regulator: wm831x: Set the new rather than old value for DVS VSEL

commit 13ae633cf729b0ecb677b75b04886ff8fada8fad upstream.

Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index ff810e7..97bb31d 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -330,7 +330,7 @@
 	if (vsel > dcdc->dvs_vsel) {
 		ret = wm831x_set_bits(wm831x, dvs_reg,
 				      WM831X_DC1_DVS_VSEL_MASK,
-				      dcdc->dvs_vsel);
+				      vsel);
 		if (ret == 0)
 			dcdc->dvs_vsel = vsel;
 		else