acpi_device *adev,
  34                                         const struct acpi_device_id *id)
  35 {
  36 #if defined(CONFIG_INT340X_THERMAL) || defined(CONFIG_INT340X_THERMAL_MODULE)
  37         acpi_create_platform_device(adev);
  38 #elif defined(INTEL_SOC_DTS_THERMAL) || defined(INTEL_SOC_DTS_THERMAL_MODULE)
  39         /* Intel SoC DTS thermal driver needs INT3401 to set IRQ descriptor */
  40         if (id->driver_data == INT3401_DEVICE)
  41                 acpi_create_platform_device(adev);
  42 #endif
  43         return 1;
  44 }
  45
  46 static struct acpi_scan_handler int340x_thermal_handler = {
  47         .ids = int340x_thermal_device_ids,
  48         .attach = int340x_thermal_handler_attach,
  49 };
  50
  51 void __init acpi_int340x_thermal_init(void)
  52 {
  53         acpi_scan_add_handler(&int340x_thermal_handler);
  54 }