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[90.86.25.232]) by smtp.gmail.com with ESMTPSA id 72-v6sm6631619wrb.48.2018.09.07.03.08.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 07 Sep 2018 03:08:28 -0700 (PDT) From: Bartosz Golaszewski To: Srinivas Kandagatla , "David S . Miller" , Mauro Carvalho Chehab , Greg Kroah-Hartman , Andrew Morton , Arnd Bergmann , Jonathan Corbet , Sekhar Nori , Kevin Hilman , David Lechner , Boris Brezillon , Andrew Lunn , Alban Bedel , Maxime Ripard , Chen-Yu Tsai Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bartosz Golaszewski Subject: [PATCH v2 08/16] nvmem: provide nvmem_dev_name() Date: Fri, 7 Sep 2018 12:07:42 +0200 Message-Id: <20180907100750.14564-9-brgl@bgdev.pl> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180907100750.14564-1-brgl@bgdev.pl> References: <20180907100750.14564-1-brgl@bgdev.pl> Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org From: Bartosz Golaszewski 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 --- 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) -- 2.18.0