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(dev: &pdev->dev, size: sizeof(*proc_priv), GFP_KERNEL);
27 if (!proc_priv)
28 return -ENOMEM;
29
30 ret = proc_thermal_add(dev: &pdev->dev, priv: proc_priv);
31 if (ret)
32 return ret;
33
34 platform_set_drvdata(pdev, data: proc_priv);
35
36 return ret;
37}
38
39static void int3401_remove(struct platform_device *pdev)
40{
41 proc_thermal_remove(proc_priv: platform_get_drvdata(pdev));
42}
43
44#ifdef CONFIG_PM_SLEEP
45static int int3401_thermal_suspend(struct device *dev)
46{
47 return proc_thermal_suspend(dev);
48}
49static int int3401_thermal_resume(struct device *dev)
50{
51 return proc_thermal_resume(dev);
52}
53#else
54#define int3401_thermal_suspend NULL
55#define int3401_thermal_resume NULL
56#endif
57
58static SIMPLE_DEV_PM_OPS(int3401_proc_thermal_pm, int3401_thermal_suspend,
59 int3401_thermal_resume);
60
61static struct platform_driver int3401_driver = {
62 .probe = int3401_add,
63 .remove_new = int3401_remove,
64 .driver = {
65 .name = "int3401 thermal",
66 .acpi_match_table = int3401_device_ids,
67 .pm = &int3401_proc_thermal_pm,
68 },
69};
70
71module_platform_driver(int3401_driver);
72
73MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
74MODULE_DESCRIPTION("Processor Thermal Reporting Device Driver");
75MODULE_LICENSE("GPL v2");
76

source code of linux/drivers/thermal/intel/int340x_thermal/int3401_thermal.c