LXR linux/drivers/thermal/intel/int340x_thermal/int3401

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * INT3401 processor thermal device
   4 * Copyright (c) 2020, Intel Corporation.
   5 */
   6#include <linux/acpi.h>
   7#include <linux/kernel.h>
   8#include <linux/module.h>
   9#include <linux/platform_device.h>
  10#include <linux/thermal.h>
  11
  12#include "int340x_thermal_zone.h"
  13#include "processor_thermal_device.h"
  14
  15static const struct acpi_device_id int3401_device_ids[] = {
  16        {"INT3401", 0},
  17        {"", 0},
  18};
  19MODULE_DEVICE_TABLE(acpi, int3401_device_ids);
  20
  21static int int3401_add(struct platform_device *pdev)
  22{
  23        struct proc_thermal_device *proc_priv;
  24        int ret;
  25
  26        proc_priv = devm_kzalloc(&pdev->dev, sizeof(*proc_priv), GFP_KERNEL);
  27        if (!proc_priv)
  28                return -ENOMEM;
  29
  30        ret = proc_thermal_add(&pdev->dev, proc_priv);
  31        if (ret)
  32                return ret;
  33
  34        platform_set_drvdata(pdev, proc_priv);
  35
  36        return ret;
  37}
  38
  39static int int3401_remove(struct platform_device *pdev)
  40{
  41        proc_thermal_remove(platform_get_drvdata(pdev));
  42
  43        return 0;
  44}
  45
  46#ifdef CONFIG_PM_SLEEP
  47static int int3401_thermal_suspend(struct device *dev)
  48{
  49        return proc_thermal_suspend(dev);
  50}
  51static int int3401_thermal_resume(struct device *dev)
  52{
  53        return proc_thermal_resume(dev);
  54}
  55#else
  56#define int3401_thermal_suspend NULL
  57#define int3401_thermal_resume NULL
  58#endif
  59
  60static SIMPLE_DEV_PM_OPS(int3401_proc_thermal_pm, int3401_thermal_suspend,
  61                         int3401_thermal_resume);
  62
  63static struct platform_driver int3401_driver = {
  64        .probe = int3401_add,
  65        .remove = int3401_remove,
  66        .driver = {
  67                .name = "int3401 thermal",
  68                .acpi_match_table = int3401_device_ids,
  69                .pm = &int3401_proc_thermal_pm,
  70        },
  71};
  72
  73static int __init proc_thermal_init(void)
  74{
  75        return platform_driver_register(&int3401_driver);
  76}
  77
  78static void __exit proc_thermal_exit(void)
  79{
  80        platform_driver_unregister(&int3401_driver);
  81}
  82
  83module_init(proc_thermal_init);
  84module_exit(proc_thermal_exit);
  85
  86MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
  87MODULE_DESCRIPTION("Processor Thermal Reporting Device Driver");
  88MODULE_LICENSE("GPL v2");
  89