drivers/pinctrl/qcom/pinctrl-lpass-lpi.h

File Facts

System

Linux kernel

Corpus path

drivers/pinctrl/qcom/pinctrl-lpass-lpi.h

Extension

.h

Size

3167 bytes

Lines

132

Domain

Driver Families

Bucket

drivers/pinctrl

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/array_size.h
• linux/bits.h
• ../core.h

Detected Declarations

• struct platform_device
• struct pinctrl_pin_desc
• struct lpi_pingroup
• struct lpi_function
• struct lpi_pinctrl_variant_data

Annotated Snippet

struct lpi_pingroup {
	unsigned int pin;
	/* Bit offset in slew register for SoundWire pins only */
	int slew_offset;
	unsigned int *funcs;
	unsigned int nfuncs;
	unsigned int pin_offset;
	bool slew_base_spare_1;
};

struct lpi_function {
	const char *name;
	const char * const *groups;
	unsigned int ngroups;
};

struct lpi_pinctrl_variant_data {
	const struct pinctrl_pin_desc *pins;
	int npins;
	const struct lpi_pingroup *groups;
	int ngroups;
	const struct lpi_function *functions;
	int nfunctions;
	unsigned int flags;
};

int lpi_pinctrl_probe(struct platform_device *pdev);
void lpi_pinctrl_remove(struct platform_device *pdev);

#endif /*__PINCTRL_LPASS_LPI_H__*/

Annotation

• Immediate include surface: `linux/array_size.h`, `linux/bits.h`, `../core.h`.
• Detected declarations: `struct platform_device`, `struct pinctrl_pin_desc`, `struct lpi_pingroup`, `struct lpi_function`, `struct lpi_pinctrl_variant_data`.
• Atlas domain: Driver Families / drivers/pinctrl.
• Implementation status: source 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.