C++ (Cpp) ep93xx_gpio_add_bank 예제들

예제 #1

파일: gpio-ep93xx.c 프로젝트: causten/linux

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;
}

예제 #2

파일: gpio-ep93xx.c 프로젝트: 7799/linux

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;
}