| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
|---|---|
| 2 | /* |
| 3 | * Toshiba Visconti clock controller |
| 4 | * |
| 5 | * Copyright (c) 2021 TOSHIBA CORPORATION |
| 6 | * Copyright (c) 2021 Toshiba Electronic Devices & Storage Corporation |
| 7 | * |
| 8 | * Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> |
| 9 | */ |
| 10 | |
| 11 | #ifndef _VISCONTI_CLKC_H_ |
| 12 | #define _VISCONTI_CLKC_H_ |
| 13 | |
| 14 | #include <linux/mfd/syscon.h> |
| 15 | #include <linux/clk-provider.h> |
| 16 | #include <linux/of.h> |
| 17 | #include <linux/of_address.h> |
| 18 | #include <linux/delay.h> |
| 19 | #include <linux/regmap.h> |
| 20 | #include <linux/slab.h> |
| 21 | #include <linux/string.h> |
| 22 | #include <linux/io.h> |
| 23 | #include <linux/spinlock.h> |
| 24 | |
| 25 | #include "reset.h" |
| 26 | |
| 27 | struct visconti_clk_provider { |
| 28 | struct device *dev; |
| 29 | struct regmap *regmap; |
| 30 | struct clk_hw_onecell_data clk_data; |
| 31 | }; |
| 32 | |
| 33 | struct visconti_clk_gate_table { |
| 34 | unsigned int id; |
| 35 | const char *name; |
| 36 | const struct clk_parent_data *parent_data; |
| 37 | u8 num_parents; |
| 38 | u8 flags; |
| 39 | u32 ckon_offset; |
| 40 | u32 ckoff_offset; |
| 41 | u8 ck_idx; |
| 42 | unsigned int div; |
| 43 | u8 rs_id; |
| 44 | }; |
| 45 | |
| 46 | struct visconti_fixed_clk { |
| 47 | unsigned int id; |
| 48 | const char *name; |
| 49 | const char *parent; |
| 50 | unsigned long flag; |
| 51 | unsigned int mult; |
| 52 | unsigned int div; |
| 53 | }; |
| 54 | |
| 55 | struct visconti_clk_gate { |
| 56 | struct clk_hw hw; |
| 57 | struct regmap *regmap; |
| 58 | u32 ckon_offset; |
| 59 | u32 ckoff_offset; |
| 60 | u8 ck_idx; |
| 61 | u8 flags; |
| 62 | u32 rson_offset; |
| 63 | u32 rsoff_offset; |
| 64 | u8 rs_idx; |
| 65 | spinlock_t *lock; |
| 66 | }; |
| 67 | |
| 68 | struct visconti_clk_provider *visconti_init_clk(struct device *dev, |
| 69 | struct regmap *regmap, |
| 70 | unsigned long nr_clks); |
| 71 | int visconti_clk_register_gates(struct visconti_clk_provider *data, |
| 72 | const struct visconti_clk_gate_table *clks, |
| 73 | int num_gate, |
| 74 | const struct visconti_reset_data *reset, |
| 75 | spinlock_t *lock); |
| 76 | |
| 77 | #define NO_RESET 0xFF |
| 78 | |
| 79 | #endif /* _VISCONTI_CLKC_H_ */ |
| 80 |