From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
"David S . Miller" <davem@davemloft.net>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>,
Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>,
David Lechner <david@lechnology.com>,
Boris Brezillon <boris.brezillon@bootlin.com>,
Andrew Lunn <andrew@lunn.ch>, Alban Bedel <albeu@free.fr>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>
Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH v4 01/22] nvmem: provide nvmem_dev_name()
Date: Fri, 14 Sep 2018 16:39:50 +0200 [thread overview]
Message-ID: <20180914144011.27614-2-brgl@bgdev.pl> (raw)
In-Reply-To: <20180914144011.27614-1-brgl@bgdev.pl>
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
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 aa1657831b70..d96348ae0f37 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -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);
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 4e85447f7860..0389fe00b177 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -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)
--
2.18.0
next prev parent reply other threads:[~2018-09-14 14:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 14:39 [PATCH v4 00/22] nvmem: rework of the subsystem for non-DT users Bartosz Golaszewski
2018-09-14 14:39 ` Bartosz Golaszewski [this message]
2018-09-14 14:39 ` [PATCH v4 02/22] nvmem: remove the name field from struct nvmem_device Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 03/22] nvmem: use list_for_each_entry_safe in nvmem_device_remove_all_cells() Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 04/22] nvmem: remove a stray newline Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 05/22] nvmem: check the return value of nvmem_add_cells() Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 06/22] nvmem: use kref Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 07/22] nvmem: sunxi_sid: return -ENOMEM if kzalloc() fails Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 08/22] nvmem: sunxi_sid: use devm_nvmem_register() Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 09/22] nvmem: lpc18xx_eeprom: " Bartosz Golaszewski
2018-09-14 14:39 ` [PATCH v4 10/22] nvmem: mxs-ocotp: " Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 11/22] nvmem: change the signature of nvmem_unregister() Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 12/22] nvmem: remove the global cell list Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 13/22] nvmem: add support for cell info Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 14/22] nvmem: resolve cells from DT at registration time Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 15/22] nvmem: add support for cell lookups from machine code Bartosz Golaszewski
2018-09-21 1:12 ` Srinivas Kandagatla
2018-09-14 14:40 ` [PATCH v4 16/22] Documentation: nvmem: document cell tables and lookup entries Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 17/22] nvmem: add a notifier chain Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 18/22] nvmem: use SPDX license identifiers Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 19/22] nvmem: make the naming of arguments in nvmem_cell_get() consistent Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 20/22] nvmem: use EOPNOTSUPP instead of ENOSYS Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 21/22] nvmem: fix commenting style Bartosz Golaszewski
2018-09-14 14:40 ` [PATCH v4 22/22] nvmem: use octal permissions instead of constants Bartosz Golaszewski
2018-09-16 14:08 ` [PATCH v4 00/22] nvmem: rework of the subsystem for non-DT users Srinivas Kandagatla
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