regmap: Add regmap_get_device

Add a new function regmap_get_device to obtain the underlying struct
device from a regmap.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 74d8c0672cf6..5ba0263fce21 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1073,6 +1073,18 @@ struct regmap *dev_get_regmap(struct device *dev, const char *name)
 }
 EXPORT_SYMBOL_GPL(dev_get_regmap);
 
+/**
+ * regmap_get_device(): Obtain the device from a regmap
+ *
+ * @map: Register map to operate on.
+ *
+ * Returns the underlying device that the regmap has been created for.
+ */
+struct device *regmap_get_device(struct regmap *map)
+{
+        return map->dev;
+}
+
 static int _regmap_select_page(struct regmap *map, unsigned int *reg,
                                struct regmap_range_node *range,
                                unsigned int val_num)