From e499d5d430edc69acfee8023d104c389d752ed56 Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
Date: Mon, 24 Jun 2024 23:03:36 +0200
Subject: [PATCH] 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>
---
drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 37fc28bb77..ede3959c94 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -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);
--
2.39.5