This is a note to let you know that I've just added the patch titled
regmap: cache: Make sure to sync the last register in a block
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
regmap-cache-make-sure-to-sync-the-last-register-in-a-block.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2d49b5987561e480bdbd8692b27fc5f49a1e2f0b Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@xxxxxxxxxx>
Date: Mon, 5 Aug 2013 11:21:29 +0200
Subject: regmap: cache: Make sure to sync the last register in a block
From: Lars-Peter Clausen <lars@xxxxxxxxxx>
commit 2d49b5987561e480bdbd8692b27fc5f49a1e2f0b upstream.
regcache_sync_block_raw_flush() expects the address of the register after last
register that needs to be synced as its parameter. But the last call to
regcache_sync_block_raw_flush() in regcache_sync_block_raw() passes the address
of the last register in the block. This effectively always skips over the last
register in a block, even if it needs to be synced. In order to fix it increase
the address by one register.
The issue was introduced in commit 75a5f89 ("regmap: cache: Write consecutive
registers in a single block write").
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/base/regmap/regcache.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -644,7 +644,8 @@ static int regcache_sync_block_raw(struc
}
}
- return regcache_sync_block_raw_flush(map, &data, base, regtmp);
+ return regcache_sync_block_raw_flush(map, &data, base, regtmp +
+ map->reg_stride);
}
int regcache_sync_block(struct regmap *map, void *block,
Patches currently in stable-queue which might be from lars@xxxxxxxxxx are
queue-3.10/regmap-cache-make-sure-to-sync-the-last-register-in-a-block.patch
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