drivers/gpu/drm/loongson/lsdc_pixpll.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/loongson/lsdc_pixpll.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/loongson/lsdc_pixpll.h
Extension
.h
Size
2404 bytes
Lines
87
Domain
Driver Families
Bucket
drivers/gpu
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 lsdc_pixpll_parms {
	unsigned int ref_clock;
	unsigned int div_ref;
	unsigned int loopc;
	unsigned int div_out;
};

struct lsdc_pixpll;

struct lsdc_pixpll_funcs {
	int (*setup)(struct lsdc_pixpll * const this);

	int (*compute)(struct lsdc_pixpll * const this,
		       unsigned int clock,
		       struct lsdc_pixpll_parms *pout);

	int (*update)(struct lsdc_pixpll * const this,
		      struct lsdc_pixpll_parms const *pin);

	unsigned int (*get_rate)(struct lsdc_pixpll * const this);

	void (*print)(struct lsdc_pixpll * const this,
		      struct drm_printer *printer);
};

struct lsdc_pixpll {
	const struct lsdc_pixpll_funcs *funcs;

	struct drm_device *ddev;

	/* PLL register offset */
	u32 reg_base;
	/* PLL register size in bytes */
	u32 reg_size;

	void __iomem *mmio;

	struct lsdc_pixpll_parms *priv;
};

int lsdc_pixpll_init(struct lsdc_pixpll * const this,
		     struct drm_device *ddev,
		     unsigned int index);

#endif

Annotation

Implementation Notes