LXR linux/include/linux/nvmem-provider.h

   1/*
   2 * nvmem framework provider.
   3 *
   4 * Copyright (C) 2015 Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
   5 * Copyright (C) 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
   6 *
   7 * This file is licensed under the terms of the GNU General Public
   8 * License version 2.  This program is licensed "as is" without any
   9 * warranty of any kind, whether express or implied.
  10 */
  11
  12#ifndef _LINUX_NVMEM_PROVIDER_H
  13#define _LINUX_NVMEM_PROVIDER_H
  14
  15struct nvmem_device;
  16struct nvmem_cell_info;
  17
  18struct nvmem_config {
  19        struct device           *dev;
  20        const char              *name;
  21        int                     id;
  22        struct module           *owner;
  23        const struct nvmem_cell_info    *cells;
  24        int                     ncells;
  25        bool                    read_only;
  26        bool                    root_only;
  27        /* To be only used by old driver/misc/eeprom drivers */
  28        bool                    compat;
  29        struct device           *base_dev;
  30};
  31
  32#if IS_ENABLED(CONFIG_NVMEM)
  33
  34struct nvmem_device *nvmem_register(const struct nvmem_config *cfg);
  35int nvmem_unregister(struct nvmem_device *nvmem);
  36
  37#else
  38
  39static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
  40{
  41        return ERR_PTR(-ENOSYS);
  42}
  43
  44static inline int nvmem_unregister(struct nvmem_device *nvmem)
  45{
  46        return -ENOSYS;
  47}
  48
  49#endif /* CONFIG_NVMEM */
  50#endif  /* ifndef _LINUX_NVMEM_PROVIDER_H */
  51