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/types.h>
  11
  12 struct clk;
  13 struct clk_hw_onecell_data;
  14 struct clk_ops;
  15 struct device;
  16 struct device_node;
  17
  18 extern const struct clk_ops mtk_clk_gate_ops_setclr;
  19 extern const struct clk_ops mtk_clk_gate_ops_setclr_inv;
  20 extern const struct clk_ops mtk_clk_gate_ops_no_setclr;
  21 extern const struct clk_ops mtk_clk_gate_ops_no_setclr_inv;
  22
  23 struct mtk_gate_regs {
  24         u32 sta_ofs;
  25         u32 clr_ofs;
  26         u32 set_ofs;
  27 };
  28
  29 struct mtk_gate {
  30         int id;
  31         const char *name;
  32         const char *parent_name;
  33         const struct mtk_gate_regs *regs;
  34         int shift;
  35         const struct clk_ops *ops;
  36         unsigned long flags;
  37 };
  38
  39 #define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift,      \
  40                         _ops, _flags) {                         \
  41                 .id = _id,                                      \
  42                 .name = _name,                                  \
  43                 .parent_name = _parent,                         \
  44                 .regs = _regs,                                  \
  45                 .shift = _shift,                                \
  46                 .ops = _ops,                                    \
  47                 .flags = _flags,                                \
  48         }
  49
  50 #define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops)              \
  51         GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
  52
  53 int mtk_clk_register_gates(struct device *dev, struct device_node *node,
  54                            const struct mtk_gate *clks, int num,
  55                            struct clk_hw_onecell_data *clk_data);
  56
  57 void mtk_clk_unregister_gates(const struct mtk_gate *clks, int num,
  58                               struct clk_hw_onecell_data *clk_data);
  59
  60 #endif /* __DRV_CLK_GATE_H */