linux-kernel - [PATCH 3.10 098/143] drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

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Message-Id: <1465122046-9645-99-git-send-email-w@1wt.eu>
Date:	Sun,  5 Jun 2016 12:20:01 +0200
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Michael Hennerich <michael.hennerich@...log.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 098/143] drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

From: Michael Hennerich <michael.hennerich@...log.com>

commit f3df53e4d70b5736368a8fe8aa1bb70c1cb1f577 upstream.

Fix RDAC read back errors caused by a typo. Value must shift by 2.

Fixes: a4bd394956f2 ("drivers/misc/ad525x_dpot.c: new features")
Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Willy Tarreau <w@....eu>
---
 drivers/misc/ad525x_dpot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index 8f99e8e..beb7422 100644
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -216,7 +216,7 @@ static s32 dpot_read_i2c(struct dpot_data *dpot, u8 reg)
 			 */
 			value = swab16(value);
 
-			if (dpot->uid == DPOT_UID(AD5271_ID))
+			if (dpot->uid == DPOT_UID(AD5274_ID))
 				value = value >> 2;
 		return value;
 	default:
-- 
2.8.0.rc2.1.gbe9624a