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gpio: mlxbf: 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/20250903-gpio-mmio-gpio-conv-part3-v1-8-ff346509f408@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski
2025-09-03 10:00:12 +02:00
parent 8bbe11bb2f
commit fff086ebc5
1 changed files with 15 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/gpio/gpio-mlxbf.c
View File

@@ -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;