drivers/soc/fsl/dpio/dpio-driver.c
Source file repositories/reference/linux-study-clean/drivers/soc/fsl/dpio/dpio-driver.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/soc/fsl/dpio/dpio-driver.c- Extension
.c- Size
- 8129 bytes
- Lines
- 338
- Domain
- Driver Families
- Bucket
- drivers/soc
- 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.
- 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/types.hlinux/init.hlinux/module.hlinux/platform_device.hlinux/interrupt.hlinux/dma-mapping.hlinux/delay.hlinux/io.hlinux/sys_soc.hlinux/fsl/mc.hsoc/fsl/dpaa2-io.hqbman-portal.hdpio.hdpio-cmd.h
Detected Declarations
struct dpio_privfunction dpaa2_dpio_get_cluster_sdestfunction soc_device_matchfunction dpio_irq_handlerfunction unregister_dpio_irq_handlersfunction register_dpio_irq_handlersfunction dpaa2_dpio_probefunction dpio_teardown_irqsfunction dpaa2_dpio_removefunction dpio_driver_initfunction dpio_driver_exitmodule init dpio_driver_init
Annotated Snippet
module_init(dpio_driver_init);
module_exit(dpio_driver_exit);Annotation
- Immediate include surface: `linux/types.h`, `linux/init.h`, `linux/module.h`, `linux/platform_device.h`, `linux/interrupt.h`, `linux/dma-mapping.h`, `linux/delay.h`, `linux/io.h`.
- Detected declarations: `struct dpio_priv`, `function dpaa2_dpio_get_cluster_sdest`, `function soc_device_match`, `function dpio_irq_handler`, `function unregister_dpio_irq_handlers`, `function register_dpio_irq_handlers`, `function dpaa2_dpio_probe`, `function dpio_teardown_irqs`, `function dpaa2_dpio_remove`, `function dpio_driver_init`.
- Atlas domain: Driver Families / drivers/soc.
- Implementation status: integration implementation candidate.
- 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.