include/linux/mfd/arizona/core.h

File Facts

System

Linux kernel

Corpus path

include/linux/mfd/arizona/core.h

Extension

.h

Size

5789 bytes

Lines

192

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/clk.h
• linux/interrupt.h
• linux/notifier.h
• linux/regmap.h
• linux/regulator/consumer.h
• linux/mfd/arizona/pdata.h

Detected Declarations

• struct snd_soc_dapm_context
• struct arizona
• enum arizona_type
• function arizona_call_notifiers
• function wm5102_patch

Annotated Snippet

struct arizona {
	struct regmap *regmap;
	struct device *dev;

	enum arizona_type type;
	unsigned int rev;

	int num_core_supplies;
	struct regulator_bulk_data core_supplies[ARIZONA_MAX_CORE_SUPPLIES];
	struct regulator *dcvdd;
	bool has_fully_powered_off;

	struct arizona_pdata pdata;

	unsigned int external_dcvdd:1;

	int irq;
	struct irq_domain *virq;
	struct regmap_irq_chip_data *aod_irq_chip;
	struct regmap_irq_chip_data *irq_chip;

	bool hpdet_clamp;
	unsigned int hp_ena;

	struct mutex clk_lock;
	int clk32k_ref;

	struct clk *mclk[ARIZONA_NUM_MCLK];

	bool ctrlif_error;

	struct snd_soc_dapm_context *dapm;

	int tdm_width[ARIZONA_MAX_AIF];
	int tdm_slots[ARIZONA_MAX_AIF];

	uint16_t dac_comp_coeff;
	uint8_t dac_comp_enabled;
	struct mutex dac_comp_lock;

	struct blocking_notifier_head notifier;
};

static inline int arizona_call_notifiers(struct arizona *arizona,
					 unsigned long event,
					 void *data)
{
	return blocking_notifier_call_chain(&arizona->notifier, event, data);
}

int arizona_clk32k_enable(struct arizona *arizona);
int arizona_clk32k_disable(struct arizona *arizona);

int arizona_request_irq(struct arizona *arizona, int irq, char *name,
			irq_handler_t handler, void *data);
void arizona_free_irq(struct arizona *arizona, int irq, void *data);
int arizona_set_irq_wake(struct arizona *arizona, int irq, int on);

#ifdef CONFIG_MFD_WM5102
int wm5102_patch(struct arizona *arizona);
#else
static inline int wm5102_patch(struct arizona *arizona)
{
	return 0;
}
#endif

int wm5110_patch(struct arizona *arizona);
int cs47l24_patch(struct arizona *arizona);
int wm8997_patch(struct arizona *arizona);
int wm8998_patch(struct arizona *arizona);

#endif

Annotation

• Immediate include surface: `linux/clk.h`, `linux/interrupt.h`, `linux/notifier.h`, `linux/regmap.h`, `linux/regulator/consumer.h`, `linux/mfd/arizona/pdata.h`.
• Detected declarations: `struct snd_soc_dapm_context`, `struct arizona`, `enum arizona_type`, `function arizona_call_notifiers`, `function wm5102_patch`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source 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.