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Subject[PATCH] physmap: Make map_info customizable
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Add a hook to physmap_flash_data for map_info initialization.
This makes platform code can customize map operations.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
---
Background: I wrote this patch to support RBTX4939 board, which
requires custom map->{read,write,copy_from} function. I think
extending the physmap driver is better than adding a new map driver.

drivers/mtd/maps/physmap.c | 5 ++++-
include/linux/mtd/physmap.h | 1 +
2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index dfbf3f2..7ca048d 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -128,7 +128,10 @@ static int physmap_flash_probe(struct platform_device *dev)
goto err_out;
}

- simple_map_init(&info->map[i]);
+ if (physmap_data->map_init)
+ (*physmap_data->map_init)(&info->map[i]);
+ else
+ simple_map_init(&info->map[i]);

probe_type = rom_probe_types;
for (; info->mtd[i] == NULL && *probe_type != NULL; probe_type++)
diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index c8e63a5..bf51a63 100644
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -25,6 +25,7 @@ struct physmap_flash_data {
void (*set_vpp)(struct map_info *, int);
unsigned int nr_parts;
struct mtd_partition *parts;
+ void (*map_init)(struct map_info *map);
};

/*
--
1.5.6.3


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