From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 22 Feb 2016 09:20:24 +0000 (+0100)
Subject: drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors
X-Git-Tag: v3.16.35~157
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1355472bf466c15303667b4ff7b5324efe1037b7;p=thirdparty%2Fkernel%2Fstable.git

drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

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@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index a43053daad0ec..46272b0ae2dd4 100644
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -215,7 +215,7 @@ 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: