From: Heiner Kallweit <hkallweit1@gmail.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: "linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"open list:ARM/Amlogic Meson..."
<linux-amlogic@lists.infradead.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 1/2] mmc: core: add devm_mmc_alloc_host
Date: Sat, 4 Feb 2023 00:53:35 +0100 [thread overview]
Message-ID: <6d8f9fdc-7c9e-8e4f-e6ef-5470b971c74e@gmail.com> (raw)
In-Reply-To: <e7880df5-43ab-d6b5-0ac3-440adfb12808@gmail.com>
Add a device-managed version of mmc_alloc_host().
The argument order is reversed compared to mmc_alloc_host() because
device-managed functions typically have the device argument first.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/mmc/core/host.c | 26 ++++++++++++++++++++++++++
include/linux/mmc/host.h | 1 +
2 files changed, 27 insertions(+)
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index d17eda753..6a7475ad7 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -588,6 +588,32 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
EXPORT_SYMBOL(mmc_alloc_host);
+static void devm_mmc_host_release(struct device *dev, void *res)
+{
+ mmc_free_host(*(struct mmc_host **)res);
+}
+
+struct mmc_host *devm_mmc_alloc_host(struct device *dev, int extra)
+{
+ struct mmc_host **dr, *host;
+
+ dr = devres_alloc(devm_mmc_host_release, sizeof(*dr), GFP_KERNEL);
+ if (!dr)
+ return ERR_PTR(-ENOMEM);
+
+ host = mmc_alloc_host(extra, dev);
+ if (IS_ERR(host)) {
+ devres_free(dr);
+ return host;
+ }
+
+ *dr = host;
+ devres_add(dev, dr);
+
+ return host;
+}
+EXPORT_SYMBOL(devm_mmc_alloc_host);
+
static int mmc_validate_host_caps(struct mmc_host *host)
{
struct device *dev = host->parent;
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 8fdd3cf97..812e6b583 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -527,6 +527,7 @@ struct mmc_host {
struct device_node;
struct mmc_host *mmc_alloc_host(int extra, struct device *);
+struct mmc_host *devm_mmc_alloc_host(struct device *dev, int extra);
int mmc_add_host(struct mmc_host *);
void mmc_remove_host(struct mmc_host *);
void mmc_free_host(struct mmc_host *);
--
2.39.1
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
next prev parent reply other threads:[~2023-02-03 23:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-03 23:50 [PATCH 0/2] mmc: add and use devm_mmc_alloc_host Heiner Kallweit
2023-02-03 23:53 ` Heiner Kallweit [this message]
2023-02-03 23:54 ` [PATCH 2/2] mmc: meson-gx: " Heiner Kallweit
2023-02-13 23:47 ` [PATCH 0/2] mmc: add and " Ulf Hansson
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=6d8f9fdc-7c9e-8e4f-e6ef-5470b971c74e@gmail.com \
--to=hkallweit1@gmail.com \
--cc=jbrunet@baylibre.com \
--cc=khilman@baylibre.com \
--cc=linux-amlogic@lists.infradead.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-mmc@vger.kernel.org \
--cc=martin.blumenstingl@googlemail.com \
--cc=neil.armstrong@linaro.org \
--cc=ulf.hansson@linaro.org \
/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