1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright 2022 William Breathitt Gray */
3#ifndef _I8255_H_
4#define _I8255_H_
5
6struct device;
7struct irq_domain;
8struct 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 */
23struct 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
31int devm_i8255_regmap_register(struct device *dev,
32			       const struct i8255_regmap_config *config);
33
34#endif /* _I8255_H_ */
35