regulator: core: Provide regmap get/set bypass operations

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

2 files changed, 45 insertions, 0 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 64e16053975e..419805cdd9d7 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2699,6 +2699,47 @@ 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
  *
  * @regulator: Regulator to configure
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index c9869cfbf261..7274a469e8d9 100644
--- a/include/linux/regulator/driver.h
+++ b/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);