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
73module_platform_driver(int3401_driver);
74
75MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
76MODULE_DESCRIPTION("Processor Thermal Reporting Device Driver");
77MODULE_LICENSE("GPL v2");
78