1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * rl6231.h - RL6231 class device shared support
4 *
5 * Copyright 2014 Realtek Semiconductor Corp.
6 *
7 * Author: Oder Chiou <oder_chiou@realtek.com>
8 */
9
10 #ifndef __RL6231_H__
11 #define __RL6231_H__
12
13 #define RL6231_PLL_INP_MAX 50000000
14 #define RL6231_PLL_INP_MIN 256000
15 #define RL6231_PLL_N_MAX 0x1ff
16 #define RL6231_PLL_K_MAX 0x1f
17 #define RL6231_PLL_M_MAX 0xf
18
19 struct rl6231_pll_code {
20 bool m_bp; /* Indicates bypass m code or not. */
21 bool k_bp; /* Indicates bypass k code or not. */
22 int m_code;
23 int n_code;
24 int k_code;
25 };
26
27 int rl6231_calc_dmic_clk(int rate);
28 int rl6231_pll_calc(const unsigned int freq_in,
29 const unsigned int freq_out, struct rl6231_pll_code *pll_code);
30 int rl6231_get_clk_info(int sclk, int rate);
31 int rl6231_get_pre_div(struct regmap *map, unsigned int reg, int sft);
32
33 #endif /* __RL6231_H__ */
34
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