diff options
Diffstat (limited to 'sound/soc/codecs/rl6231.h')
| -rw-r--r-- | sound/soc/codecs/rl6231.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sound/soc/codecs/rl6231.h b/sound/soc/codecs/rl6231.h new file mode 100644 index 0000000000..9280827508 --- /dev/null +++ b/sound/soc/codecs/rl6231.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * rl6231.h - RL6231 class device shared support + * + * Copyright 2014 Realtek Semiconductor Corp. + * + * Author: Oder Chiou <oder_chiou@realtek.com> + */ + +#ifndef __RL6231_H__ +#define __RL6231_H__ + +#define RL6231_PLL_INP_MAX 50000000 +#define RL6231_PLL_INP_MIN 256000 +#define RL6231_PLL_N_MAX 0x1ff +#define RL6231_PLL_K_MAX 0x1f +#define RL6231_PLL_M_MAX 0xf + +struct rl6231_pll_code { + bool m_bp; /* Indicates bypass m code or not. */ + bool k_bp; /* Indicates bypass k code or not. */ + int m_code; + int n_code; + int k_code; +}; + +int rl6231_calc_dmic_clk(int rate); +int rl6231_pll_calc(const unsigned int freq_in, + const unsigned int freq_out, struct rl6231_pll_code *pll_code); +int rl6231_get_clk_info(int sclk, int rate); +int rl6231_get_pre_div(struct regmap *map, unsigned int reg, int sft); + +#endif /* __RL6231_H__ */ |