regulator: fan53555: fill set_suspend_enable/disable callback

Setting the set_suspend_enable/disable callback to support
enable and disable the dcdc when system is suspend.

Signed-off-by: zhangqing <zhangqing@rock-chips.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
index 4940e8287df6..2cb5cc311610 100644
--- a/drivers/regulator/fan53555.c
+++ b/drivers/regulator/fan53555.c
@@ -114,6 +114,22 @@ static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV)
         return 0;
 }
 
+static int fan53555_set_suspend_enable(struct regulator_dev *rdev)
+{
+        struct fan53555_device_info *di = rdev_get_drvdata(rdev);
+
+        return regmap_update_bits(di->regmap, di->sleep_reg,
+                                  VSEL_BUCK_EN, VSEL_BUCK_EN);
+}
+
+static int fan53555_set_suspend_disable(struct regulator_dev *rdev)
+{
+        struct fan53555_device_info *di = rdev_get_drvdata(rdev);
+
+        return regmap_update_bits(di->regmap, di->sleep_reg,
+                                  VSEL_BUCK_EN, 0);
+}
+
 static int fan53555_set_mode(struct regulator_dev *rdev, unsigned int mode)
 {
         struct fan53555_device_info *di = rdev_get_drvdata(rdev);
@@ -192,6 +208,8 @@ static struct regulator_ops fan53555_regulator_ops = {
         .set_mode = fan53555_set_mode,
         .get_mode = fan53555_get_mode,
         .set_ramp_delay = fan53555_set_ramp,
+        .set_suspend_enable = fan53555_set_suspend_enable,
+        .set_suspend_disable = fan53555_set_suspend_disable,
 };
 
 static int fan53555_voltages_setup_fairchild(struct fan53555_device_info *di)