regulator: core: Allow drivers to pass in a regmap

Since many regulators use regmap for register I/O and since there's quite
a few very common patterns in the code allow drivers to pass in a regmap
to the core for use in generic code.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 4f529ed48d4c..2e753731217b 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -19,6 +19,7 @@
 #include <linux/notifier.h>
 #include <linux/regulator/consumer.h>
 
+struct regmap;
 struct regulator_dev;
 struct regulator_init_data;
 
@@ -187,12 +188,14 @@ struct regulator_desc {
  * @driver_data: private regulator data
  * @of_node: OpenFirmware node to parse for device tree bindings (may be
  *           NULL).
+ * @regmap: regmap to use for core regmap helpers
  */
 struct regulator_config {
         struct device *dev;
         const struct regulator_init_data *init_data;
         void *driver_data;
         struct device_node *of_node;
+        struct regmap *regmap;
 };
 
 /*
@@ -223,6 +226,7 @@ struct regulator_dev {
         struct device dev;
         struct regulation_constraints *constraints;
         struct regulator *supply;       /* for tree */
+        struct regmap *regmap;
 
         struct delayed_work disable_work;
         int deferred_disables;