drivers/pci/controller/pcie-iproc-platform.c

Source file repositories/reference/linux-study-clean/drivers/pci/controller/pcie-iproc-platform.c

File Facts

System
Linux kernel
Corpus path
drivers/pci/controller/pcie-iproc-platform.c
Extension
.c
Size
3515 bytes
Lines
145
Domain
Representative Device Path
Bucket
PCIe NVMe Storage Path
Inferred role
Representative Device Path: implementation source
Status
source implementation candidate

Why This File Exists

Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.

Dependency Surface

Detected Declarations

Annotated Snippet

if (ret) {
			dev_err(dev,
				"missing brcm,pcie-ob-axi-offset property\n");
			return ret;
		}
		pcie->ob.axi_offset = val;
		pcie->need_ob_cfg = true;
	}

	/*
	 * DT nodes are not used by all platforms that use the iProc PCIe
	 * core driver. For platforms that require explicit inbound mapping
	 * configuration, "dma-ranges" would have been present in DT
	 */
	pcie->need_ib_cfg = of_property_read_bool(np, "dma-ranges");

	/* PHY use is optional */
	pcie->phy = devm_phy_optional_get(dev, "pcie-phy");
	if (IS_ERR(pcie->phy))
		return PTR_ERR(pcie->phy);

	/* PAXC doesn't support legacy IRQs, skip mapping */
	switch (pcie->type) {
	case IPROC_PCIE_PAXC:
	case IPROC_PCIE_PAXC_V2:
		pcie->map_irq = NULL;
		break;
	default:
		break;
	}

	ret = iproc_pcie_setup(pcie, &bridge->windows);
	if (ret) {
		dev_err(dev, "PCIe controller setup failed\n");
		return ret;
	}

	platform_set_drvdata(pdev, pcie);
	return 0;
}

static void iproc_pltfm_pcie_remove(struct platform_device *pdev)
{
	struct iproc_pcie *pcie = platform_get_drvdata(pdev);

	iproc_pcie_remove(pcie);
}

static void iproc_pltfm_pcie_shutdown(struct platform_device *pdev)
{
	struct iproc_pcie *pcie = platform_get_drvdata(pdev);

	iproc_pcie_shutdown(pcie);
}

static struct platform_driver iproc_pltfm_pcie_driver = {
	.driver = {
		.name = "iproc-pcie",
		.of_match_table = of_match_ptr(iproc_pcie_of_match_table),
	},
	.probe = iproc_pltfm_pcie_probe,
	.remove = iproc_pltfm_pcie_remove,
	.shutdown = iproc_pltfm_pcie_shutdown,
};
module_platform_driver(iproc_pltfm_pcie_driver);

MODULE_AUTHOR("Ray Jui <rjui@broadcom.com>");
MODULE_DESCRIPTION("Broadcom iPROC PCIe platform driver");
MODULE_LICENSE("GPL v2");

Annotation

Implementation Notes