From 71c7a2d675c8fe9b6ab284dcf586f30a7109c96c Mon Sep 17 00:00:00 2001 From: Oder Chiou Date: Tue, 20 May 2014 15:01:54 +0800 Subject: ASoC: rt5640: Add the function of the PLL clock calculation to RL6231 shared support The patch adds the function of the PLL clock calculation to RL6231 shared support. Signed-off-by: Oder Chiou Signed-off-by: Mark Brown --- sound/soc/codecs/rl6231.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'sound/soc/codecs/rl6231.h') diff --git a/sound/soc/codecs/rl6231.h b/sound/soc/codecs/rl6231.h index 00032dba1aa9..efdfc869afe9 100644 --- a/sound/soc/codecs/rl6231.h +++ b/sound/soc/codecs/rl6231.h @@ -13,6 +13,21 @@ #ifndef __RL6231_H__ #define __RL6231_H__ +#define RL6231_PLL_INP_MAX 40000000 +#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. */ + 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); #endif /* __RL6231_H__ */ -- cgit v1.2.3