linux/drivers/hwmon/via-cputemp.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * via-cputemp.c - Driver for VIA CPU core temperature monitoring
 * Copyright (C) 2009 VIA Technologies, Inc.
 *
 * based on existing coretemp.c, which is
 *
 * Copyright (C) 2007 Rudolf Marek <[email protected]>
 */

#define pr_fmt(fmt) …

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/hwmon.h>
#include <linux/hwmon-vid.h>
#include <linux/sysfs.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/platform_device.h>
#include <linux/cpu.h>
#include <asm/msr.h>
#include <asm/processor.h>
#include <asm/cpu_device_id.h>

#define DRVNAME …

enum { … };

/*
 * Functions declaration
 */

struct via_cputemp_data { … };

/*
 * Sysfs stuff
 */

static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
			 char *buf)
{ … }

static ssize_t temp_show(struct device *dev, struct device_attribute *devattr,
			 char *buf)
{ … }

static ssize_t cpu0_vid_show(struct device *dev,
			     struct device_attribute *devattr, char *buf)
{ … }

static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, SHOW_TEMP);
static SENSOR_DEVICE_ATTR_RO(temp1_label, name, SHOW_LABEL);
static SENSOR_DEVICE_ATTR_RO(name, name, SHOW_NAME);

static struct attribute *via_cputemp_attributes[] = …;

static const struct attribute_group via_cputemp_group = …;

/* Optional attributes */
static DEVICE_ATTR_RO(cpu0_vid);

static int via_cputemp_probe(struct platform_device *pdev)
{ … }

static void via_cputemp_remove(struct platform_device *pdev)
{ … }

static struct platform_driver via_cputemp_driver = …;

struct pdev_entry { … };

static LIST_HEAD(pdev_list);
static DEFINE_MUTEX(pdev_list_mutex);

static int via_cputemp_online(unsigned int cpu)
{ … }

static int via_cputemp_down_prep(unsigned int cpu)
{ … }

static const struct x86_cpu_id __initconst cputemp_ids[] = …;
MODULE_DEVICE_TABLE(x86cpu, cputemp_ids);

static enum cpuhp_state via_temp_online;

static int __init via_cputemp_init(void)
{ … }

static void __exit via_cputemp_exit(void)
{ … }

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;

module_init(…) …
module_exit(…)