drivers/clk/versatile/icst.h

Source file repositories/reference/linux-study-clean/drivers/clk/versatile/icst.h

File Facts

System
Linux kernel
Corpus path
drivers/clk/versatile/icst.h
Extension
.h
Size
1560 bytes
Lines
55
Domain
Driver Families
Bucket
drivers/clk
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 icst_params {
	unsigned long	ref;
	unsigned long	vco_max;	/* inclusive */
	unsigned long	vco_min;	/* exclusive */
	unsigned short	vd_min;		/* inclusive */
	unsigned short	vd_max;		/* inclusive */
	unsigned char	rd_min;		/* inclusive */
	unsigned char	rd_max;		/* inclusive */
	const unsigned char *s2div;	/* chip specific s2div array */
	const unsigned char *idx2s;	/* chip specific idx2s array */
};

struct icst_vco {
	unsigned short	v;
	unsigned char	r;
	unsigned char	s;
};

unsigned long icst_hz(const struct icst_params *p, struct icst_vco vco);
struct icst_vco icst_hz_to_vco(const struct icst_params *p, unsigned long freq);

/*
 * ICST307 VCO frequency must be between 6MHz and 200MHz (3.3 or 5V).
 * This frequency is pre-output divider.
 */
#define ICST307_VCO_MIN	6000000
#define ICST307_VCO_MAX	200000000

extern const unsigned char icst307_s2div[];
extern const unsigned char icst307_idx2s[];

/*
 * ICST525 VCO frequency must be between 10MHz and 200MHz (3V) or 320MHz (5V).
 * This frequency is pre-output divider.
 */
#define ICST525_VCO_MIN		10000000
#define ICST525_VCO_MAX_3V	200000000
#define ICST525_VCO_MAX_5V	320000000

extern const unsigned char icst525_s2div[];
extern const unsigned char icst525_idx2s[];

#endif

Annotation

Implementation Notes