drivers/clk/sunxi-ng/ccu_frac.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2016 Maxime Ripard. All rights reserved.
   4  */
   5
   6 #ifndef _CCU_FRAC_H_
   7 #define _CCU_FRAC_H_
   8
   9 #include <linux/clk-provider.h>
  10
  11 #include "ccu_common.h"
  12
  13 struct ccu_frac_internal {
  14         u32             enable;
  15         u32             select;
  16
  17         unsigned long   rates[2];
  18 };
  19
  20 #define _SUNXI_CCU_FRAC(_enable, _select, _rate1, _rate2)               \
  21         {                                                               \
  22                 .enable = _enable,                                      \
  23                 .select = _select,                                      \
  24                 .rates = { _rate1, _rate2 },                            \
  25         }
  26
  27 bool ccu_frac_helper_is_enabled(struct ccu_common *common,
  28                                 struct ccu_frac_internal *cf);
  29 void ccu_frac_helper_enable(struct ccu_common *common,
  30                             struct ccu_frac_internal *cf);
  31 void ccu_frac_helper_disable(struct ccu_common *common,
  32                              struct ccu_frac_internal *cf);
  33
  34 bool ccu_frac_helper_has_rate(struct ccu_common *common,
  35                               struct ccu_frac_internal *cf,
  36                               unsigned long rate);
  37
  38 unsigned long ccu_frac_helper_read_rate(struct ccu_common *common,
  39                                         struct ccu_frac_internal *cf);
  40
  41 int ccu_frac_helper_set_rate(struct ccu_common *common,
  42                              struct ccu_frac_internal *cf,
  43                              unsigned long rate, u32 lock);
  44
  45 #endif /* _CCU_FRAC_H_ */