static int ingenic_rproc_probe()

in ingenic_rproc.c [166:235]

• 57 lines of code
• 9 McCabe index (conditional complexity)

static int ingenic_rproc_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct resource *mem;
	struct rproc *rproc;
	struct vpu *vpu;
	unsigned int i;
	int ret;

	rproc = devm_rproc_alloc(dev, "ingenic-vpu",
				 &ingenic_rproc_ops, NULL, sizeof(*vpu));
	if (!rproc)
		return -ENOMEM;

	rproc->auto_boot = auto_boot;

	vpu = rproc->priv;
	vpu->dev = &pdev->dev;
	platform_set_drvdata(pdev, vpu);

	mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aux");
	vpu->aux_base = devm_ioremap_resource(dev, mem);
	if (IS_ERR(vpu->aux_base)) {
		dev_err(dev, "Failed to ioremap\n");
		return PTR_ERR(vpu->aux_base);
	}

	for (i = 0; i < ARRAY_SIZE(vpu_mem_map); i++) {
		mem = platform_get_resource_byname(pdev, IORESOURCE_MEM,
						   vpu_mem_map[i].name);

		vpu->mem_info[i].base = devm_ioremap_resource(dev, mem);
		if (IS_ERR(vpu->mem_info[i].base)) {
			ret = PTR_ERR(vpu->mem_info[i].base);
			dev_err(dev, "Failed to ioremap\n");
			return ret;
		}

		vpu->mem_info[i].len = resource_size(mem);
		vpu->mem_info[i].map = &vpu_mem_map[i];
	}

	vpu->clks[0].id = "vpu";
	vpu->clks[1].id = "aux";

	ret = devm_clk_bulk_get(dev, ARRAY_SIZE(vpu->clks), vpu->clks);
	if (ret) {
		dev_err(dev, "Failed to get clocks\n");
		return ret;
	}

	vpu->irq = platform_get_irq(pdev, 0);
	if (vpu->irq < 0)
		return vpu->irq;

	ret = devm_request_irq(dev, vpu->irq, vpu_interrupt, IRQF_NO_AUTOEN,
			       "VPU", rproc);
	if (ret < 0) {
		dev_err(dev, "Failed to request IRQ\n");
		return ret;
	}

	ret = devm_rproc_add(dev, rproc);
	if (ret) {
		dev_err(dev, "Failed to register remote processor\n");
		return ret;
	}

	return 0;
}