include/linux/regulator/fan53555.h

   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__ */