linux-kernel - [PATCH 2/3] pinctrl: mediatek: Add acpi support

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Message-ID: <20251125023639.2416546-3-lei.xue@mediatek.com>
Date: Tue, 25 Nov 2025 10:36:35 +0800
From: Lei Xue <lei.xue@...iatek.com>
To: Sean Wang <sean.wang@...nel.org>, Linus Walleij
	<linus.walleij@...aro.org>, Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
CC: <linux-kernel@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
	<linux-gpio@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<yong.mao@...iatek.com>, <lei.xue@...iatek.com>, <qingliang.li@...iatek.com>,
	<Fred-WY.Chen@...iatek.com>, <ot_cathy.xu@...iatek.com>,
	<ot_shunxi.zhang@...iatek.com>, <ot_yaoy.wang@...iatek.com>,
	<ot_ye.wang@...iatek.com>
Subject: [PATCH 2/3] pinctrl: mediatek: Add acpi support

Add acpi support in the common part of pinctrl driver. Parsing
hardware base addresses and irq number to initialize eint
accroding to the acpi table data.

Signed-off-by: Lei Xue <lei.xue@...iatek.com>
---
 .../pinctrl/mediatek/pinctrl-mtk-common-v2.c  | 24 +++++++++++++++----
 drivers/pinctrl/mediatek/pinctrl-paris.c      |  6 +++--
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 4918d38abfc2..afa406afead2 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -369,18 +369,30 @@ int mtk_build_eint(struct mtk_pinctrl *hw, struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	int ret, i, j, count_reg_names;
+	struct fwnode_handle *fwnode = dev_fwnode(&pdev->dev);
+	struct resource *res;
 
 	if (!IS_ENABLED(CONFIG_EINT_MTK))
 		return 0;
 
-	if (!of_property_read_bool(np, "interrupt-controller"))
+	if (is_of_node(fwnode) && !of_property_read_bool(np, "interrupt-controller"))
 		return -ENODEV;
 
 	hw->eint = devm_kzalloc(hw->dev, sizeof(*hw->eint), GFP_KERNEL);
 	if (!hw->eint)
 		return -ENOMEM;
 
-	count_reg_names = of_property_count_strings(np, "reg-names");
+	if (is_of_node(fwnode)) {
+		count_reg_names = of_property_count_strings(np, "reg-names");
+	} else {
+		count_reg_names = 0;
+		for (i = 0; i < pdev->num_resources; i++) {
+			struct resource *r = &pdev->resource[i];
+
+			if (resource_type(r) == IORESOURCE_MEM)
+				count_reg_names++;
+		}
+	}
 	if (count_reg_names < 0)
 		return -EINVAL;
 
@@ -396,14 +408,18 @@ int mtk_build_eint(struct mtk_pinctrl *hw, struct platform_device *pdev)
 	}
 
 	for (i = hw->soc->nbase_names, j = 0; i < count_reg_names; i++, j++) {
-		hw->eint->base[j] = of_iomap(np, i);
+		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+		hw->eint->base[j] = is_of_node(fwnode) ? of_iomap(np, i) :
+					ioremap(res->start, resource_size(res));
 		if (IS_ERR(hw->eint->base[j])) {
 			ret = PTR_ERR(hw->eint->base[j]);
 			goto err_free_eint;
 		}
 	}
 
-	hw->eint->irq = irq_of_parse_and_map(np, 0);
+	hw->eint->irq = is_of_node(fwnode)
+			? irq_of_parse_and_map(np, 0)
+			: platform_get_irq(pdev, 0);
 	if (!hw->eint->irq) {
 		ret = -EINVAL;
 		goto err_free_eint;
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index 2cf61cfe809e..9c2751b9b065 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
@@ -1008,6 +1008,7 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct pinctrl_pin_desc *pins;
 	struct mtk_pinctrl *hw;
+	struct fwnode_handle *fwnode = dev_fwnode(&pdev->dev);
 	int err, i;
 
 	hw = devm_kzalloc(&pdev->dev, sizeof(*hw), GFP_KERNEL);
@@ -1032,8 +1033,9 @@ int mtk_paris_pinctrl_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	for (i = 0; i < hw->soc->nbase_names; i++) {
-		hw->base[i] = devm_platform_ioremap_resource_byname(pdev,
-					hw->soc->base_names[i]);
+		hw->base[i] = is_of_node(fwnode)
+			? devm_platform_ioremap_resource_byname(pdev, hw->soc->base_names[i])
+			: devm_platform_get_and_ioremap_resource(pdev, i, NULL);
 		if (IS_ERR(hw->base[i]))
 			return PTR_ERR(hw->base[i]);
 	}
-- 
2.45.2