pinctrl: mediatek: add support for gpio-controller property in root node
Add support for gpio-controller property in root pinctrl node.
This is to follow upstream linux DTSI that doesn't define the
gpio-controller and cells in dedicated nodes.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 37fc28b..ede3959 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -761,6 +761,15 @@
if (!drv)
return -ENOENT;
+ /*
+ * Support upstream linux DTSI that define gpio-controller
+ * in the root node (instead of a dedicated subnode)
+ */
+ if (dev_read_bool(parent, "gpio-controller")) {
+ node = dev_ofnode(parent);
+ goto bind;
+ }
+
ret = -ENOENT;
dev_for_each_subnode(node, parent)
if (ofnode_read_bool(node, "gpio-controller")) {
@@ -771,6 +780,7 @@
if (ret)
return ret;
+bind:
ret = device_bind_with_driver_data(parent, &mtk_gpio_driver,
"mediatek_gpio", 0, node,
&dev);