[PATCH v2 08/16] nvmem: provide nvmem_dev_name()
From: Bartosz Golaszewski <hidden>
Date: 2018-09-07 10:08:35
Also in:
linux-doc, lkml
Subsystem:
nvmem framework, the rest · Maintainers:
Srinivas Kandagatla, Linus Torvalds
From: Bartosz Golaszewski <redacted> 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 nvmem notifier subscribers - otherwise they can't check what device is being added/removed. Signed-off-by: Bartosz Golaszewski <redacted> --- drivers/nvmem/core.c | 13 +++++++++++++ include/linux/nvmem-consumer.h | 8 ++++++++ 2 files changed, 21 insertions(+)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 89b91f73d08a..364ee16e7d6a 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c@@ -1144,6 +1144,19 @@ 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);
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 7e9fb5a19d91..1313da6731ff 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h@@ -43,6 +43,8 @@ int nvmem_device_read(struct nvmem_device *nvmem, unsigned int offset, int nvmem_device_write(struct nvmem_device *nvmem, unsigned int offset, size_t bytes, void *buf); +const char *nvmem_dev_name(struct nvmem_device *nvmem); + #else static inline struct nvmem_cell *nvmem_cell_get(struct device *dev,
@@ -117,6 +119,12 @@ 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)
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2.18.0