sound/soc/codecs/rl6231.h

   1 /*
   2  * rl6231.h - RL6231 class device shared support
   3  *
   4  * Copyright 2014 Realtek Semiconductor Corp.
   5  *
   6  * Author: Oder Chiou <oder_chiou@realtek.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #ifndef __RL6231_H__
  14 #define __RL6231_H__
  15
  16 #define RL6231_PLL_INP_MAX      40000000
  17 #define RL6231_PLL_INP_MIN      256000
  18 #define RL6231_PLL_N_MAX        0x1ff
  19 #define RL6231_PLL_K_MAX        0x1f
  20 #define RL6231_PLL_M_MAX        0xf
  21
  22 struct rl6231_pll_code {
  23         bool m_bp; /* Indicates bypass m code or not. */
  24         int m_code;
  25         int n_code;
  26         int k_code;
  27 };
  28
  29 int rl6231_calc_dmic_clk(int rate);
  30 int rl6231_pll_calc(const unsigned int freq_in,
  31         const unsigned int freq_out, struct rl6231_pll_code *pll_code);
  32 int rl6231_get_clk_info(int sclk, int rate);
  33 int rl6231_get_pre_div(struct regmap *map, unsigned int reg, int sft);
  34
  35 #endif /* __RL6231_H__ */