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pinctrl: mediatek: add support for gpio-controller property in root node

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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>
This commit is contained in:
Christian Marangi 2024-06-24 23:03:36 +02:00 • committed by Tom Rini
parent 55269f1019
commit e499d5d430
1 changed files with 10 additions and 0 deletions
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10
drivers/pinctrl/mediatek/pinctrl-mtk-common.c
View file

@ -761,6 +761,15 @@ static int mtk_gpiochip_register(struct udevice *parent)
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 @@ static int mtk_gpiochip_register(struct udevice *parent)
if (ret)
return ret;
bind:
ret = device_bind_with_driver_data(parent, &mtk_gpio_driver,
"mediatek_gpio", 0, node,
&dev);