linux/drivers/thermal/khadas_mcu_fan.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Khadas MCU Controlled FAN driver
 *
 * Copyright (C) 2020 BayLibre SAS
 * Author(s): Neil Armstrong <[email protected]>
 */

#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/mfd/khadas-mcu.h>
#include <linux/regmap.h>
#include <linux/sysfs.h>
#include <linux/thermal.h>

#define MAX_LEVEL …

struct khadas_mcu_fan_ctx { … };

static int khadas_mcu_fan_set_level(struct khadas_mcu_fan_ctx *ctx,
				    unsigned int level)
{ … }

static int khadas_mcu_fan_get_max_state(struct thermal_cooling_device *cdev,
					unsigned long *state)
{ … }

static int khadas_mcu_fan_get_cur_state(struct thermal_cooling_device *cdev,
					unsigned long *state)
{ … }

static int
khadas_mcu_fan_set_cur_state(struct thermal_cooling_device *cdev,
			     unsigned long state)
{ … }

static const struct thermal_cooling_device_ops khadas_mcu_fan_cooling_ops = …;

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

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

#ifdef CONFIG_PM_SLEEP
static int khadas_mcu_fan_suspend(struct device *dev)
{ … }

static int khadas_mcu_fan_resume(struct device *dev)
{ … }
#endif

static SIMPLE_DEV_PM_OPS(khadas_mcu_fan_pm, khadas_mcu_fan_suspend,
			 khadas_mcu_fan_resume);

static const struct platform_device_id khadas_mcu_fan_id_table[] = …;
MODULE_DEVICE_TABLE(platform, khadas_mcu_fan_id_table);

static struct platform_driver khadas_mcu_fan_driver = …;

module_platform_driver(…) …;

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