regulator: max8973: Don't override control1 variable when set ramp delay bits

Current code overrides control1 variable when setting ramp delay bits.
Fix it by just setting ramp_delay bits.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 9a8ea9163005..adb1414e5e37 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -274,15 +274,15 @@ static int max8973_init_dcdc(struct max8973_chip *max,
         if (pdata->reg_init_data &&
                         pdata->reg_init_data->constraints.ramp_delay) {
                 if (pdata->reg_init_data->constraints.ramp_delay < 25000)
-                        control1 = MAX8973_RAMP_12mV_PER_US;
+                        control1 |= MAX8973_RAMP_12mV_PER_US;
                 else if (pdata->reg_init_data->constraints.ramp_delay < 50000)
-                        control1 = MAX8973_RAMP_25mV_PER_US;
+                        control1 |= MAX8973_RAMP_25mV_PER_US;
                 else if (pdata->reg_init_data->constraints.ramp_delay < 200000)
-                        control1 = MAX8973_RAMP_50mV_PER_US;
+                        control1 |= MAX8973_RAMP_50mV_PER_US;
                 else
-                        control1 = MAX8973_RAMP_200mV_PER_US;
+                        control1 |= MAX8973_RAMP_200mV_PER_US;
         } else {
-                control1 = MAX8973_RAMP_12mV_PER_US;
+                control1 |= MAX8973_RAMP_12mV_PER_US;
                 max->desc.ramp_delay = 12500;
         }