drivers/usb/phy/phy-twl6030-usb.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/phy/phy-twl6030-usb.c

Extension

.c

Size

11556 bytes

Lines

458

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/module.h
• linux/init.h
• linux/interrupt.h
• linux/platform_device.h
• linux/io.h
• linux/usb/musb.h
• linux/usb/phy_companion.h
• linux/phy/omap_usb.h
• linux/mfd/twl.h
• linux/regulator/consumer.h
• linux/err.h
• linux/slab.h
• linux/delay.h
• linux/of.h

Detected Declarations

• struct twl6030_usb
• function twl6030_writeb
• function twl6030_readb
• function twl6030_start_srp
• function twl6030_usb_ldo_init
• function vbus_show
• function twl6030_usb_irq
• function twl6030_usbotg_irq
• function twl6030_status_work
• function twl6030_enable_irq
• function otg_set_vbus_work
• function twl6030_set_vbus
• function twl6030_usb_probe
• function twl6030_usb_remove
• function twl6030_usb_init
• function twl6030_usb_exit
• module init twl6030_usb_init

Annotated Snippet

subsys_initcall(twl6030_usb_init);

static void __exit twl6030_usb_exit(void)
{
	platform_driver_unregister(&twl6030_usb_driver);
}
module_exit(twl6030_usb_exit);

MODULE_ALIAS("platform:twl6030_usb");
MODULE_AUTHOR("Hema HK <hemahk@ti.com>");
MODULE_DESCRIPTION("TWL6030 USB transceiver driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/interrupt.h`, `linux/platform_device.h`, `linux/io.h`, `linux/usb/musb.h`, `linux/usb/phy_companion.h`, `linux/phy/omap_usb.h`.
• Detected declarations: `struct twl6030_usb`, `function twl6030_writeb`, `function twl6030_readb`, `function twl6030_start_srp`, `function twl6030_usb_ldo_init`, `function vbus_show`, `function twl6030_usb_irq`, `function twl6030_usbotg_irq`, `function twl6030_status_work`, `function twl6030_enable_irq`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.