75 lines
2.4 KiB
Diff
75 lines
2.4 KiB
Diff
From 3b6521eab0386a4854d47b1a01947d7dc46ec98d Mon Sep 17 00:00:00 2001
|
|
From: Brian Norris <computersforpeace@gmail.com>
|
|
Date: Fri, 30 Oct 2015 20:33:21 -0700
|
|
Subject: [PATCH] mtd: ofpart: grab device tree node directly from master
|
|
device node
|
|
|
|
It seems more logical to use a device node directly associated with the
|
|
MTD master device (i.e., mtd->dev.of_node field) rather than requiring
|
|
auxiliary partition parser information to be passed in by the driver in
|
|
a separate struct.
|
|
|
|
This patch supports the mtd->dev.of_node field and deprecates the parser
|
|
data 'of_node' field
|
|
|
|
Driver conversions may now follow.
|
|
|
|
Additional side benefit to assigning mtd->dev.of_node rather than using
|
|
parser data: the driver core will automatically create a device -> node
|
|
symlink for us.
|
|
|
|
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
|
|
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
|
|
---
|
|
drivers/mtd/ofpart.c | 18 ++++++++++--------
|
|
include/linux/mtd/partitions.h | 4 +++-
|
|
2 files changed, 13 insertions(+), 9 deletions(-)
|
|
|
|
--- a/drivers/mtd/ofpart.c
|
|
+++ b/drivers/mtd/ofpart.c
|
|
@@ -37,10 +37,11 @@ static int parse_ofpart_partitions(struc
|
|
bool dedicated = true;
|
|
|
|
|
|
- if (!data)
|
|
- return 0;
|
|
-
|
|
- mtd_node = data->of_node;
|
|
+ /*
|
|
+ * of_node can be provided through auxiliary parser data or (preferred)
|
|
+ * by assigning the master device node
|
|
+ */
|
|
+ mtd_node = data && data->of_node ? data->of_node : mtd_get_of_node(master);
|
|
if (!mtd_node)
|
|
return 0;
|
|
|
|
@@ -157,10 +158,11 @@ static int parse_ofoldpart_partitions(st
|
|
} *part;
|
|
const char *names;
|
|
|
|
- if (!data)
|
|
- return 0;
|
|
-
|
|
- dp = data->of_node;
|
|
+ /*
|
|
+ * of_node can be provided through auxiliary parser data or (preferred)
|
|
+ * by assigning the master device node
|
|
+ */
|
|
+ dp = data && data->of_node ? data->of_node : mtd_get_of_node(master);
|
|
if (!dp)
|
|
return 0;
|
|
|
|
--- a/include/linux/mtd/partitions.h
|
|
+++ b/include/linux/mtd/partitions.h
|
|
@@ -56,7 +56,9 @@ struct device_node;
|
|
/**
|
|
* struct mtd_part_parser_data - used to pass data to MTD partition parsers.
|
|
* @origin: for RedBoot, start address of MTD device
|
|
- * @of_node: for OF parsers, device node containing partitioning information
|
|
+ * @of_node: for OF parsers, device node containing partitioning information.
|
|
+ * This field is deprecated, as the device node should simply be
|
|
+ * assigned to the master struct device.
|
|
*/
|
|
struct mtd_part_parser_data {
|
|
unsigned long origin;
|