gpio: mlxbf: 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 <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250903-gpio-mmio-gpio-conv-part3-v1-8-ff346509f408@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-mlxbf.c b/drivers/gpio/gpio-mlxbf.c
index 1fa9973..843f404 100644 (file)
--- a/drivers/gpio/gpio-mlxbf.c
+++ b/drivers/gpio/gpio-mlxbf.c
@@ -4,6 +4,7 @@
 #include <linux/bitops.h>
 #include <linux/device.h>
 #include <linux/gpio/driver.h>
+#include <linux/gpio/generic.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -37,7 +38,7 @@ struct mlxbf_gpio_context_save_regs {
 
 /* Device state structure. */
 struct mlxbf_gpio_state {
-       struct gpio_chip gc;
+       struct gpio_generic_chip chip;
 
        /* Memory Address */
        void __iomem *base;
@@ -49,6 +50,7 @@ struct mlxbf_gpio_state {
 
 static int mlxbf_gpio_probe(struct platform_device *pdev)
 {
+       struct gpio_generic_chip_config config;
        struct mlxbf_gpio_state *gs;
        struct device *dev = &pdev->dev;
        struct gpio_chip *gc;
@@ -62,21 +64,24 @@ static int mlxbf_gpio_probe(struct platform_device *pdev)
        if (IS_ERR(gs->base))
                return PTR_ERR(gs->base);
 
-       gc = &gs->gc;
-       ret = bgpio_init(gc, dev, 8,
-                        gs->base + MLXBF_GPIO_PIN_STATE,
-                        NULL,
-                        NULL,
-                        gs->base + MLXBF_GPIO_PIN_DIR_O,
-                        gs->base + MLXBF_GPIO_PIN_DIR_I,
-                        0);
+       gc = &gs->chip.gc;
+
+       config = (typeof(config)){
+               .dev = dev,
+               .sz = 8,
+               .dat = gs->base + MLXBF_GPIO_PIN_STATE,
+               .dirout = gs->base + MLXBF_GPIO_PIN_DIR_O,
+               .dirin =  gs->base + MLXBF_GPIO_PIN_DIR_I,
+       };
+
+       ret = gpio_generic_chip_init(&gs->chip, &config);
        if (ret)
                return -ENODEV;
 
        gc->owner = THIS_MODULE;
        gc->ngpio = MLXBF_GPIO_NR;
 
-       ret = devm_gpiochip_add_data(dev, &gs->gc, gs);
+       ret = devm_gpiochip_add_data(dev, &gs->chip.gc, gs);
        if (ret) {
                dev_err(&pdev->dev, "Failed adding memory mapped gpiochip\n");
                return ret;