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nvmem: core: Allow allocating several anonymous nvmem devices 

Currently the nvmem core expect the config to provide a name and ID
that are then used to create the device name. When no device name is
given 'nvmem' is used. However if there is several such anonymous
devices they all get named 'nvmem0', which doesn't work.

To fix this problem use the ID from the config only when the config
also provides a name. When no name is provided take the uinque ID of
the nvmem device instead.

Signed-off-by: Aban Bedel <albeu@free.fr>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Aban Bedel 2017-03-31 13:44:46 +01:00 committed by Greg Kroah-Hartman
parent 1b595505bf
commit 5253193d54
1 changed files with 2 additions and 1 deletions
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3
drivers/nvmem/core.c
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@ -468,7 +468,8 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
np = config->dev->of_node;
nvmem->dev.of_node = np;
dev_set_name(&nvmem->dev, "%s%d",
config->name ? : "nvmem", config->id);
config->name ? : "nvmem",
config->name ? config->id : nvmem->id);
nvmem->read_only = of_property_read_bool(np, "read-only") |
config->read_only;