LXR linux/drivers/rtc/nvmem.c

   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 = devm_nvmem_register(dev, nvmem_config);
  25        if (IS_ERR(nvmem))
  26                dev_err(dev, "failed to register nvmem device for RTC\n");
  27
  28        return PTR_ERR_OR_ZERO(nvmem);
  29}
  30EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register);
  31