LXR linux/drivers/clk/sunxi-ng/ccu

   1/*
   2 * Copyright (c) 2016 Maxime Ripard. All rights reserved.
   3 *
   4 * This software is licensed under the terms of the GNU General Public
   5 * License version 2, as published by the Free Software Foundation, and
   6 * may be copied, distributed, and modified under those terms.
   7 *
   8 * This program is distributed in the hope that it will be useful,
   9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 * GNU General Public License for more details.
  12 */
  13
  14#ifndef _CCU_NKMP_H_
  15#define _CCU_NKMP_H_
  16
  17#include <linux/clk-provider.h>
  18
  19#include "ccu_common.h"
  20#include "ccu_div.h"
  21#include "ccu_mult.h"
  22
  23/*
  24 * struct ccu_nkmp - Definition of an N-K-M-P clock
  25 *
  26 * Clocks based on the formula parent * N * K >> P / M
  27 */
  28struct ccu_nkmp {
  29        u32                     enable;
  30        u32                     lock;
  31
  32        struct ccu_mult_internal        n;
  33        struct ccu_mult_internal        k;
  34        struct ccu_div_internal         m;
  35        struct ccu_div_internal         p;
  36
  37        unsigned int            fixed_post_div;
  38
  39        struct ccu_common       common;
  40};
  41
  42#define SUNXI_CCU_NKMP_WITH_GATE_LOCK(_struct, _name, _parent, _reg,    \
  43                                      _nshift, _nwidth,                 \
  44                                      _kshift, _kwidth,                 \
  45                                      _mshift, _mwidth,                 \
  46                                      _pshift, _pwidth,                 \
  47                                      _gate, _lock, _flags)             \
  48        struct ccu_nkmp _struct = {                                     \
  49                .enable         = _gate,                                \
  50                .lock           = _lock,                                \
  51                .n              = _SUNXI_CCU_MULT(_nshift, _nwidth),    \
  52                .k              = _SUNXI_CCU_MULT(_kshift, _kwidth),    \
  53                .m              = _SUNXI_CCU_DIV(_mshift, _mwidth),     \
  54                .p              = _SUNXI_CCU_DIV(_pshift, _pwidth),     \
  55                .common         = {                                     \
  56                        .reg            = _reg,                         \
  57                        .hw.init        = CLK_HW_INIT(_name,            \
  58                                                      _parent,          \
  59                                                      &ccu_nkmp_ops,    \
  60                                                      _flags),          \
  61                },                                                      \
  62        }
  63
  64static inline struct ccu_nkmp *hw_to_ccu_nkmp(struct clk_hw *hw)
  65{
  66        struct ccu_common *common = hw_to_ccu_common(hw);
  67
  68        return container_of(common, struct ccu_nkmp, common);
  69}
  70
  71extern const struct clk_ops ccu_nkmp_ops;
  72
  73#endif /* _CCU_NKMP_H_ */
  74