1// SPDX-License-Identifier: GPL-2.0
2/*
3 * RTC subsystem, nvmem interface
4 *
5 * Copyright (C) 2017 Alexandre Belloni
6 */
7
8#include <linux/err.h>
9#include <linux/types.h>
10#include <linux/nvmem-consumer.h>
11#include <linux/rtc.h>
12
13int devm_rtc_nvmem_register(struct rtc_device *rtc,
14 struct nvmem_config *nvmem_config)
15{
16 struct device *dev = rtc->dev.parent;
17 struct nvmem_device *nvmem;
18
19 if (!nvmem_config)
20 return -ENODEV;
21
22 nvmem_config->dev = dev;
23 nvmem_config->owner = rtc->owner;
24 nvmem_config->add_legacy_fixed_of_cells = true;
25 nvmem = devm_nvmem_register(dev, cfg: nvmem_config);
26 if (IS_ERR(ptr: nvmem))
27 dev_err(dev, "failed to register nvmem device for RTC\n");
28
29 return PTR_ERR_OR_ZERO(ptr: nvmem);
30}
31EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register);
32