drivers/clk/sunxi-ng/ccu_gate.h

   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_GATE_H_
  15 #define _CCU_GATE_H_
  16
  17 #include <linux/clk-provider.h>
  18
  19 #include "ccu_common.h"
  20
  21 struct ccu_gate {
  22         u32                     enable;
  23
  24         struct ccu_common       common;
  25 };
  26
  27 #define SUNXI_CCU_GATE(_struct, _name, _parent, _reg, _gate, _flags)    \
  28         struct ccu_gate _struct = {                                     \
  29                 .enable = _gate,                                        \
  30                 .common = {                                             \
  31                         .reg            = _reg,                         \
  32                         .hw.init        = CLK_HW_INIT(_name,            \
  33                                                       _parent,          \
  34                                                       &ccu_gate_ops,    \
  35                                                       _flags),          \
  36                 }                                                       \
  37         }
  38
  39 static inline struct ccu_gate *hw_to_ccu_gate(struct clk_hw *hw)
  40 {
  41         struct ccu_common *common = hw_to_ccu_common(hw);
  42
  43         return container_of(common, struct ccu_gate, common);
  44 }
  45
  46 void ccu_gate_helper_disable(struct ccu_common *common, u32 gate);
  47 int ccu_gate_helper_enable(struct ccu_common *common, u32 gate);
  48 int ccu_gate_helper_is_enabled(struct ccu_common *common, u32 gate);
  49
  50 extern const struct clk_ops ccu_gate_ops;
  51
  52 #endif /* _CCU_GATE_H_ */