[PATCH 4.4 134/163] drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

From: Greg Kroah-Hartman
Date: Mon May 02 2016 - 21:32:57 EST


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

------------------

From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/misc/ad525x_dpot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -216,7 +216,7 @@ static s32 dpot_read_i2c(struct dpot_dat
*/
value = swab16(value);

- if (dpot->uid == DPOT_UID(AD5271_ID))
+ if (dpot->uid == DPOT_UID(AD5274_ID))
value = value >> 2;
return value;
default: