gpio: clps711x: use new generic GPIO chip API

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

Reviewed-by: Linus Walleij <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Bartosz Golaszewski <[e-mail]>

drivers/gpio/gpio-clps711x.c

···
 #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)
···
 	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);
···
 	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;
+	gen_gc->gc.base = -1;
+	gen_gc->gc.owner = THIS_MODULE;
 
-	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[] = {