drivers/pinctrl/intel/pinctrl-tangier.h

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

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/intel/pinctrl-tangier.h
Extension
.h
Size
2302 bytes
Lines
93
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 tng_family {
	unsigned int barno;
	unsigned int pin_base;
	size_t npins;
	bool protected;
	void __iomem *regs;
};

#define TNG_FAMILY(b, s, e)				\
	{						\
		.barno = (b),				\
		.pin_base = (s),			\
		.npins = (e) - (s) + 1,			\
	}

#define TNG_FAMILY_PROTECTED(b, s, e)			\
	{						\
		.barno = (b),				\
		.pin_base = (s),			\
		.npins = (e) - (s) + 1,			\
		.protected = true,			\
	}

/**
 * struct tng_pinctrl - Tangier pinctrl private structure
 * @dev: Pointer to the device structure
 * @lock: Lock to serialize register access
 * @pctldesc: Pin controller description
 * @pctldev: Pointer to the pin controller device
 * @families: Array of families this pinctrl handles
 * @nfamilies: Number of families in the array
 * @functions: Array of functions
 * @nfunctions: Number of functions in the array
 * @groups: Array of pin groups
 * @ngroups: Number of groups in the array
 * @pins: Array of pins this pinctrl controls
 * @npins: Number of pins in the array
 */
struct tng_pinctrl {
	struct device *dev;
	raw_spinlock_t lock;
	struct pinctrl_desc pctldesc;
	struct pinctrl_dev *pctldev;

	/* Pin controller configuration */
	const struct tng_family *families;
	size_t nfamilies;
	const struct intel_function *functions;
	size_t nfunctions;
	const struct intel_pingroup *groups;
	size_t ngroups;
	const struct pinctrl_pin_desc *pins;
	size_t npins;
};

int devm_tng_pinctrl_probe(struct platform_device *pdev);

#endif /* PINCTRL_TANGIER_H */

Annotation

Implementation Notes