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// SPDX-License-Identifier: GPL-2.0
/*
* thermal-fw.c - Thermal components creation from firmware description
*
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include <linux/fwnode.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/thermal.h>
/**
* thermal_fwnode_cooling_device_register() - register an thermal cooling device
* @np: a pointer to a device tree node.
* @of_index: a cooling device index in the cooling controller
* @type: the thermal cooling device type.
* @devdata: device private data.
* @ops: standard thermal cooling devices callbacks.
*
* This function will register a cooling device with device tree node reference.
* This interface function adds a new thermal cooling device (fan/processor/...)
* to /sys/class/thermal/ folder as cooling_device[0-*]. It tries to bind itself
* to all the thermal zone devices registered at the same time.
*
* Return: a pointer to the created struct thermal_cooling_device or an
* ERR_PTR. Caller must check return value with IS_ERR*() helpers.
*/
struct thermal_cooling_device *
thermal_fwnode_cooling_device_register(struct fwnode_handle *fwnode, int fwn_index,
const char *type, void *devdata,
const struct thermal_cooling_device_ops *ops)
{
struct thermal_cooling_device *cdev;
cdev = __thermal_cooling_device_register(type, devdata, ops);
if (IS_ERR(cdev))
return cdev;
cdev->np = (struct device_node *)fwnode;
cdev->of_index = fwn_index;
thermal_cooling_device_init_complete(cdev);
return cdev;
}
EXPORT_SYMBOL_GPL(thermal_fwnode_cooling_device_register);
static struct thermal_cooling_device *
__devm_thermal_fwnode_cooling_device_register(struct device *dev, struct fwnode_handle *fwnode,
int fwn_index, const char *type, void *devdata,
const struct thermal_cooling_device_ops *ops)
{
struct thermal_cooling_device **ptr, *tcd;
ptr = devres_alloc(thermal_cooling_device_release, sizeof(*ptr),
GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
tcd = thermal_fwnode_cooling_device_register(fwnode, fwn_index, type, devdata, ops);
if (IS_ERR(tcd)) {
devres_free(ptr);
return tcd;
}
*ptr = tcd;
devres_add(dev, ptr);
return tcd;
}
/**
* devm_thermal_fwnode_cooling_device_register() - register a thermal cooling device
* @dev: a valid struct device pointer of a sensor device.
* @fw_index: a cooling device index in the cooling controller
* @type: the thermal cooling device type.
* @devdata: device private data.
* @ops: standard thermal cooling devices callbacks.
*
* This function will register a cooling device with a firmware node reference.
* This interface function adds a new thermal cooling device (fan/processor/...)
* to /sys/class/thermal/ folder as cooling_device[0-*]. It tries to bind itself
* to all the thermal zone devices registered at the same time.
*
* Return: a pointer to the created struct thermal_cooling_device or an
* ERR_PTR. Caller must check return value with IS_ERR*() helpers.
*/
struct thermal_cooling_device *
devm_thermal_fwnode_cooling_device_register(struct device *dev, int fwn_index,
const char *type, void *devdata,
const struct thermal_cooling_device_ops *ops)
{
return __devm_thermal_fwnode_cooling_device_register(dev, dev_fwnode(dev), fwn_index,
type, devdata, ops);
}
EXPORT_SYMBOL_GPL(devm_thermal_fwnode_cooling_device_register);
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