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From 42e9401bd1467d22c4dc4d2c637347b874e6a80b Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 9 Feb 2017 11:50:24 +0100
Subject: [PATCH] mtd: Add partition device node to mtd partition devices
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
drivers/mtd/mtdpart.c | 1 +
drivers/mtd/ofpart.c | 1 +
include/linux/mtd/partitions.h | 1 +
3 files changed, 3 insertions(+)
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -432,6 +432,7 @@ static struct mtd_part *allocate_partiti
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;
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -108,6 +108,7 @@ static int parse_ofpart_partitions(struc
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)
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -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)
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