[PATCH 04/28] nvmem: provide nvmem_device_name()
From: Bartosz Golaszewski <hidden>
Date: 2018-08-08 15:37:34
Also in:
linux-arm-kernel, linux-doc, linux-i2c, linux-omap, 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 | 6 ++++++ include/linux/nvmem-consumer.h | 7 +++++++ 2 files changed, 13 insertions(+)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 128c8e51bff2..b040370292a7 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c@@ -1440,6 +1440,12 @@ int nvmem_device_write(struct nvmem_device *nvmem, } EXPORT_SYMBOL_GPL(nvmem_device_write); +const char *nvmem_device_name(struct nvmem_device *nvmem) +{ + return dev_name(&nvmem->dev); +} +EXPORT_SYMBOL_GPL(nvmem_device_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 ae4d30347602..c4000a218f67 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h@@ -69,6 +69,8 @@ int nvmem_device_cell_write(struct nvmem_device *nvmem, int nvmem_register_notifier(struct notifier_block *nb); int nvmem_unregister_notifier(struct notifier_block *nb); + +const char *nvmem_device_name(struct nvmem_device *nvmem); #else static inline struct nvmem_cell *nvmem_cell_get(struct device *dev,
@@ -167,6 +169,11 @@ static inline int int nvmem_unregister_notifier(struct notifier_block *nb) { return -ENOSYS; } + +static inline const char *nvmem_device_name(struct nvmem_device *nvmem) +{ + return ERR_PTR(-ENOSYS); +} #endif /* CONFIG_NVMEM */ #if IS_ENABLED(CONFIG_NVMEM) && IS_ENABLED(CONFIG_OF)
--
2.18.0
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