pinctrl: imx: Split imx_pinctrl_probe() into common and mmio parts

Split imx_pinctrl_probe() into imx_pinctrl_probe_common() and
imx_pinctrl_probe_mmio(). The former does the common setup, the
later does the common setup and MMIO access configuration. The
common setup can be used as-is for SCU based systems, update
the pinctrl-imx8 to call only the common setup, update all the
other pinctrl drivers to call imx_pinctrl_probe_mmio().

No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/pinctrl/nxp/pinctrl-imx.c b/drivers/pinctrl/nxp/pinctrl-imx.c
index 2d142c3..e65e069 100644
--- a/drivers/pinctrl/nxp/pinctrl-imx.c
+++ b/drivers/pinctrl/nxp/pinctrl-imx.c
@@ -194,16 +194,11 @@
 	return 0;
 }
 
-int imx_pinctrl_probe(struct udevice *dev)
+int imx_pinctrl_probe_common(struct udevice *dev)
 {
 	struct imx_pinctrl_soc_info *info =
 		(struct imx_pinctrl_soc_info *)dev_get_driver_data(dev);
 	struct imx_pinctrl_priv *priv = dev_get_priv(dev);
-	struct ofnode_phandle_args arg;
-	ofnode node = dev_ofnode(dev);
-	fdt_addr_t addr;
-	fdt_size_t size;
-	int ret;
 
 	if (!info) {
 		dev_err(dev, "wrong pinctrl info\n");
@@ -213,8 +208,23 @@
 	priv->dev = dev;
 	priv->info = info;
 
+	return 0;
+}
+
+int imx_pinctrl_probe_mmio(struct udevice *dev)
+{
+	struct imx_pinctrl_soc_info *info =
+		(struct imx_pinctrl_soc_info *)dev_get_driver_data(dev);
+	struct imx_pinctrl_priv *priv = dev_get_priv(dev);
+	struct ofnode_phandle_args arg;
+	ofnode node = dev_ofnode(dev);
+	fdt_addr_t addr;
+	fdt_size_t size;
+	int ret;
+
-	if (info->flags & IMX8_USE_SCU)
-		return 0;
+	ret = imx_pinctrl_probe_common(dev);
+	if (ret)
+		return ret;
 
 	addr = ofnode_get_addr_size_index(node, 0, &size);
 	if (addr == FDT_ADDR_T_NONE)