[PATCH 1/3] mtd: core: call devm_of_platform_populate() for MTD devices

Rafał Miłecki zajec5 at gmail.com
Wed Dec 22 11:23:18 PST 2021


From: Rafał Miłecki <rafal at 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 at 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




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