LXR linux/include/linux/clkdev.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *  include/linux/clkdev.h
   4 *
   5 *  Copyright (C) 2008 Russell King.
   6 *
   7 * Helper for the clk API to assist looking up a struct clk.
   8 */
   9#ifndef __CLKDEV_H
  10#define __CLKDEV_H
  11
  12#include <linux/slab.h>
  13
  14struct clk;
  15struct clk_hw;
  16struct device;
  17
  18struct clk_lookup {
  19        struct list_head        node;
  20        const char              *dev_id;
  21        const char              *con_id;
  22        struct clk              *clk;
  23        struct clk_hw           *clk_hw;
  24};
  25
  26#define CLKDEV_INIT(d, n, c)    \
  27        {                       \
  28                .dev_id = d,    \
  29                .con_id = n,    \
  30                .clk = c,       \
  31        }
  32
  33void clkdev_add(struct clk_lookup *cl);
  34void clkdev_drop(struct clk_lookup *cl);
  35
  36struct clk_lookup *clkdev_create(struct clk *clk, const char *con_id,
  37        const char *dev_fmt, ...) __printf(3, 4);
  38struct clk_lookup *clkdev_hw_create(struct clk_hw *hw, const char *con_id,
  39        const char *dev_fmt, ...) __printf(3, 4);
  40
  41void clkdev_add_table(struct clk_lookup *, size_t);
  42int clk_add_alias(const char *, const char *, const char *, struct device *);
  43
  44int clk_register_clkdev(struct clk *, const char *, const char *);
  45int clk_hw_register_clkdev(struct clk_hw *, const char *, const char *);
  46
  47int devm_clk_hw_register_clkdev(struct device *dev, struct clk_hw *hw,
  48                                const char *con_id, const char *dev_id);
  49void devm_clk_release_clkdev(struct device *dev, const char *con_id,
  50                             const char *dev_id);
  51#endif
  52