1 /* 2 * fan53555.h - Fairchild Regulator FAN53555 Driver 3 * 4 * Copyright (C) 2012 Marvell Technology Ltd. 5 * Yunfan Zhang <yfzhang@marvell.com> 6 * 7 * This package is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 */ 12 13 #ifndef __FAN53555_H__ 14 #define __FAN53555_H__ 15 16 /* VSEL ID */ 17 enum { 18 FAN53555_VSEL_ID_0 = 0, 19 FAN53555_VSEL_ID_1, 20 }; 21 22 /* Transition slew rate limiting from a low to high voltage. 23 * ----------------------- 24 * Bin |Slew Rate(mV/uS) 25 * ------|---------------- 26 * 000 | 64.00 27 * ------|---------------- 28 * 001 | 32.00 29 * ------|---------------- 30 * 010 | 16.00 31 * ------|---------------- 32 * 011 | 8.00 33 * ------|---------------- 34 * 100 | 4.00 35 * ------|---------------- 36 * 101 | 2.00 37 * ------|---------------- 38 * 110 | 1.00 39 * ------|---------------- 40 * 111 | 0.50 41 * ----------------------- 42 */ 43 enum { 44 FAN53555_SLEW_RATE_64MV = 0, 45 FAN53555_SLEW_RATE_32MV, 46 FAN53555_SLEW_RATE_16MV, 47 FAN53555_SLEW_RATE_8MV, 48 FAN53555_SLEW_RATE_4MV, 49 FAN53555_SLEW_RATE_2MV, 50 FAN53555_SLEW_RATE_1MV, 51 FAN53555_SLEW_RATE_0_5MV, 52 }; 53 54 struct fan53555_platform_data { 55 struct regulator_init_data *regulator; 56 unsigned int slew_rate; 57 /* Sleep VSEL ID */ 58 unsigned int sleep_vsel_id; 59 }; 60 61 #endif /* __FAN53555_H__ */ 62