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gpio: visconti: use new generic GPIO chip API

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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/20250826-gpio-mmio-gpio-conv-part2-v1-12-f67603e4b27e@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski
2025-08-26 11:35:13 +02:00
parent 656dc0c6f7
commit a6f03347de
1 changed files with 15 additions and 10 deletions
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25
drivers/gpio/gpio-visconti.c
View File

@@ -10,6 +10,7 @@
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/gpio/generic.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@@ -32,7 +33,7 @@
struct visconti_gpio {
void __iomem *base;
spinlock_t lock; /* protect gpio register */
struct gpio_chip gpio_chip;
struct gpio_generic_chip chip;
struct device *dev;
};
@@ -158,6 +159,7 @@ static const struct irq_chip visconti_gpio_irq_chip = {
static int visconti_gpio_probe(struct platform_device *pdev)
{
struct gpio_generic_chip_config config;
struct device *dev = &pdev->dev;
struct visconti_gpio *priv;
struct gpio_irq_chip *girq;
@@ -189,19 +191,22 @@ static int visconti_gpio_probe(struct platform_device *pdev)
return -ENODEV;
}
ret = bgpio_init(&priv->gpio_chip, dev, 4,
priv->base + GPIO_IDATA,
priv->base + GPIO_OSET,
priv->base + GPIO_OCLR,
priv->base + GPIO_DIR,
NULL,
0);
config = (typeof(config)){
.dev = dev,
.sz = 4,
.dat = priv->base + GPIO_IDATA,
.set = priv->base + GPIO_OSET,
.clr = priv->base + GPIO_OCLR,
.dirout = priv->base + GPIO_DIR,
};
ret = gpio_generic_chip_init(&priv->chip, &config);
if (ret) {
dev_err(dev, "unable to init generic GPIO\n");
return ret;
}
girq = &priv->gpio_chip.irq;
girq = &priv->chip.gc.irq;
gpio_irq_chip_set_chip(girq, &visconti_gpio_irq_chip);
girq->fwnode = dev_fwnode(dev);
girq->parent_domain = parent;
@@ -210,7 +215,7 @@ static int visconti_gpio_probe(struct platform_device *pdev)
girq->default_type = IRQ_TYPE_NONE;
girq->handler = handle_level_irq;
return devm_gpiochip_add_data(dev, &priv->gpio_chip, priv);
return devm_gpiochip_add_data(dev, &priv->chip.gc, priv);
}
static const struct of_device_id visconti_gpio_of_match[] = {