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pinctrl: core: Make dt_free_map optional

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If the pin controller driver is using devm_kzalloc, there may not be
anything to do for dt_free_map. Let's make it optional to avoid
unncessary boilerplate code.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Tony Lindgren 2016-12-30 10:37:31 -08:00 committed by Linus Walleij
parent d83bb5a46d
commit 92c2b67184
2 changed files with 2 additions and 4 deletions
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3
drivers/pinctrl/core.c
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@ -1913,9 +1913,6 @@ static int pinctrl_check_ops(struct pinctrl_dev *pctldev)
!ops->get_group_name)
return -EINVAL;
if (ops->dt_node_to_map && !ops->dt_free_map)
return -EINVAL;
return 0;
}

1
drivers/pinctrl/devicetree.c
View file

@ -42,6 +42,7 @@ static void dt_free_map(struct pinctrl_dev *pctldev,
{
if (pctldev) {
const struct pinctrl_ops *ops = pctldev->desc->pctlops;
if (ops->dt_free_map)
ops->dt_free_map(pctldev, map, num_maps);
} else {
/* There is no pctldev for PIN_MAP_TYPE_DUMMY_STATE */