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author | Linus Walleij <linus.walleij@linaro.org> | 2019-12-30 14:27:53 +0100 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2019-12-30 14:27:53 +0100 |
commit | d77552d93ceb2b5a9bc0f7bfd3b158bf9bbbcf47 (patch) | |
tree | 02ca9ba65eb149c4734fcffbfe001a410e586ac1 /drivers/pinctrl/core.c | |
parent | e5399ab2c14963457db221f5a59d12a98f998792 (diff) | |
parent | c72bed23b9e45accdeab626cf2cb2bd08d846f3e (diff) | |
download | linux-d77552d93ceb2b5a9bc0f7bfd3b158bf9bbbcf47.tar.bz2 |
Merge branch 'ib-pinctrl-unreg-mappings' into devel
Diffstat (limited to 'drivers/pinctrl/core.c')
-rw-r--r-- | drivers/pinctrl/core.c | 41 |
1 files changed, 16 insertions, 25 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 46600d9380ea..446d84fe0e31 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1376,8 +1376,15 @@ void devm_pinctrl_put(struct pinctrl *p) } EXPORT_SYMBOL_GPL(devm_pinctrl_put); -int pinctrl_register_map(const struct pinctrl_map *maps, unsigned num_maps, - bool dup) +/** + * pinctrl_register_mappings() - register a set of pin controller mappings + * @maps: the pincontrol mappings table to register. Note the pinctrl-core + * keeps a reference to the passed in maps, so they should _not_ be + * marked with __initdata. + * @num_maps: the number of maps in the mapping table + */ +int pinctrl_register_mappings(const struct pinctrl_map *maps, + unsigned num_maps) { int i, ret; struct pinctrl_maps *maps_node; @@ -1430,17 +1437,8 @@ int pinctrl_register_map(const struct pinctrl_map *maps, unsigned num_maps, if (!maps_node) return -ENOMEM; + maps_node->maps = maps; maps_node->num_maps = num_maps; - if (dup) { - maps_node->maps = kmemdup(maps, sizeof(*maps) * num_maps, - GFP_KERNEL); - if (!maps_node->maps) { - kfree(maps_node); - return -ENOMEM; - } - } else { - maps_node->maps = maps; - } mutex_lock(&pinctrl_maps_mutex); list_add_tail(&maps_node->node, &pinctrl_maps); @@ -1448,22 +1446,14 @@ int pinctrl_register_map(const struct pinctrl_map *maps, unsigned num_maps, return 0; } +EXPORT_SYMBOL_GPL(pinctrl_register_mappings); /** - * pinctrl_register_mappings() - register a set of pin controller mappings - * @maps: the pincontrol mappings table to register. This should probably be - * marked with __initdata so it can be discarded after boot. This - * function will perform a shallow copy for the mapping entries. - * @num_maps: the number of maps in the mapping table + * pinctrl_unregister_mappings() - unregister a set of pin controller mappings + * @maps: the pincontrol mappings table passed to pinctrl_register_mappings() + * when registering the mappings. */ -int pinctrl_register_mappings(const struct pinctrl_map *maps, - unsigned num_maps) -{ - return pinctrl_register_map(maps, num_maps, true); -} -EXPORT_SYMBOL_GPL(pinctrl_register_mappings); - -void pinctrl_unregister_map(const struct pinctrl_map *map) +void pinctrl_unregister_mappings(const struct pinctrl_map *map) { struct pinctrl_maps *maps_node; @@ -1478,6 +1468,7 @@ void pinctrl_unregister_map(const struct pinctrl_map *map) } mutex_unlock(&pinctrl_maps_mutex); } +EXPORT_SYMBOL_GPL(pinctrl_unregister_mappings); /** * pinctrl_force_sleep() - turn a given controller device into sleep state |