LXR linux/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
  22struct 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
  29int rl6231_calc_dmic_clk(int rate);
  30int rl6231_pll_calc(const unsigned int freq_in,
  31        const unsigned int freq_out, struct rl6231_pll_code *pll_code);
  32int rl6231_get_clk_info(int sclk, int rate);
  33int rl6231_get_pre_div(struct regmap *map, unsigned int reg, int sft);
  34
  35#endif /* __RL6231_H__ */
  36