Skip to main content

Clock (clk)

Clock.

Device Type​

DEVICE_TYPE_CLK

Structure​

struct clk_t {
    char * name;
    int count;
    struct clk_t * (*set_parent)(struct clk_t * clk, struct clk_t * parent);
    struct clk_t * (*get_parent)(struct clk_t * clk);
    int (*set_enable)(struct clk_t * clk, int enable);
    int (*get_enable)(struct clk_t * clk);
    void (*set_rate)(struct clk_t * clk, uint64_t prate, uint64_t rate);
    uint64_t (*get_rate)(struct clk_t * clk, uint64_t prate);
    void * priv;
};

Key API​

FunctionDescription
search_clk(name)Find a clock by name
register_clk(clk, drv)Register a clock
unregister_clk(clk)Unregister a clock
clk_enable/disable(name)Enable/disable a clock
clk_set_rate(name, rate)Set clock frequency
clk_get_rate(name)Get clock frequency

Description​

Clock tree management interface. Provides frequency configuration, parent source selection, and enable/disable gating.