[3.13.y.z extended stable] Patch "ASoC: adau1701: fix adau1701_reg_read()" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    ASoC: adau1701: fix adau1701_reg_read()

to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11.7.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 4fe6e4bb031a4f5dfdec80df5e8097a2a3813620 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque at gmail.com>
Date: Thu, 3 Jul 2014 16:51:36 +0200
Subject: ASoC: adau1701: fix adau1701_reg_read()

commit 3ad80b828b2533f37c221e2df155774efd6ed814 upstream.

Fix a long standing bug in the read register routing of adau1701.
The bytes arrive in the buffer in big-endian, so the result has to be
shifted before and-ing the bytes in the loop.

Signed-off-by: Daniel Mack <zonque at gmail.com>
Acked-by: Lars-Peter Clausen <lars at metafoo.de>
Signed-off-by: Mark Brown <broonie at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 sound/soc/codecs/adau1701.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index adee866..56bfc67 100644
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -230,8 +230,10 @@ static int adau1701_reg_read(void *context, unsigned int reg,

 	*value = 0;

-	for (i = 0; i < size; i++)
-		*value |= recv_buf[i] << (i * 8);
+	for (i = 0; i < size; i++) {
+		*value <<= 8;
+		*value |= recv_buf[i];
+	}

 	return 0;
 }
--
1.9.1