drivers/usb/host/xhci-mtk.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/xhci-mtk.c

Extension

.c

Size

22182 bytes

Lines

879

Domain

Driver Families

Bucket

drivers/usb

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/bitfield.h
• linux/dma-mapping.h
• linux/iopoll.h
• linux/kernel.h
• linux/mfd/syscon.h
• linux/module.h
• linux/of.h
• linux/platform_device.h
• linux/pm_runtime.h
• linux/pm_wakeirq.h
• linux/regmap.h
• linux/regulator/consumer.h
• linux/reset.h
• xhci.h
• xhci-mtk.h

Detected Declarations

• enum ssusb_uwk_vers
• function xhci_mtk_set_frame_interval
• function xhci_mtk_rxfifo_depth_set
• function xhci_mtk_init_quirk
• function xhci_mtk_host_enable
• function xhci_mtk_host_disable
• function xhci_mtk_ssusb_config
• function usb_wakeup_ip_sleep_set
• function usb_wakeup_of_property_parse
• function usb_wakeup_set
• function xhci_mtk_clks_get
• function xhci_mtk_vregs_get
• function xhci_mtk_quirks
• function xhci_mtk_setup
• function xhci_mtk_probe
• function xhci_mtk_remove
• function xhci_mtk_suspend
• function xhci_mtk_resume
• function xhci_mtk_runtime_suspend
• function xhci_mtk_runtime_resume
• function xhci_mtk_init
• function xhci_mtk_exit
• module init xhci_mtk_init

Annotated Snippet

module_init(xhci_mtk_init);

static void __exit xhci_mtk_exit(void)
{
	platform_driver_unregister(&mtk_xhci_driver);
}
module_exit(xhci_mtk_exit);

MODULE_AUTHOR("Chunfeng Yun <chunfeng.yun@mediatek.com>");
MODULE_DESCRIPTION("MediaTek xHCI Host Controller Driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/bitfield.h`, `linux/dma-mapping.h`, `linux/iopoll.h`, `linux/kernel.h`, `linux/mfd/syscon.h`, `linux/module.h`, `linux/of.h`, `linux/platform_device.h`.
• Detected declarations: `enum ssusb_uwk_vers`, `function xhci_mtk_set_frame_interval`, `function xhci_mtk_rxfifo_depth_set`, `function xhci_mtk_init_quirk`, `function xhci_mtk_host_enable`, `function xhci_mtk_host_disable`, `function xhci_mtk_ssusb_config`, `function usb_wakeup_ip_sleep_set`, `function usb_wakeup_of_property_parse`, `function usb_wakeup_set`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: integration implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.