pinctrl: create pinctrl_free_setting function

This prepares the implementation of pinctrl_select_state_locked() free code.

No functionnal change.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/core.c

@@ -794,16 +794,12 @@ struct pinctrl *pinctrl_get(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(pinctrl_get);
 
-static void pinctrl_put_locked(struct pinctrl *p, bool inlist)
+static void pinctrl_free_setting(bool disable_setting,
+				 struct pinctrl_setting *setting)
 {
-	struct pinctrl_state *state, *n1;
-	struct pinctrl_setting *setting, *n2;
-
-	list_for_each_entry_safe(state, n1, &p->states, node) {
-		list_for_each_entry_safe(setting, n2, &state->settings, node) {
 	switch (setting->type) {
 	case PIN_MAP_TYPE_MUX_GROUP:
-				if (state == p->state)
+		if (disable_setting)
 			pinmux_disable_setting(setting);
 		pinmux_free_setting(setting);
 		break;
@@ -814,6 +810,16 @@ static void pinctrl_put_locked(struct pinctrl *p, bool inlist)
 	default:
 		break;
 	}
+}
+
+static void pinctrl_put_locked(struct pinctrl *p, bool inlist)
+{
+	struct pinctrl_state *state, *n1;
+	struct pinctrl_setting *setting, *n2;
+
+	list_for_each_entry_safe(state, n1, &p->states, node) {
+		list_for_each_entry_safe(setting, n2, &state->settings, node) {
+			pinctrl_free_setting(state == p->state, setting);
 			list_del(&setting->node);
 			kfree(setting);
 		}