regulator: provide regulator_bulk_set_supply_names()
There are many regulator consumers who - before using the regulator
bulk functions - set the supply names in regulator_bulk_data using
a for loop.
Let's provide a simple helper in the consumer API that allows users
to do the same with a single function call.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190830071740.4267-2-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c
index 4986cc5..ca3dc3f 100644
--- a/drivers/regulator/helpers.c
+++ b/drivers/regulator/helpers.c
@@ -860,3 +860,24 @@
return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_get_current_limit_regmap);
+
+/**
+ * regulator_bulk_set_supply_names - initialize the 'supply' fields in an array
+ * of regulator_bulk_data structs
+ *
+ * @consumers: array of regulator_bulk_data entries to initialize
+ * @supply_names: array of supply name strings
+ * @num_supplies: number of supply names to initialize
+ *
+ * Note: the 'consumers' array must be the size of 'num_supplies'.
+ */
+void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
+ const char *const *supply_names,
+ unsigned int num_supplies)
+{
+ unsigned int i;
+
+ for (i = 0; i < num_supplies; i++)
+ consumers[i].supply = supply_names[i];
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_set_supply_names);
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 8159834..6d2181a 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -281,6 +281,12 @@
void *regulator_get_drvdata(struct regulator *regulator);
void regulator_set_drvdata(struct regulator *regulator, void *data);
+/* misc helpers */
+
+void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
+ const char *const *supply_names,
+ unsigned int num_supplies);
+
#else
/*
@@ -580,6 +586,12 @@
return -EINVAL;
}
+void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
+ const char *const *supply_names,
+ unsigned int num_supplies)
+{
+}
+
#endif
static inline int regulator_set_voltage_triplet(struct regulator *regulator,
