linux-kernel - [PATCH 11/12] gpio: vf610: use new generic GPIO chip API

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Message-Id: <20250826-gpio-mmio-gpio-conv-part2-v1-11-f67603e4b27e@linaro.org>
Date: Tue, 26 Aug 2025 11:35:12 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Ray Jui <rjui@...adcom.com>, 
 Scott Branden <sbranden@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Yang Shen <shenyang39@...wei.com>, 
 Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 11/12] gpio: vf610: use new generic GPIO chip API

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Convert the driver to using the new generic GPIO chip interfaces from
linux/gpio/generic.h.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/gpio/gpio-vf610.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c
index 7de0d5b53d5604784a84def54f284f263a9e12dd..fa7e322a834cc2afbab7d4948cd41465867aa4c8 100644
--- a/drivers/gpio/gpio-vf610.c
+++ b/drivers/gpio/gpio-vf610.c
@@ -10,6 +10,7 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/gpio/driver.h>
+#include <linux/gpio/generic.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -28,7 +29,7 @@ struct fsl_gpio_soc_data {
 };
 
 struct vf610_gpio_port {
-	struct gpio_chip gc;
+	struct gpio_generic_chip chip;
 	void __iomem *base;
 	void __iomem *gpio_base;
 	const struct fsl_gpio_soc_data *sdata;
@@ -108,7 +109,7 @@ static void vf610_gpio_irq_handler(struct irq_desc *desc)
 	for_each_set_bit(pin, &irq_isfr, VF610_GPIO_PER_PORT) {
 		vf610_gpio_writel(BIT(pin), port->base + PORT_ISFR);
 
-		generic_handle_domain_irq(port->gc.irq.domain, pin);
+		generic_handle_domain_irq(port->chip.gc.irq.domain, pin);
 	}
 
 	chained_irq_exit(chip, desc);
@@ -214,6 +215,7 @@ static void vf610_gpio_disable_clk(void *data)
 
 static int vf610_gpio_probe(struct platform_device *pdev)
 {
+	struct gpio_generic_chip_config config;
 	struct device *dev = &pdev->dev;
 	struct vf610_gpio_port *port;
 	struct gpio_chip *gc;
@@ -293,7 +295,7 @@ static int vf610_gpio_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	gc = &port->gc;
+	gc = &port->chip.gc;
 	flags = BGPIOF_PINCTRL_BACKEND;
 	/*
 	 * We only read the output register for current value on output
@@ -302,13 +304,18 @@ static int vf610_gpio_probe(struct platform_device *pdev)
 	 */
 	if (port->sdata->have_paddr)
 		flags |= BGPIOF_READ_OUTPUT_REG_SET;
-	ret = bgpio_init(gc, dev, 4,
-			 port->gpio_base + GPIO_PDIR,
-			 port->gpio_base + GPIO_PDOR,
-			 NULL,
-			 port->sdata->have_paddr ? port->gpio_base + GPIO_PDDR : NULL,
-			 NULL,
-			 flags);
+
+	config = (typeof(config)){
+		.dev = dev,
+		.sz = 4,
+		.dat = port->gpio_base + GPIO_PDIR,
+		.set = port->gpio_base + GPIO_PDOR,
+		.dirout = port->sdata->have_paddr ?
+				port->gpio_base + GPIO_PDDR : NULL,
+		.flags = flags,
+	};
+
+	ret = gpio_generic_chip_init(&port->chip, &config);
 	if (ret)
 		return dev_err_probe(dev, ret, "unable to init generic GPIO\n");
 	gc->label = dev_name(dev);

-- 
2.48.1