drivers/pinctrl/berlin/berlin.h

Source file repositories/reference/linux-study-clean/drivers/pinctrl/berlin/berlin.h

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/berlin/berlin.h
Extension
.h
Size
1241 bytes
Lines
57
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct berlin_desc_function {
	const char	*name;
	u8		muxval;
};

struct berlin_desc_group {
	const char			*name;
	u8				offset;
	u8				bit_width;
	u8				lsb;
	struct berlin_desc_function	*functions;
};

struct berlin_pinctrl_desc {
	const struct berlin_desc_group	*groups;
	unsigned			ngroups;
};

#define BERLIN_PINCTRL_GROUP(_name, _offset, _width, _lsb, ...)		\
	{								\
		.name = _name,						\
		.offset = _offset,					\
		.bit_width = _width,					\
		.lsb = _lsb,						\
		.functions = (struct berlin_desc_function[]){		\
			__VA_ARGS__, { } },				\
	}

#define BERLIN_PINCTRL_FUNCTION(_muxval, _name)		\
	{						\
		.name = _name,				\
		.muxval = _muxval,			\
	}

#define BERLIN_PINCTRL_FUNCTION_UNKNOWN		{}

int berlin_pinctrl_probe(struct platform_device *pdev,
			 const struct berlin_pinctrl_desc *desc);

int berlin_pinctrl_probe_regmap(struct platform_device *pdev,
				const struct berlin_pinctrl_desc *desc,
				struct regmap *regmap);

#endif /* __PINCTRL_BERLIN_H */

Annotation

Implementation Notes