include/linux/mfd/cs42l43.h

File Facts

System

Linux kernel

Corpus path

include/linux/mfd/cs42l43.h

Extension

.h

Size

2276 bytes

Lines

105

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/completion.h
• linux/mutex.h
• linux/regmap.h
• linux/regulator/consumer.h
• linux/workqueue.h

Detected Declarations

• struct device
• struct gpio_desc
• struct sdw_slave
• struct cs42l43
• enum cs42l43_irq_numbers

Annotated Snippet

struct cs42l43 {
	struct device *dev;
	struct regmap *regmap;
	struct sdw_slave *sdw;

	struct regulator *vdd_p;
	struct regulator *vdd_d;
	struct regulator_bulk_data core_supplies[CS42L43_N_SUPPLIES];

	struct gpio_desc *reset;

	int irq;
	struct regmap_irq_chip irq_chip;
	struct regmap_irq_chip_data *irq_data;

	struct work_struct boot_work;
	struct completion device_attach;
	struct completion device_detach;
	struct completion firmware_download;
	int firmware_error;

	unsigned int sdw_freq;
	/* Lock to gate control of the PLL and its sources. */
	struct mutex pll_lock;

	bool sdw_pll_active;
	bool attached;
	bool hw_lock;
	long variant_id;
};

#endif /* CS42L43_CORE_EXT_H */

Annotation

• Immediate include surface: `linux/completion.h`, `linux/mutex.h`, `linux/regmap.h`, `linux/regulator/consumer.h`, `linux/workqueue.h`.
• Detected declarations: `struct device`, `struct gpio_desc`, `struct sdw_slave`, `struct cs42l43`, `enum cs42l43_irq_numbers`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.