drivers/clk/sunxi/clk-factors.h

root/drivers/clk/sunxi/clk-factors.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __MACH_SUNXI_CLK_FACTORS_H
#define __MACH_SUNXI_CLK_FACTORS_H

#include <linux/clk-provider.h>
#include <linux/spinlock.h>

#define SUNXI_FACTORS_NOT_APPLICABLE    (0)

struct clk_factors_config {
        u8 nshift;
        u8 nwidth;
        u8 kshift;
        u8 kwidth;
        u8 mshift;
        u8 mwidth;
        u8 pshift;
        u8 pwidth;
        u8 n_start;
};

struct factors_request {
        unsigned long rate;
        unsigned long parent_rate;
        u8 parent_index;
        u8 n;
        u8 k;
        u8 m;
        u8 p;
};

struct factors_data {
        int enable;
        int mux;
        int muxmask;
        const struct clk_factors_config *table;
        void (*getter)(struct factors_request *req);
        void (*recalc)(struct factors_request *req);
        const char *name;
};

struct clk_factors {
        struct clk_hw hw;
        void __iomem *reg;
        const struct clk_factors_config *config;
        void (*get_factors)(struct factors_request *req);
        void (*recalc)(struct factors_request *req);
        spinlock_t *lock;
        /* for cleanup */
        struct clk_mux *mux;
        struct clk_gate *gate;
};

struct clk *sunxi_factors_register(struct device_node *node,
                                   const struct factors_data *data,
                                   spinlock_t *lock,
                                   void __iomem *reg);
struct clk *sunxi_factors_register_critical(struct device_node *node,
                                            const struct factors_data *data,
                                            spinlock_t *lock,
                                            void __iomem *reg);

void sunxi_factors_unregister(struct device_node *node, struct clk *clk);

#endif
Linux
