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/*
* nvmem framework provider.
*
* Copyright (C) 2015 Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
* Copyright (C) 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#ifndef _LINUX_NVMEM_PROVIDER_H
#define _LINUX_NVMEM_PROVIDER_H
#include <common.h>
#include <linux/types.h>
struct nvmem_device;
/* used for vendor specific post processing of cell data */
typedef int (*nvmem_cell_post_process_t)(void *priv, const char *id,
unsigned int offset, void *buf,
size_t bytes);
struct nvmem_config {
struct device *dev;
const char *name;
bool read_only;
struct cdev *cdev;
int stride;
int word_size;
int size;
int (*reg_write)(void *ctx, unsigned int reg,
const void *val, size_t val_size);
int (*reg_read)(void *ctx, unsigned int reg,
void *val, size_t val_size);
void *priv;
nvmem_cell_post_process_t cell_post_process;
};
struct regmap;
struct cdev;
#if IS_ENABLED(CONFIG_NVMEM)
struct nvmem_device *nvmem_register(const struct nvmem_config *cfg);
struct nvmem_device *nvmem_regmap_register(struct regmap *regmap, const char *name);
struct nvmem_device *nvmem_regmap_register_with_pp(struct regmap *regmap,
const char *name, nvmem_cell_post_process_t cell_post_process);
struct nvmem_device *nvmem_partition_register(struct cdev *cdev);
struct device *nvmem_device_get_device(struct nvmem_device *nvmem);
#else
static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
{
return ERR_PTR(-ENOSYS);
}
static inline struct nvmem_device *nvmem_regmap_register(struct regmap *regmap, const char *name)
{
return ERR_PTR(-ENOSYS);
}
static inline struct nvmem_device *
nvmem_regmap_register_with_pp(struct regmap *regmap, const char *name,
nvmem_cell_post_process_t cell_post_process)
{
return ERR_PTR(-ENOSYS);
}
static inline struct nvmem_device *nvmem_partition_register(struct cdev *cdev)
{
return ERR_PTR(-ENOSYS);
}
static inline struct device *nvmem_device_get_device(struct nvmem_device *nvmem)
{
return ERR_PTR(-ENOSYS);
}
#endif /* CONFIG_NVMEM */
#endif /* ifndef _LINUX_NVMEM_PROVIDER_H */
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