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mtd: Add partition device node to mtd partition devices

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The user visible change here is that mtd partitions get an of_node link
in sysfs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Sascha Hauer 2017-02-09 11:50:24 +01:00 committed by Brian Norris
parent 89a0d9a9f1
commit 42e9401bd1
3 changed files with 3 additions and 0 deletions
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1
drivers/mtd/mtdpart.c
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@ -432,6 +432,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) ?
&master->dev :
master->dev.parent;
slave->mtd.dev.of_node = part->of_node;
slave->mtd._read = part_read;
slave->mtd._write = part_write;

1
drivers/mtd/ofpart.c
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@ -108,6 +108,7 @@ static int parse_ofpart_partitions(struct mtd_info *master,
parts[i].offset = of_read_number(reg, a_cells);
parts[i].size = of_read_number(reg + a_cells, s_cells);
parts[i].of_node = pp;
partname = of_get_property(pp, "label", &len);
if (!partname)

1
include/linux/mtd/partitions.h
View File

@ -41,6 +41,7 @@ struct mtd_partition {
uint64_t size; /* partition size */
uint64_t offset; /* offset within the master MTD space */
uint32_t mask_flags; /* master MTD flags to mask out for this partition */
struct device_node *of_node;
};
#define MTDPART_OFS_RETAIN (-3)