linux-kernel - [PATCH 4/8] gpio: clps711x: use new generic GPIO chip API

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Message-Id: <20250624-gpio-mmio-rework-v1-4-aea12209d258@linaro.org>
Date: Tue, 24 Jun 2025 15:27:36 +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>
Cc: linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 4/8] gpio: clps711x: 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-clps711x.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index d69a24dd4828975b4d62f66b011964456976bfa6..397b347ad6e8b036edbfff75b6a31f2170334f66 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -8,13 +8,15 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/gpio/driver.h>
+#include <linux/gpio/generic.h>
 #include <linux/platform_device.h>
 
 static int clps711x_gpio_probe(struct platform_device *pdev)
 {
+	struct gpio_generic_chip_config config = { };
 	struct device_node *np = pdev->dev.of_node;
+	struct gpio_generic_chip *gen_gc;
 	void __iomem *dat, *dir;
-	struct gpio_chip *gc;
 	int err, id;
 
 	if (!np)
@@ -24,8 +26,8 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
 	if ((id < 0) || (id > 4))
 		return -ENODEV;
 
-	gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
-	if (!gc)
+	gen_gc = devm_kzalloc(&pdev->dev, sizeof(*gen_gc), GFP_KERNEL);
+	if (!gen_gc)
 		return -ENOMEM;
 
 	dat = devm_platform_ioremap_resource(pdev, 0);
@@ -36,35 +38,38 @@ static int clps711x_gpio_probe(struct platform_device *pdev)
 	if (IS_ERR(dir))
 		return PTR_ERR(dir);
 
+	config.dev = &pdev->dev;
+	config.sz = 1;
+	config.dat = dat;
+
 	switch (id) {
 	case 3:
 		/* PORTD is inverted logic for direction register */
-		err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
-				 NULL, dir, 0);
+		config.dirin = dir;
 		break;
 	default:
-		err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
-				 dir, NULL, 0);
+		config.dirout = dir;
 		break;
 	}
 
+	err = gpio_generic_chip_init(gen_gc, &config);
 	if (err)
 		return err;
 
 	switch (id) {
 	case 4:
 		/* PORTE is 3 lines only */
-		gc->ngpio = 3;
+		gen_gc->gc.ngpio = 3;
 		break;
 	default:
 		break;
 	}
 
-	gc->base = -1;
-	gc->owner = THIS_MODULE;
-	platform_set_drvdata(pdev, gc);
+	gen_gc->gc.base = -1;
+	gen_gc->gc.owner = THIS_MODULE;
+	platform_set_drvdata(pdev, &gen_gc->gc);
 
-	return devm_gpiochip_add_data(&pdev->dev, gc, NULL);
+	return devm_gpiochip_add_data(&pdev->dev, &gen_gc->gc, NULL);
 }
 
 static const struct of_device_id clps711x_gpio_ids[] = {

-- 
2.48.1