[PATCH 3.2 018/115] drivers/misc/ad525x_dpot: AD5274 fix RDAC read back errors

From: Ben Hutchings
Date: Tue Apr 26 2016 - 20:46:48 EST


3.2.80-rc1 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>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
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
@@ -218,7 +218,7 @@ 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: