X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=drivers%2Fpinctrl%2Frenesas%2Fpfc.c;h=6670072504535c81608586dcce0af9623b7c3d0c;hb=f6e545a73f8842400f76de4b185b31bea782ff85;hp=b7b74985a34bd3b02dc63d7ab9b95db3f80298f7;hpb=2489bb54a51e9e74a52231de04072628a455025c;p=people%2Fms%2Fu-boot.git

diff --git a/drivers/pinctrl/renesas/pfc.c b/drivers/pinctrl/renesas/pfc.c
index b7b74985a3..6670072504 100644
--- a/drivers/pinctrl/renesas/pfc.c
+++ b/drivers/pinctrl/renesas/pfc.c
@@ -448,6 +448,35 @@ static const char *sh_pfc_pinctrl_get_function_name(struct udevice *dev,
 	return priv->pfc.info->functions[selector].name;
 }
 
+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);
+}
+
 static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector,
 				  unsigned func_selector)
 {