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drivers/clk/sunxi-ng/ccu_nk.h 1.75 KB
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  /*
   * Copyright (c) 2016 Maxime Ripard. All rights reserved.
   *
   * This software is licensed under the terms of the GNU General Public
   * License version 2, as published by the Free Software Foundation, and
   * may be copied, distributed, and modified under those terms.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   */
  
  #ifndef _CCU_NK_H_
  #define _CCU_NK_H_
  
  #include <linux/clk-provider.h>
  
  #include "ccu_common.h"
  #include "ccu_div.h"
  #include "ccu_mult.h"
  
  /*
   * struct ccu_nk - Definition of an N-K clock
   *
   * Clocks based on the formula parent * N * K
   */
  struct ccu_nk {
  	u16			reg;
  	u32			enable;
  	u32			lock;
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  	struct ccu_mult_internal	n;
  	struct ccu_mult_internal	k;
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  	unsigned int		fixed_post_div;
  
  	struct ccu_common	common;
  };
  
  #define SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(_struct, _name, _parent, _reg, \
  					    _nshift, _nwidth,		\
  					    _kshift, _kwidth,		\
  					    _gate, _lock, _postdiv,	\
  					    _flags)			\
  	struct ccu_nk _struct = {					\
  		.enable		= _gate,				\
  		.lock		= _lock,				\
  		.k		= _SUNXI_CCU_MULT(_kshift, _kwidth),	\
  		.n		= _SUNXI_CCU_MULT(_nshift, _nwidth),	\
  		.fixed_post_div	= _postdiv,				\
  		.common		= {					\
  			.reg		= _reg,				\
  			.features	= CCU_FEATURE_FIXED_POSTDIV,	\
  			.hw.init	= CLK_HW_INIT(_name,		\
  						      _parent,		\
  						      &ccu_nk_ops,	\
  						      _flags),		\
  		},							\
  	}
  
  static inline struct ccu_nk *hw_to_ccu_nk(struct clk_hw *hw)
  {
  	struct ccu_common *common = hw_to_ccu_common(hw);
  
  	return container_of(common, struct ccu_nk, common);
  }
  
  extern const struct clk_ops ccu_nk_ops;
  
  #endif /* _CCU_NK_H_ */