pinctrl: pinconf: Add generic helper function for freeing mappings

The pinconf-generic.h file exposes functions for creating generic mappings
but it does not expose a function for freeing the mappings. Add a function
for freeing generic mappings.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index d921afd5f109..12343caa114e 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -175,6 +175,8 @@ int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
 int pinconf_generic_dt_node_to_map(struct pinctrl_dev *pctldev,
                 struct device_node *np_config, struct pinctrl_map **map,
                 unsigned *num_maps, enum pinctrl_map_type type);
+void pinconf_generic_dt_free_map(struct pinctrl_dev *pctldev,
+                struct pinctrl_map *map, unsigned num_maps);
 
 static inline int pinconf_generic_dt_node_to_map_group(
                 struct pinctrl_dev *pctldev, struct device_node *np_config,