regulator: core: Provide regmap get/set bypass operations

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/core.c

@@ -2698,6 +2698,47 @@ out:
 }
 EXPORT_SYMBOL_GPL(regulator_set_optimum_mode);
 
+/**
+ * regulator_set_bypass_regmap - Default set_bypass() using regmap
+ *
+ * @rdev: device to operate on.
+ * @enable: state to set.
+ */
+int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable)
+{
+	unsigned int val;
+
+	if (enable)
+		val = rdev->desc->bypass_mask;
+	else
+		val = 0;
+
+	return regmap_update_bits(rdev->regmap, rdev->desc->bypass_reg,
+				  rdev->desc->bypass_mask, val);
+}
+EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap);
+
+/**
+ * regulator_get_bypass_regmap - Default get_bypass() using regmap
+ *
+ * @rdev: device to operate on.
+ * @enable: current state.
+ */
+int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
+{
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val);
+	if (ret != 0)
+		return ret;
+
+	*enable = val & rdev->desc->bypass_mask;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap);
+
 /**
  * regulator_allow_bypass - allow the regulator to go into bypass mode
  *

include/linux/regulator/driver.h

@@ -214,6 +214,8 @@ struct regulator_desc {
 	unsigned int vsel_mask;
 	unsigned int enable_reg;
 	unsigned int enable_mask;
+	unsigned int bypass_reg;
+	unsigned int bypass_mask;
 
 	unsigned int enable_time;
 };
@@ -320,6 +322,8 @@ int regulator_disable_regmap(struct regulator_dev *rdev);
 int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
 				   unsigned int old_selector,
 				   unsigned int new_selector);
+int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable);
+int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable);
 
 void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data);