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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 <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250702-gpio-mmio-rework-v2-4-6b77aab684d8@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
pull/1309/head
Bartosz Golaszewski 2025-07-02 11:22:11 +02:00
parent 1f129b15c2
commit fd0f0d1a1e
1 changed files with 16 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/gpio/gpio-clps711x.c
View File

@ -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);
@ -36,34 +38,37 @@ 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;
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[] = {