drivers/spi/spi-pxa2xx-pci.c

File Facts

System

Linux kernel

Corpus path

drivers/spi/spi-pxa2xx-pci.c

Extension

.c

Size

9201 bytes

Lines

351

Domain

Driver Families

Bucket

drivers/spi

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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/clk-provider.h
• linux/device.h
• linux/err.h
• linux/module.h
• linux/pci.h
• linux/pm.h
• linux/pm_runtime.h
• linux/sprintf.h
• linux/string.h
• linux/types.h
• linux/dmaengine.h
• linux/platform_data/dma-dw.h
• spi-pxa2xx.h

Detected Declarations

• struct pxa_spi_info
• function pxa2xx_spi_pci_clk_unregister
• function pxa2xx_spi_pci_clk_register
• function lpss_dma_filter
• function lpss_dma_put_device
• function lpss_spi_setup
• function ce4100_spi_setup
• function mrfld_spi_setup
• function qrk_spi_setup
• function pxa2xx_spi_pci_probe
• function pxa2xx_spi_pci_remove

Annotated Snippet

static struct pci_driver pxa2xx_spi_pci_driver = {
	.name           = "pxa2xx_spi_pci",
	.id_table       = pxa2xx_spi_pci_devices,
	.driver = {
		.pm	= pm_ptr(&pxa2xx_spi_pm_ops),
	},
	.probe          = pxa2xx_spi_pci_probe,
	.remove         = pxa2xx_spi_pci_remove,
};

module_pci_driver(pxa2xx_spi_pci_driver);

MODULE_DESCRIPTION("CE4100/LPSS PCI-SPI glue code for PXA's driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS("SPI_PXA2xx");
MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");

Annotation

• Immediate include surface: `linux/clk-provider.h`, `linux/device.h`, `linux/err.h`, `linux/module.h`, `linux/pci.h`, `linux/pm.h`, `linux/pm_runtime.h`, `linux/sprintf.h`.
• Detected declarations: `struct pxa_spi_info`, `function pxa2xx_spi_pci_clk_unregister`, `function pxa2xx_spi_pci_clk_register`, `function lpss_dma_filter`, `function lpss_dma_put_device`, `function lpss_spi_setup`, `function ce4100_spi_setup`, `function mrfld_spi_setup`, `function qrk_spi_setup`, `function pxa2xx_spi_pci_probe`.
• Atlas domain: Driver Families / drivers/spi.
• Implementation status: pattern 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.