diff options
| author | Rafał Miłecki <rafal@milecki.pl> | 2023-12-21 18:34:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-04 17:01:13 +0100 |
| commit | 33cf42e68efc8ff529a7eee08a4f0ba8c8d0a207 (patch) | |
| tree | ab6de4481b3080c1e5db3a4a51182e6738126ff6 | |
| parent | 43f60e3fb62edc7bd8891de8779fb422f4ae23ae (diff) | |
nvmem: core: add nvmem_dev_size() helper
This is required by layouts that need to read whole NVMEM content. It's
especially useful for NVMEM devices without hardcoded layout (like
U-Boot environment data block).
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20231221173421.13737-2-zajec5@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/nvmem/core.c | 13 | ||||
| -rw-r--r-- | include/linux/nvmem-consumer.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 4ed54076346d..980123fb4dde 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -2163,6 +2163,19 @@ const char *nvmem_dev_name(struct nvmem_device *nvmem) } EXPORT_SYMBOL_GPL(nvmem_dev_name); +/** + * nvmem_dev_size() - Get the size of a given nvmem device. + * + * @nvmem: nvmem device. + * + * Return: size of the nvmem device. + */ +size_t nvmem_dev_size(struct nvmem_device *nvmem) +{ + return nvmem->size; +} +EXPORT_SYMBOL_GPL(nvmem_dev_size); + static int __init nvmem_init(void) { int ret; diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h index 2d306fa13b1a..34c0e58dfa26 100644 --- a/include/linux/nvmem-consumer.h +++ b/include/linux/nvmem-consumer.h @@ -81,6 +81,7 @@ int nvmem_device_cell_write(struct nvmem_device *nvmem, struct nvmem_cell_info *info, void *buf); const char *nvmem_dev_name(struct nvmem_device *nvmem); +size_t nvmem_dev_size(struct nvmem_device *nvmem); void nvmem_add_cell_lookups(struct nvmem_cell_lookup *entries, size_t nentries); |