static int fdt_pmu_probe_pmu_dev()

in xgene_pmu.c [1668:1718]

• 44 lines of code
• 13 McCabe index (conditional complexity)

static int fdt_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu,
				 struct platform_device *pdev)
{
	struct xgene_pmu_dev_ctx *ctx;
	struct device_node *np;

	for_each_child_of_node(pdev->dev.of_node, np) {
		if (!of_device_is_available(np))
			continue;

		if (of_device_is_compatible(np, "apm,xgene-pmu-l3c"))
			ctx = fdt_get_pmu_hw_inf(xgene_pmu, np, PMU_TYPE_L3C);
		else if (of_device_is_compatible(np, "apm,xgene-pmu-iob"))
			ctx = fdt_get_pmu_hw_inf(xgene_pmu, np, PMU_TYPE_IOB);
		else if (of_device_is_compatible(np, "apm,xgene-pmu-mcb"))
			ctx = fdt_get_pmu_hw_inf(xgene_pmu, np, PMU_TYPE_MCB);
		else if (of_device_is_compatible(np, "apm,xgene-pmu-mc"))
			ctx = fdt_get_pmu_hw_inf(xgene_pmu, np, PMU_TYPE_MC);
		else
			ctx = NULL;

		if (!ctx)
			continue;

		if (xgene_pmu_dev_add(xgene_pmu, ctx)) {
			/* Can't add the PMU device, skip it */
			devm_kfree(xgene_pmu->dev, ctx);
			continue;
		}

		switch (ctx->inf.type) {
		case PMU_TYPE_L3C:
			list_add(&ctx->next, &xgene_pmu->l3cpmus);
			break;
		case PMU_TYPE_IOB:
			list_add(&ctx->next, &xgene_pmu->iobpmus);
			break;
		case PMU_TYPE_IOB_SLOW:
			list_add(&ctx->next, &xgene_pmu->iobpmus);
			break;
		case PMU_TYPE_MCB:
			list_add(&ctx->next, &xgene_pmu->mcbpmus);
			break;
		case PMU_TYPE_MC:
			list_add(&ctx->next, &xgene_pmu->mcpmus);
			break;
		}
	}

	return 0;
}