pinctrl: meson-axg-pmx: fix gpio request

The AXG pmx driver gpio request offset needs the pin base to have the
correct pin number.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
diff --git a/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c b/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c
index c6cb941..cfe94cf 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-axg-pmx.c
@@ -165,7 +165,10 @@
 static int meson_axg_gpio_request(struct udevice *dev,
 				  unsigned int offset, const char *label)
 {
-	return meson_axg_pmx_update_function(dev->parent, offset, 0);
+	struct meson_pinctrl *priv = dev_get_priv(dev->parent);
+
+	return meson_axg_pmx_update_function(dev->parent,
+					     offset + priv->data->pin_base, 0);
 }
 
 static const struct dm_gpio_ops meson_axg_gpio_ops = {