From: "Rafał Miłecki" <zajec5@gmail.com>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Michael Walle" <michael@walle.cc>,
"Miquel Raynal" <miquel.raynal@bootlin.com>,
linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, u-boot@lists.denx.de,
"Rafał Miłecki" <rafal@milecki.pl>
Subject: [PATCH 2/4] nvmem: core: add nvmem_dev_size() helper
Date: Mon, 18 Dec 2023 14:37:20 +0100 [thread overview]
Message-ID: <20231218133722.16150-2-zajec5@gmail.com> (raw)
In-Reply-To: <20231218133722.16150-1-zajec5@gmail.com>
From: Rafał Miłecki <rafal@milecki.pl>
This is required by layouts that need to read whole NVMEM content. It's
especially useful for NVMEM devices without hardcoded layout (like
U-Boot environment data block).
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
drivers/nvmem/core.c | 13 +++++++++++++
include/linux/nvmem-consumer.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index ba559e81f77f..1b08bb072f86 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -2176,6 +2176,19 @@ const char *nvmem_dev_name(struct nvmem_device *nvmem)
}
EXPORT_SYMBOL_GPL(nvmem_dev_name);
+/**
+ * nvmem_dev_size() - Get the size of a given nvmem device.
+ *
+ * @nvmem: nvmem device.
+ *
+ * Return: size of the nvmem device.
+ */
+size_t nvmem_dev_size(struct nvmem_device *nvmem)
+{
+ return nvmem->size;
+}
+EXPORT_SYMBOL_GPL(nvmem_dev_size);
+
static int __init nvmem_init(void)
{
int ret;
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 2d306fa13b1a..34c0e58dfa26 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -81,6 +81,7 @@ 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);
+size_t nvmem_dev_size(struct nvmem_device *nvmem);
void nvmem_add_cell_lookups(struct nvmem_cell_lookup *entries,
size_t nentries);
--
2.35.3
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-12-18 13:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-18 13:37 [PATCH 1/4] dt-bindings: nvmem: layouts: add U-Boot environment variables layout Rafał Miłecki
2023-12-18 13:37 ` Rafał Miłecki [this message]
2023-12-18 14:03 ` [PATCH 2/4] nvmem: core: add nvmem_dev_size() helper Miquel Raynal
2023-12-18 13:37 ` [PATCH 3/4] nvmem: u-boot-env: use more nvmem subsystem helpers Rafał Miłecki
2023-12-18 14:02 ` Miquel Raynal
2023-12-18 13:37 ` [PATCH 4/4] nvmem: layouts: add U-Boot env layout Rafał Miłecki
2023-12-18 14:21 ` Miquel Raynal
2023-12-18 22:10 ` Rafał Miłecki
2023-12-19 7:55 ` Miquel Raynal
2023-12-19 9:55 ` Rafał Miłecki
2023-12-19 10:10 ` Rafał Miłecki
2023-12-18 14:48 ` [PATCH 1/4] dt-bindings: nvmem: layouts: add U-Boot environment variables layout Rob Herring
2023-12-18 22:13 ` Rafał Miłecki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231218133722.16150-2-zajec5@gmail.com \
--to=zajec5@gmail.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=michael@walle.cc \
--cc=miquel.raynal@bootlin.com \
--cc=rafal@milecki.pl \
--cc=robh+dt@kernel.org \
--cc=srinivas.kandagatla@linaro.org \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).