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1// SPDX-License-Identifier: GPL-2.02/*3 * RTC subsystem, nvmem interface4 *5 * Copyright (C) 2017 Alexandre Belloni6 */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, nvmem_config);26 if (IS_ERR(nvmem))27 dev_err(dev, "failed to register nvmem device for RTC\n");28 29 return PTR_ERR_OR_ZERO(nvmem);30}31EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register);32