include/kendryte/bypass.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
   4  */
   5 #ifndef K210_BYPASS_H
   6 #define K210_BYPASS_H
   7
   8 #include <clk.h>
   9
  10 struct k210_bypass {
  11         struct clk clk;
  12         struct clk **children; /* Clocks to reparent */
  13         struct clk **saved_parents; /* Parents saved over en-/dis-able */
  14         struct clk *bypassee; /* Clock to bypass */
  15         const struct clk_ops *bypassee_ops; /* Ops of the bypass clock */
  16         struct clk *alt; /* Clock to set children to when bypassing */
  17         size_t child_count;
  18 };
  19
  20 #define to_k210_bypass(_clk) container_of(_clk, struct k210_bypass, clk)
  21
  22 int k210_bypass_set_children(struct clk *clk, struct clk **children,
  23                              size_t child_count);
  24 struct clk *k210_register_bypass_struct(const char *name,
  25                                         const char *parent_name,
  26                                         struct k210_bypass *bypass);
  27 struct clk *k210_register_bypass(const char *name, const char *parent_name,
  28                                  struct clk *bypassee,
  29                                  const struct clk_ops *bypassee_ops,
  30                                  struct clk *alt);
  31 #endif /* K210_BYPASS_H */