Linux-Devicetree Archive mirror
 help / color / mirror / Atom feed
From: "Rafał Miłecki" <zajec5@gmail.com>
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mtd@lists.infradead.org, "Rafał Miłecki" <rafal@milecki.pl>
Subject: [PATCH 1/3] mtd: core: call devm_of_platform_populate() for MTD devices
Date: Wed, 22 Dec 2021 20:23:18 +0100	[thread overview]
Message-ID: <20211222192320.21974-1-zajec5@gmail.com> (raw)

From: Rafał Miłecki <rafal@milecki.pl>

This adds support for bindings present in MTD devices (applies to
partitions too) nodes. The purpose of this change is to allow drivers
handle MTD device (partition) data. Some partitions may contain info
that requires parsing & processing.

An example can be U-Boot partition that contains block with environment
variables somehwere in a middle. That block should be described in DT
and parsed by a specific driver.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 drivers/mtd/mtdcore.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 70f492dce158..07b75e6ca111 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -19,6 +19,7 @@
 #include <linux/ioctl.h>
 #include <linux/init.h>
 #include <linux/of.h>
+#include <linux/of_platform.h>
 #include <linux/proc_fs.h>
 #include <linux/idr.h>
 #include <linux/backing-dev.h>
@@ -690,6 +691,9 @@ int add_mtd_device(struct mtd_info *mtd)
 		not->add(mtd);
 
 	mutex_unlock(&mtd_table_mutex);
+
+	devm_of_platform_populate(&mtd->dev);
+
 	/* We _know_ we aren't being removed, because
 	   our caller is still holding us here. So none
 	   of this try_ nonsense, and no bitching about it
-- 
2.31.1


             reply	other threads:[~2021-12-22 19:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-22 19:23 Rafał Miłecki [this message]
2021-12-22 19:23 ` [PATCH 2/3] dt-bindings: nvmem: add U-Boot environment variables binding Rafał Miłecki
2021-12-23 16:24   ` Pratyush Yadav
2021-12-22 19:23 ` [PATCH 3/3] nvmem: add driver handling U-Boot environment variables Rafał Miłecki
2021-12-27  5:13   ` kernel test robot

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=20211222192320.21974-1-zajec5@gmail.com \
    --to=zajec5@gmail.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=miquel.raynal@bootlin.com \
    --cc=rafal@milecki.pl \
    --cc=richard@nod.at \
    --cc=robh+dt@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 read-only IMAP folder(s) and NNTP newsgroup(s).