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nvmem: core: add nvmem_add_one_cell()

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Add a new function to add exactly one cell. This will be used by the
nvmem layout drivers to add custom cells. In contrast to the
nvmem_add_cells(), this has the advantage that we don't have to assemble
a list of cells on runtime.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230206134356.839737-16-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Walle
2023-02-06 13:43:49 +00:00
committed by Greg Kroah-Hartman
parent cc5bdd323d
commit 2ded6830d3
2 changed files with 43 additions and 24 deletions
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8
include/linux/nvmem-provider.h
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@@ -153,6 +153,9 @@ struct nvmem_device *devm_nvmem_register(struct device *dev,
void nvmem_add_cell_table(struct nvmem_cell_table *table);
void nvmem_del_cell_table(struct nvmem_cell_table *table);
int nvmem_add_one_cell(struct nvmem_device *nvmem,
const struct nvmem_cell_info *info);
#else
static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
@@ -170,6 +173,11 @@ devm_nvmem_register(struct device *dev, const struct nvmem_config *c)
static inline void nvmem_add_cell_table(struct nvmem_cell_table *table) {}
static inline void nvmem_del_cell_table(struct nvmem_cell_table *table) {}
static inline int nvmem_add_one_cell(struct nvmem_device *nvmem,
const struct nvmem_cell_info *info)
{
return -EOPNOTSUPP;
}
#endif /* CONFIG_NVMEM */
#endif /* ifndef _LINUX_NVMEM_PROVIDER_H */