linux-kernel - [PATCH] gpio: visconti: Fix fwnode of GPIO IRQ

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Message-Id: <20220421075707.2135242-1-nobuhiro1.iwamatsu@toshiba.co.jp>
Date:   Thu, 21 Apr 2022 16:57:07 +0900
From:   Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
To:     Bartosz Golaszewski <brgl@...ev.pl>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
Subject: [PATCH] gpio: visconti: Fix fwnode of GPIO IRQ

The fwnode of GPIO IRQ must be set to its own fwnode, not the fwnode of the
parent IRQ. Therefore, this sets own fwnode instead of the parent IRQ fwnode to
GPIO IRQ's.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
---
 drivers/gpio/gpio-visconti.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-visconti.c b/drivers/gpio/gpio-visconti.c
index 47455810bdb9..e6534ea1eaa7 100644
--- a/drivers/gpio/gpio-visconti.c
+++ b/drivers/gpio/gpio-visconti.c
@@ -130,7 +130,6 @@ static int visconti_gpio_probe(struct platform_device *pdev)
 	struct gpio_irq_chip *girq;
 	struct irq_domain *parent;
 	struct device_node *irq_parent;
-	struct fwnode_handle *fwnode;
 	int ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -150,14 +149,12 @@ static int visconti_gpio_probe(struct platform_device *pdev)
 	}
 
 	parent = irq_find_host(irq_parent);
+	of_node_put(irq_parent);
 	if (!parent) {
 		dev_err(dev, "No IRQ parent domain\n");
 		return -ENODEV;
 	}
 
-	fwnode = of_node_to_fwnode(irq_parent);
-	of_node_put(irq_parent);
-
 	ret = bgpio_init(&priv->gpio_chip, dev, 4,
 			 priv->base + GPIO_IDATA,
 			 priv->base + GPIO_OSET,
@@ -180,7 +177,7 @@ static int visconti_gpio_probe(struct platform_device *pdev)
 
 	girq = &priv->gpio_chip.irq;
 	girq->chip = irq_chip;
-	girq->fwnode = fwnode;
+	girq->fwnode = of_node_to_fwnode(dev->of_node);
 	girq->parent_domain = parent;
 	girq->child_to_parent_hwirq = visconti_gpio_child_to_parent_hwirq;
 	girq->populate_parent_alloc_arg = visconti_gpio_populate_parent_fwspec;
-- 
2.34.1