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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* Copyright 2022 William Breathitt Gray */ | |
3 | #ifndef _I8255_H_ | |
4 | #define _I8255_H_ | |
5 | ||
0b7c490d WBG |
6 | struct device; |
7 | struct irq_domain; | |
8 | struct regmap; | |
9 | ||
10 | #define i8255_volatile_regmap_range(_base) regmap_reg_range(_base, _base + 0x2) | |
11 | ||
12 | /** | |
13 | * struct i8255_regmap_config - Configuration for the register map of an i8255 | |
14 | * @parent: parent device | |
15 | * @map: regmap for the i8255 | |
16 | * @num_ppi: number of i8255 Programmable Peripheral Interface | |
17 | * @names: (optional) array of names for gpios | |
18 | * @domain: (optional) IRQ domain if the controller is interrupt-capable | |
19 | * | |
20 | * Note: The regmap is expected to have cache enabled and i8255 control | |
21 | * registers not marked as volatile. | |
22 | */ | |
23 | struct i8255_regmap_config { | |
24 | struct device *parent; | |
25 | struct regmap *map; | |
26 | int num_ppi; | |
27 | const char *const *names; | |
28 | struct irq_domain *domain; | |
29 | }; | |
30 | ||
31 | int devm_i8255_regmap_register(struct device *dev, | |
32 | const struct i8255_regmap_config *config); | |
33 | ||
fb38af4a | 34 | #endif /* _I8255_H_ */ |