linux-kernel - [PATCH 3.12 19/76] drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

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Date:	Thu, 19 May 2016 11:07:41 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Michael Hennerich <michael.hennerich@...log.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 19/76] drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

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

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

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: Jiri Slaby <jslaby@...e.cz>
---
 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 0daadcf1ed7a..65fb74402c37 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:
-- 
2.8.2