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* Patch "regmap: Fix regmap_bulk_read in BE mode" has been added to the 4.1-stable tree
@ 2015-07-17  2:42 gregkh
  0 siblings, 0 replies; only message in thread
From: gregkh @ 2015-07-17  2:42 UTC (permalink / raw)
  To: achandran, broonie, gregkh; +Cc: stable, stable-commits


This is a note to let you know that I've just added the patch titled

    regmap: Fix regmap_bulk_read in BE mode

to the 4.1-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-fix-regmap_bulk_read-in-be-mode.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 15b8d2c41fe5839582029f65c5f7004db451cc2b Mon Sep 17 00:00:00 2001
From: Arun Chandran <achandran@mvista.com>
Date: Mon, 15 Jun 2015 15:59:02 +0530
Subject: regmap: Fix regmap_bulk_read in BE mode

From: Arun Chandran <achandran@mvista.com>

commit 15b8d2c41fe5839582029f65c5f7004db451cc2b upstream.

In big endian mode regmap_bulk_read gives incorrect data
for byte reads.

This is because memcpy of a single byte from an address
after full word read gives different results when
endianness differs. ie. we get little-end in LE and big-end in BE.

Signed-off-by: Arun Chandran <achandran@mvista.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/base/regmap/regmap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2318,7 +2318,7 @@ int regmap_bulk_read(struct regmap *map,
 					  &ival);
 			if (ret != 0)
 				return ret;
-			memcpy(val + (i * val_bytes), &ival, val_bytes);
+			map->format.format_val(val + (i * val_bytes), ival, 0);
 		}
 	}
 


Patches currently in stable-queue which might be from achandran@mvista.com are

queue-4.1/regmap-fix-regmap_bulk_read-in-be-mode.patch

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2015-07-17  2:42 Patch "regmap: Fix regmap_bulk_read in BE mode" has been added to the 4.1-stable tree gregkh

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