+int sh_pfc_config_mux_for_gpio(struct udevice *dev, unsigned pin_selector)
+{
+ struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
+ struct sh_pfc_pinctrl *pmx = &priv->pmx;
+ struct sh_pfc *pfc = &priv->pfc;
+ struct sh_pfc_pin_config *cfg;
+ const struct sh_pfc_pin *pin = NULL;
+ int i, idx;
+
+ for (i = 1; i < pfc->info->nr_pins; i++) {
+ if (priv->pfc.info->pins[i].pin != pin_selector)
+ continue;
+
+ pin = &priv->pfc.info->pins[i];
+ break;
+ }
+
+ if (!pin)
+ return -EINVAL;
+
+ idx = sh_pfc_get_pin_index(pfc, pin->pin);
+ cfg = &pmx->configs[idx];
+
+ if (cfg->type != PINMUX_TYPE_NONE)
+ return -EBUSY;
+
+ return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO);
+}
+