C++ (Cpp) dwc3_exynos_register_phys примеры использования

Пример #1

Файл: dwc3-exynos.c Проект: Lyude/linux

static int dwc3_exynos_probe(struct platform_device *pdev)
{
	struct dwc3_exynos	*exynos;
	struct device		*dev = &pdev->dev;
	struct device_node	*node = dev->of_node;

	int			ret;

	exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL);
	if (!exynos)
		return -ENOMEM;

	platform_set_drvdata(pdev, exynos);

	exynos->dev	= dev;

	exynos->clk = devm_clk_get(dev, "usbdrd30");
	if (IS_ERR(exynos->clk)) {
		dev_err(dev, "couldn't get clock\n");
		return -EINVAL;
	}
	ret = clk_prepare_enable(exynos->clk);
	if (ret)
		return ret;

	exynos->susp_clk = devm_clk_get(dev, "usbdrd30_susp_clk");
	if (IS_ERR(exynos->susp_clk))
		exynos->susp_clk = NULL;
	ret = clk_prepare_enable(exynos->susp_clk);
	if (ret)
		goto susp_clk_err;

	if (of_device_is_compatible(node, "samsung,exynos7-dwusb3")) {
		exynos->axius_clk = devm_clk_get(dev, "usbdrd30_axius_clk");
		if (IS_ERR(exynos->axius_clk)) {
			dev_err(dev, "no AXI UpScaler clk specified\n");
			ret = -ENODEV;
			goto axius_clk_err;
		}
		ret = clk_prepare_enable(exynos->axius_clk);
		if (ret)
			goto axius_clk_err;
	} else {
		exynos->axius_clk = NULL;
	}

	exynos->vdd33 = devm_regulator_get(dev, "vdd33");
	if (IS_ERR(exynos->vdd33)) {
		ret = PTR_ERR(exynos->vdd33);
		goto vdd33_err;
	}
	ret = regulator_enable(exynos->vdd33);
	if (ret) {
		dev_err(dev, "Failed to enable VDD33 supply\n");
		goto vdd33_err;
	}

	exynos->vdd10 = devm_regulator_get(dev, "vdd10");
	if (IS_ERR(exynos->vdd10)) {
		ret = PTR_ERR(exynos->vdd10);
		goto vdd10_err;
	}
	ret = regulator_enable(exynos->vdd10);
	if (ret) {
		dev_err(dev, "Failed to enable VDD10 supply\n");
		goto vdd10_err;
	}

	ret = dwc3_exynos_register_phys(exynos);
	if (ret) {
		dev_err(dev, "couldn't register PHYs\n");
		goto phys_err;
	}

	if (node) {
		ret = of_platform_populate(node, NULL, NULL, dev);
		if (ret) {
			dev_err(dev, "failed to add dwc3 core\n");
			goto populate_err;
		}
	} else {
		dev_err(dev, "no device node, failed to add dwc3 core\n");
		ret = -ENODEV;
		goto populate_err;
	}

	return 0;

populate_err:
	platform_device_unregister(exynos->usb2_phy);
	platform_device_unregister(exynos->usb3_phy);
phys_err:
	regulator_disable(exynos->vdd10);
vdd10_err:
	regulator_disable(exynos->vdd33);
vdd33_err:
	clk_disable_unprepare(exynos->axius_clk);
axius_clk_err:
	clk_disable_unprepare(exynos->susp_clk);
susp_clk_err:
	clk_disable_unprepare(exynos->clk);
	return ret;
}

Пример #2

Файл: dwc3-exynos.c Проект: AnadoluPanteri/kernel-plus-harmattan

static int dwc3_exynos_probe(struct platform_device *pdev)
{
	struct dwc3_exynos	*exynos;
	struct clk		*clk;
	struct device		*dev = &pdev->dev;
	struct device_node	*node = dev->of_node;

	int			ret = -ENOMEM;

	exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL);
	if (!exynos) {
		dev_err(dev, "not enough memory\n");
		goto err1;
	}

	/*
	 * Right now device-tree probed devices don't get dma_mask set.
	 * Since shared usb code relies on it, set it here for now.
	 * Once we move to full device tree support this will vanish off.
	 */
	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
	if (ret)
		goto err1;

	platform_set_drvdata(pdev, exynos);

	ret = dwc3_exynos_register_phys(exynos);
	if (ret) {
		dev_err(dev, "couldn't register PHYs\n");
		goto err1;
	}

	clk = devm_clk_get(dev, "usbdrd30");
	if (IS_ERR(clk)) {
		dev_err(dev, "couldn't get clock\n");
		ret = -EINVAL;
		goto err1;
	}

	exynos->dev	= dev;
	exynos->clk	= clk;

	clk_prepare_enable(exynos->clk);

	if (node) {
		ret = of_platform_populate(node, NULL, NULL, dev);
		if (ret) {
			dev_err(dev, "failed to add dwc3 core\n");
			goto err2;
		}
	} else {
		dev_err(dev, "no device node, failed to add dwc3 core\n");
		ret = -ENODEV;
		goto err2;
	}

	return 0;

err2:
	clk_disable_unprepare(clk);
err1:
	return ret;
}