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gpio: ge: 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/20250825-gpio-mmio-gpio-conv-v1-14-356b4b1d5110@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2025-08-25 11:48:55 +02:00
parent 90ab705035
commit 56f548840e
1 changed files with 19 additions and 6 deletions
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25
drivers/gpio/gpio-ge.c
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@ -16,6 +16,7 @@
*/
#include <linux/gpio/driver.h>
#include <linux/gpio/generic.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mod_devicetable.h>
@ -51,24 +52,36 @@ MODULE_DEVICE_TABLE(of, gef_gpio_ids);
static int __init gef_gpio_probe(struct platform_device *pdev)
{
struct gpio_generic_chip_config config;
struct device *dev = &pdev->dev;
struct gpio_generic_chip *chip;
struct gpio_chip *gc;
void __iomem *regs;
int ret;
gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
if (!gc)
chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);
ret = bgpio_init(gc, dev, 4, regs + GEF_GPIO_IN, regs + GEF_GPIO_OUT,
NULL, NULL, regs + GEF_GPIO_DIRECT,
BGPIOF_BIG_ENDIAN_BYTE_ORDER);
config = (typeof(config)){
.dev = dev,
.sz = 4,
.dat = regs + GEF_GPIO_IN,
.set = regs + GEF_GPIO_OUT,
.dirin = regs + GEF_GPIO_DIRECT,
.flags = BGPIOF_BIG_ENDIAN_BYTE_ORDER,
};
ret = gpio_generic_chip_init(chip, &config);
if (ret)
return dev_err_probe(dev, ret, "bgpio_init failed\n");
return dev_err_probe(dev, ret,
"failed to initialize the generic GPIO chip\n");
gc = &chip->gc;
/* Setup pointers to chip functions */
gc->label = devm_kasprintf(dev, GFP_KERNEL, "%pfw", dev_fwnode(dev));