1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * fan53555.h - Fairchild Regulator FAN53555 Driver
4 *
5 * Copyright (C) 2012 Marvell Technology Ltd.
6 * Yunfan Zhang <yfzhang@marvell.com>
7 */
8
9 #ifndef __FAN53555_H__
10 #define __FAN53555_H__
11
12 /* VSEL ID */
13 enum {
14 FAN53555_VSEL_ID_0 = 0,
15 FAN53555_VSEL_ID_1,
16 };
17
18 /* Transition slew rate limiting from a low to high voltage.
19 * -----------------------
20 * Bin |Slew Rate(mV/uS)
21 * ------|----------------
22 * 000 | 64.00
23 * ------|----------------
24 * 001 | 32.00
25 * ------|----------------
26 * 010 | 16.00
27 * ------|----------------
28 * 011 | 8.00
29 * ------|----------------
30 * 100 | 4.00
31 * ------|----------------
32 * 101 | 2.00
33 * ------|----------------
34 * 110 | 1.00
35 * ------|----------------
36 * 111 | 0.50
37 * -----------------------
38 */
39 enum {
40 FAN53555_SLEW_RATE_64MV = 0,
41 FAN53555_SLEW_RATE_32MV,
42 FAN53555_SLEW_RATE_16MV,
43 FAN53555_SLEW_RATE_8MV,
44 FAN53555_SLEW_RATE_4MV,
45 FAN53555_SLEW_RATE_2MV,
46 FAN53555_SLEW_RATE_1MV,
47 FAN53555_SLEW_RATE_0_5MV,
48 };
49
50 struct fan53555_platform_data {
51 struct regulator_init_data *regulator;
52 unsigned int slew_rate;
53 /* Sleep VSEL ID */
54 unsigned int sleep_vsel_id;
55 };
56
57 #endif /* __FAN53555_H__ */