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drivers: nvmem: Export nvmem_add_cells()

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Not all platforms use device tree. It is useful to be able to add
cells to a NVMEM device from code. Export nvmem_add_cells() so making
this possible.

This required changing the parameters a bit, so that just the cells
and the number of cells are passed, not the whole nvmem config
structure.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrew Lunn
2018-05-11 12:06:56 +01:00
committed by Greg Kroah-Hartman
parent 40fe78a242
commit b3db17e4b8
2 changed files with 28 additions and 7 deletions
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11
include/linux/nvmem-provider.h
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@@ -77,6 +77,9 @@ struct nvmem_device *devm_nvmem_register(struct device *dev,
int devm_nvmem_unregister(struct device *dev, struct nvmem_device *nvmem);
int nvmem_add_cells(struct nvmem_device *nvmem,
const struct nvmem_cell_info *info,
int ncells);
#else
static inline struct nvmem_device *nvmem_register(const struct nvmem_config *c)
@@ -99,6 +102,14 @@ static inline int
devm_nvmem_unregister(struct device *dev, struct nvmem_device *nvmem)
{
return nvmem_unregister(nvmem);
}
static inline int nvmem_add_cells(struct nvmem_device *nvmem,
const struct nvmem_cell_info *info,
int ncells)
{
return -ENOSYS;
}
#endif /* CONFIG_NVMEM */