drivers/phy/samsung/phy-samsung-usb2.h

Source file repositories/reference/linux-study-clean/drivers/phy/samsung/phy-samsung-usb2.h

File Facts

System
Linux kernel
Corpus path
drivers/phy/samsung/phy-samsung-usb2.h
Extension
.h
Size
1882 bytes
Lines
72
Domain
Driver Families
Bucket
drivers/phy
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 samsung_usb2_phy_instance {
	const struct samsung_usb2_common_phy *cfg;
	struct phy *phy;
	struct samsung_usb2_phy_driver *drv;
	int int_cnt;
	int ext_cnt;
};

struct samsung_usb2_phy_driver {
	const struct samsung_usb2_phy_config *cfg;
	struct clk *clk;
	struct clk *ref_clk;
	struct regulator *vbus;
	unsigned long ref_rate;
	u32 ref_reg_val;
	struct device *dev;
	void __iomem *reg_phy;
	struct regmap *reg_pmu;
	struct regmap *reg_sys;
	spinlock_t lock;
	struct samsung_usb2_phy_instance instances[];
};

struct samsung_usb2_common_phy {
	int (*power_on)(struct samsung_usb2_phy_instance *);
	int (*power_off)(struct samsung_usb2_phy_instance *);
	unsigned int id;
	char *label;
};


struct samsung_usb2_phy_config {
	const struct samsung_usb2_common_phy *phys;
	int (*rate_to_clk)(unsigned long, u32 *);
	unsigned int num_phys;
	bool has_mode_switch;
	bool has_refclk_sel;
};

extern const struct samsung_usb2_phy_config exynos3250_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
extern const struct samsung_usb2_phy_config exynos5420_usb2_phy_config;
extern const struct samsung_usb2_phy_config s5pv210_usb2_phy_config;
#endif

Annotation

Implementation Notes