drivers/clk/mediatek/clk-gate.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2014 MediaTek Inc.
   4  * Author: James Liao <jamesjj.liao@mediatek.com>
   5  */
   6
   7 #ifndef __DRV_CLK_GATE_H
   8 #define __DRV_CLK_GATE_H
   9
  10 #include <linux/regmap.h>
  11 #include <linux/clk-provider.h>
  12
  13 struct clk;
  14
  15 struct mtk_clk_gate {
  16         struct clk_hw   hw;
  17         struct regmap   *regmap;
  18         int             set_ofs;
  19         int             clr_ofs;
  20         int             sta_ofs;
  21         u8              bit;
  22 };
  23
  24 static inline struct mtk_clk_gate *to_mtk_clk_gate(struct clk_hw *hw)
  25 {
  26         return container_of(hw, struct mtk_clk_gate, hw);
  27 }
  28
  29 extern const struct clk_ops mtk_clk_gate_ops_setclr;
  30 extern const struct clk_ops mtk_clk_gate_ops_setclr_inv;
  31 extern const struct clk_ops mtk_clk_gate_ops_no_setclr;
  32 extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv;
  33
  34 struct clk *mtk_clk_register_gate(
  35                 const char *name,
  36                 const char *parent_name,
  37                 struct regmap *regmap,
  38                 int set_ofs,
  39                 int clr_ofs,
  40                 int sta_ofs,
  41                 u8 bit,
  42                 const struct clk_ops *ops,
  43                 unsigned long flags);
  44
  45 #define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift,      \
  46                         _ops, _flags) {                         \
  47                 .id = _id,                                      \
  48                 .name = _name,                                  \
  49                 .parent_name = _parent,                         \
  50                 .regs = _regs,                                  \
  51                 .shift = _shift,                                \
  52                 .ops = _ops,                                    \
  53                 .flags = _flags,                                \
  54         }
  55
  56 #define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops)              \
  57         GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
  58
  59 #endif /* __DRV_CLK_GATE_H */