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Commit d7b9fd16 authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Greg Kroah-Hartman
Browse files

nvmem: provide nvmem_dev_name() 



Kernel users don't have any means of checking the names of nvmem
devices. Add a routine that returns the name of the nvmem provider.

This will be useful for future nvmem notifier subscribers - otherwise
they can't check what device is being added/removed.

Signed-off-by: default avatarBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 96d08fb4

drivers/nvmem/core.c

+13 −0
Original line number Diff line number Diff line
@@ -1343,6 +1343,19 @@ int nvmem_device_write(struct nvmem_device *nvmem, 
}

EXPORT_SYMBOL_GPL(nvmem_device_write);



/**

 * nvmem_dev_name() - Get the name of a given nvmem device.

 *

 * @nvmem: nvmem device.

 *

 * Return: name of the nvmem device.

 */

const char *nvmem_dev_name(struct nvmem_device *nvmem)

{

	return dev_name(&nvmem->dev);

}

EXPORT_SYMBOL_GPL(nvmem_dev_name);



static int __init nvmem_init(void)

{

	return bus_register(&nvmem_bus_type);

include/linux/nvmem-consumer.h

+8 −0
Original line number Diff line number Diff line
@@ -55,6 +55,8 @@ ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem, 
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);



#else



static inline struct nvmem_cell *nvmem_cell_get(struct device *dev,
@@ -143,6 +145,12 @@ static inline int nvmem_device_write(struct nvmem_device *nvmem, 
{

	return -ENOSYS;

}



static inline const char *nvmem_dev_name(struct nvmem_device *nvmem)

{

	return NULL;

}



#endif /* CONFIG_NVMEM */



#if IS_ENABLED(CONFIG_NVMEM) && IS_ENABLED(CONFIG_OF)