67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* ifpmic_class.c
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*
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* Copyright (C) 2021 Samsung Electronics Co.Ltd
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*
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* IFPMIC Class Driver
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*
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*/
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/power/ifpmic_class.h>
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#include <linux/module.h>
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/* CAUTION : Do not be declared as external ifpmic_class */
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static struct class *ifpmic_class;
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static atomic_t ifpmic_dev;
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struct device *ifpmic_device_create(void *drvdata, const char *fmt)
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{
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struct device *dev;
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if (!ifpmic_class) {
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pr_err("Not yet created class(ifpmic)!\n");
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WARN_ON(0);
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}
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if (IS_ERR(ifpmic_class)) {
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pr_err("Failed to create class(ifpmic) %ld\n", PTR_ERR(ifpmic_class));
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WARN_ON(0);
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}
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dev = device_create(ifpmic_class, NULL, atomic_inc_return(&ifpmic_dev), drvdata, "%s", fmt);
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if (IS_ERR(dev))
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pr_err("Failed to create device %s %ld\n", fmt, PTR_ERR(dev));
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else
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pr_debug("%s : %s : %d\n", __func__, fmt, dev->devt);
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return dev;
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}
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EXPORT_SYMBOL_GPL(ifpmic_device_create);
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void ifpmic_device_destroy(dev_t devt)
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{
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pr_info("%s : %d\n", __func__, devt);
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device_destroy(ifpmic_class, devt);
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}
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EXPORT_SYMBOL_GPL(ifpmic_device_destroy);
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static int __init ifpmic_class_create(void)
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{
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ifpmic_class = class_create(THIS_MODULE, "ifpmic");
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if (IS_ERR(ifpmic_class)) {
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pr_err("Failed to create class(ifpmic) %ld\n", PTR_ERR(ifpmic_class));
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return PTR_ERR(ifpmic_class);
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}
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return 0;
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}
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arch_initcall(ifpmic_class_create);
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MODULE_DESCRIPTION("ifpmic sysfs");
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MODULE_AUTHOR("Samsung Electronics");
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MODULE_LICENSE("GPL");
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