drivers/spi/spi-pxa2xx-platform.c

File Facts

System

Linux kernel

Corpus path

drivers/spi/spi-pxa2xx-platform.c

Extension

.c

Size

5310 bytes

Lines

231

Domain

Driver Families

Bucket

drivers/spi

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/acpi.h
• linux/clk.h
• linux/device.h
• linux/err.h
• linux/init.h
• linux/mod_devicetable.h
• linux/platform_device.h
• linux/pm_runtime.h
• linux/property.h
• linux/types.h
• spi-pxa2xx.h

Detected Declarations

• function pxa2xx_spi_idma_filter
• function pxa2xx_spi_init_ssp
• function pxa2xx_spi_ssp_release
• function pxa2xx_spi_init_pdata
• function pxa2xx_spi_platform_probe
• function pxa2xx_spi_platform_remove
• function pxa2xx_spi_init
• function pxa2xx_spi_exit
• module init pxa2xx_spi_init

Annotated Snippet

subsys_initcall(pxa2xx_spi_init);

static void __exit pxa2xx_spi_exit(void)
{
	platform_driver_unregister(&driver);
}
module_exit(pxa2xx_spi_exit);

MODULE_AUTHOR("Stephen Street");
MODULE_DESCRIPTION("PXA2xx SSP SPI Controller platform driver");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("SPI_PXA2xx");
MODULE_ALIAS("platform:pxa2xx-spi");
MODULE_SOFTDEP("pre: dw_dmac");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/clk.h`, `linux/device.h`, `linux/err.h`, `linux/init.h`, `linux/mod_devicetable.h`, `linux/platform_device.h`, `linux/pm_runtime.h`.
• Detected declarations: `function pxa2xx_spi_idma_filter`, `function pxa2xx_spi_init_ssp`, `function pxa2xx_spi_ssp_release`, `function pxa2xx_spi_init_pdata`, `function pxa2xx_spi_platform_probe`, `function pxa2xx_spi_platform_remove`, `function pxa2xx_spi_init`, `function pxa2xx_spi_exit`, `module init pxa2xx_spi_init`.
• Atlas domain: Driver Families / drivers/spi.
• 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.