| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 40000000 |
| 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 | int m_code; |
| 22 | int n_code; |
| 23 | int k_code; |
| 24 | }; |
| 25 | |
| 26 | int rl6231_calc_dmic_clk(int rate); |
| 27 | int rl6231_pll_calc(const unsigned int freq_in, |
| 28 | const unsigned int freq_out, struct rl6231_pll_code *pll_code); |
| 29 | int rl6231_get_clk_info(int sclk, int rate); |
| 30 | int rl6231_get_pre_div(struct regmap *map, unsigned int reg, int sft); |
| 31 | |
| 32 | #endif /* __RL6231_H__ */ |