static int ep93xx_gpio_probe(struct platform_device *pdev)
{
struct ep93xx_gpio *ep93xx_gpio;
struct resource *res;
int i;
struct device *dev = &pdev->dev;
ep93xx_gpio = devm_kzalloc(dev, sizeof(struct ep93xx_gpio), GFP_KERNEL);
if (!ep93xx_gpio)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ep93xx_gpio->mmio_base = devm_ioremap_resource(dev, res);
if (IS_ERR(ep93xx_gpio->mmio_base))
return PTR_ERR(ep93xx_gpio->mmio_base);
for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
ep93xx_gpio->mmio_base, bank))
dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
bank->label);
}
ep93xx_gpio_init_irq();
return 0;
}
static int ep93xx_gpio_probe(struct platform_device *pdev)
{
struct ep93xx_gpio *ep93xx_gpio;
struct resource *res;
void __iomem *mmio;
int i;
int ret;
ep93xx_gpio = kzalloc(sizeof(*ep93xx_gpio), GFP_KERNEL);
if (!ep93xx_gpio)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
ret = -ENXIO;
goto exit_free;
}
if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
ret = -EBUSY;
goto exit_free;
}
mmio = ioremap(res->start, resource_size(res));
if (!mmio) {
ret = -ENXIO;
goto exit_release;
}
ep93xx_gpio->mmio_base = mmio;
for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
if (ep93xx_gpio_add_bank(bgc, &pdev->dev, mmio, bank))
dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
bank->label);
}
ep93xx_gpio_init_irq();
return 0;
exit_release:
release_mem_region(res->start, resource_size(res));
exit_free:
kfree(ep93xx_gpio);
dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, ret);
return ret;
}