Nobuhiro Iwamatsu | b4cbe60 | 2021-10-25 12:10:37 +0900 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * Copyright (c) 2021 TOSHIBA CORPORATION |
| 4 | * Copyright (c) 2021 Toshiba Electronic Devices & Storage Corporation |
| 5 | * |
| 6 | * Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> |
| 7 | */ |
| 8 | |
| 9 | #ifndef _VISCONTI_PLL_H_ |
| 10 | #define _VISCONTI_PLL_H_ |
| 11 | |
| 12 | #include <linux/clk-provider.h> |
| 13 | #include <linux/regmap.h> |
| 14 | #include <linux/spinlock.h> |
| 15 | |
| 16 | struct visconti_pll_provider { |
| 17 | void __iomem *reg_base; |
| 18 | struct regmap *regmap; |
| 19 | struct clk_hw_onecell_data clk_data; |
| 20 | struct device_node *node; |
| 21 | }; |
| 22 | |
| 23 | #define VISCONTI_PLL_RATE(_rate, _dacen, _dsmen, \ |
| 24 | _refdiv, _intin, _fracin, _postdiv1, _postdiv2) \ |
| 25 | { \ |
| 26 | .rate = _rate, \ |
| 27 | .dacen = _dacen, \ |
| 28 | .dsmen = _dsmen, \ |
| 29 | .refdiv = _refdiv, \ |
| 30 | .intin = _intin, \ |
| 31 | .fracin = _fracin, \ |
| 32 | .postdiv1 = _postdiv1, \ |
| 33 | .postdiv2 = _postdiv2 \ |
| 34 | } |
| 35 | |
| 36 | struct visconti_pll_rate_table { |
| 37 | unsigned long rate; |
| 38 | unsigned int dacen; |
| 39 | unsigned int dsmen; |
| 40 | unsigned int refdiv; |
| 41 | unsigned long intin; |
| 42 | unsigned long fracin; |
| 43 | unsigned int postdiv1; |
| 44 | unsigned int postdiv2; |
| 45 | }; |
| 46 | |
| 47 | struct visconti_pll_info { |
| 48 | unsigned int id; |
| 49 | const char *name; |
| 50 | const char *parent; |
| 51 | unsigned long base_reg; |
| 52 | const struct visconti_pll_rate_table *rate_table; |
| 53 | }; |
| 54 | |
| 55 | struct visconti_pll_provider * __init visconti_init_pll(struct device_node *np, |
| 56 | void __iomem *base, |
| 57 | unsigned long nr_plls); |
| 58 | void visconti_register_plls(struct visconti_pll_provider *ctx, |
| 59 | const struct visconti_pll_info *list, |
| 60 | unsigned int nr_plls, spinlock_t *lock); |
| 61 | |
| 62 | #endif /* _VISCONTI_PLL_H_ */ |