gpio: ts4800: 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/20250825-gpio-mmio-gpio-conv-v1-7-356b4b1d5110@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-ts4800.c b/drivers/gpio/gpio-ts4800.c
index cb3eeeb..8443479 100644 (file)
--- a/drivers/gpio/gpio-ts4800.c
+++ b/drivers/gpio/gpio-ts4800.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/gpio/driver.h>
+#include <linux/gpio/generic.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/property.h>
@@ -17,13 +18,14 @@
 
 static int ts4800_gpio_probe(struct platform_device *pdev)
 {
+       struct gpio_generic_chip_config config;
        struct device *dev = &pdev->dev;
-       struct gpio_chip *chip;
+       struct gpio_generic_chip *chip;
        void __iomem *base_addr;
        int retval;
        u32 ngpios;
 
-       chip = devm_kzalloc(&pdev->dev, sizeof(struct gpio_chip), GFP_KERNEL);
+       chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
        if (!chip)
                return -ENOMEM;
 
@@ -37,15 +39,22 @@ static int ts4800_gpio_probe(struct platform_device *pdev)
        else if (retval)
                return retval;
 
-       retval = bgpio_init(chip, &pdev->dev, 2, base_addr + INPUT_REG_OFFSET,
-                           base_addr + OUTPUT_REG_OFFSET, NULL,
-                           base_addr + DIRECTION_REG_OFFSET, NULL, 0);
+       config = (typeof(config)){
+               .dev = dev,
+               .sz = 2,
+               .dat = base_addr + INPUT_REG_OFFSET,
+               .set = base_addr + OUTPUT_REG_OFFSET,
+               .dirout = base_addr + DIRECTION_REG_OFFSET,
+       };
+
+       retval = gpio_generic_chip_init(chip, &config);
        if (retval)
-               return dev_err_probe(dev, retval, "bgpio_init failed\n");
+               return dev_err_probe(dev, retval,
+                                    "failed to initialize the generic GPIO chip\n");
 
-       chip->ngpio = ngpios;
+       chip->gc.ngpio = ngpios;
 
-       return devm_gpiochip_add_data(&pdev->dev, chip, NULL);
+       return devm_gpiochip_add_data(dev, &chip->gc, NULL);
 }
 
 static const struct of_device_id ts4800_gpio_of_match[] = {