From: Michael Walle <michael@walle.cc>
To: "Miquel Raynal" <miquel.raynal@bootlin.com>,
"Richard Weinberger" <richard@nod.at>,
"Vignesh Raghavendra" <vigneshr@ti.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Srinivas Kandagatla" <srinivas.kandagatla@linaro.org>,
"Shawn Guo" <shawnguo@kernel.org>, "Li Yang" <leoyang.li@nxp.com>,
"Rafał Miłecki" <rafal@milecki.pl>,
"Frank Rowand" <frowand.list@gmail.com>
Cc: linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Ahmad Fatoum <a.fatoum@pengutronix.de>,
Philipp Zabel <p.zabel@pengutronix.de>,
Michael Walle <michael@walle.cc>
Subject: [PATCH v2 17/20] nvmem: core: export nvmem device size
Date: Fri, 2 Sep 2022 00:18:54 +0200 [thread overview]
Message-ID: <20220901221857.2600340-18-michael@walle.cc> (raw)
In-Reply-To: <20220901221857.2600340-1-michael@walle.cc>
Export the size of the nvmem device. NVMEM layout drivers might need it
and might not have access to the device which is registering the NVMEM
device.
Signed-off-by: Michael Walle <michael@walle.cc>
---
changes since v1:
- none
drivers/nvmem/core.c | 13 +++++++++++++
include/linux/nvmem-consumer.h | 6 ++++++
2 files changed, 19 insertions(+)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 6910796937f9..81fca32a7418 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -2045,6 +2045,19 @@ const char *nvmem_dev_name(struct nvmem_device *nvmem)
}
EXPORT_SYMBOL_GPL(nvmem_dev_name);
+/**
+ * nvmem_device_size() - Get the size of a given nvmem device.
+ *
+ * @nvmem: nvmem device.
+ *
+ * Return: size of the nvmem device.
+ */
+size_t nvmem_device_size(struct nvmem_device *nvmem)
+{
+ return nvmem->size;
+}
+EXPORT_SYMBOL_GPL(nvmem_device_size);
+
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 1f62f7ba71ca..6607f9a1d6dc 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -77,6 +77,7 @@ ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem,
struct nvmem_cell_info *info, void *buf);
int nvmem_device_cell_write(struct nvmem_device *nvmem,
struct nvmem_cell_info *info, void *buf);
+size_t nvmem_device_size(struct nvmem_device *nvmem);
const char *nvmem_dev_name(struct nvmem_device *nvmem);
@@ -206,6 +207,11 @@ static inline int nvmem_device_write(struct nvmem_device *nvmem,
return -EOPNOTSUPP;
}
+static inline size_t nvmem_device_size(struct nvmem_device *nvmem)
+{
+ return 0;
+}
+
static inline const char *nvmem_dev_name(struct nvmem_device *nvmem)
{
return NULL;
--
2.30.2
_______________________________________________
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:[~2022-09-01 22:32 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-01 22:18 [PATCH v2 00/20] nvmem: core: introduce NVMEM layouts Michael Walle
2022-09-01 22:18 ` [PATCH v2 01/20] net: add helper eth_addr_add() Michael Walle
2022-09-01 23:22 ` Randy Dunlap
2022-09-02 7:27 ` Michael Walle
2022-09-01 22:18 ` [PATCH v2 02/20] of: base: add of_parse_phandle_with_optional_args() Michael Walle
2022-09-01 22:18 ` [PATCH v2 03/20] nvmem: core: add an index parameter to the cell Michael Walle
2022-09-09 8:12 ` Srinivas Kandagatla
2022-09-01 22:18 ` [PATCH v2 04/20] nvmem: core: move struct nvmem_cell_info to nvmem-provider.h Michael Walle
2022-09-01 22:18 ` [PATCH v2 05/20] nvmem: core: drop the removal of the cells in nvmem_add_cells() Michael Walle
2022-09-01 22:18 ` [PATCH v2 06/20] nvmem: core: add nvmem_add_one_cell() Michael Walle
2022-09-09 8:52 ` Srinivas Kandagatla
2022-09-01 22:18 ` [PATCH v2 07/20] nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of() Michael Walle
2022-09-01 22:18 ` [PATCH v2 08/20] nvmem: core: introduce NVMEM layouts Michael Walle
2022-09-01 22:18 ` [PATCH v2 09/20] nvmem: core: add per-cell post processing Michael Walle
2022-09-01 22:18 ` [PATCH v2 10/20] nvmem: core: allow to modify a cell before adding it Michael Walle
2022-09-01 22:18 ` [PATCH v2 11/20] nvmem: imx-ocotp: replace global post processing with layouts Michael Walle
2022-09-07 12:31 ` Michael Walle
2022-09-01 22:18 ` [PATCH v2 12/20] nvmem: cell: drop global cell_post_process Michael Walle
2022-09-01 22:18 ` [PATCH v2 13/20] nvmem: core: drop priv pointer in post process callback Michael Walle
2022-09-09 8:52 ` Srinivas Kandagatla
2022-09-09 8:58 ` Michael Walle
2022-09-09 9:08 ` Srinivas Kandagatla
2022-09-09 9:39 ` Michael Walle
2022-09-01 22:18 ` [PATCH v2 14/20] dt-bindings: mtd: relax the nvmem compatible string Michael Walle
2022-09-08 12:21 ` Krzysztof Kozlowski
2022-09-01 22:18 ` [PATCH v2 15/20] dt-bindings: nvmem: add YAML schema for the sl28 vpd layout Michael Walle
2022-09-08 12:22 ` Krzysztof Kozlowski
2022-09-12 19:20 ` Rob Herring
2022-09-13 14:21 ` Michael Walle
2022-09-22 9:22 ` Miquel Raynal
2022-09-01 22:18 ` [PATCH v2 16/20] nvmem: layouts: add sl28vpd layout Michael Walle
2022-09-01 22:18 ` Michael Walle [this message]
2022-09-01 22:18 ` [PATCH v2 18/20] arm64: dts: ls1028a: sl28: get MAC addresses from VPD Michael Walle
2022-09-01 22:18 ` [RFC PATCH v2 19/20] nvmem: layouts: rewrite the u-boot-env driver as a NVMEM layout Michael Walle
2022-09-21 10:37 ` Miquel Raynal
2022-09-01 22:18 ` [RFC PATCH v2 20/20] nvmem: layouts: u-boot-env: add device node Michael Walle
2022-09-21 9:58 ` [PATCH v2 00/20] nvmem: core: introduce NVMEM layouts Miquel Raynal
2022-09-22 21:22 ` Srinivas Kandagatla
2022-09-23 8:31 ` Miquel Raynal
2022-09-23 15:47 ` Miquel Raynal
2022-09-23 17:28 ` Michael Walle
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=20220901221857.2600340-18-michael@walle.cc \
--to=michael@walle.cc \
--cc=a.fatoum@pengutronix.de \
--cc=devicetree@vger.kernel.org \
--cc=frowand.list@gmail.com \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=leoyang.li@nxp.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=miquel.raynal@bootlin.com \
--cc=p.zabel@pengutronix.de \
--cc=rafal@milecki.pl \
--cc=richard@nod.at \
--cc=robh+dt@kernel.org \
--cc=shawnguo@kernel.org \
--cc=srinivas.kandagatla@linaro.org \
--cc=vigneshr@ti.com \
/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).