include/linux/regulator/lp872x.h

   1 /*
   2  * Copyright 2012 Texas Instruments
   3  *
   4  * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11
  12 #ifndef __LP872X_REGULATOR_H__
  13 #define __LP872X_REGULATOR_H__
  14
  15 #include <linux/regulator/machine.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/gpio.h>
  18
  19 #define LP872X_MAX_REGULATORS           9
  20
  21 #define LP8720_ENABLE_DELAY             200
  22 #define LP8725_ENABLE_DELAY             30000
  23
  24 enum lp872x_regulator_id {
  25         LP8720_ID_BASE,
  26         LP8720_ID_LDO1 = LP8720_ID_BASE,
  27         LP8720_ID_LDO2,
  28         LP8720_ID_LDO3,
  29         LP8720_ID_LDO4,
  30         LP8720_ID_LDO5,
  31         LP8720_ID_BUCK,
  32
  33         LP8725_ID_BASE,
  34         LP8725_ID_LDO1 = LP8725_ID_BASE,
  35         LP8725_ID_LDO2,
  36         LP8725_ID_LDO3,
  37         LP8725_ID_LDO4,
  38         LP8725_ID_LDO5,
  39         LP8725_ID_LILO1,
  40         LP8725_ID_LILO2,
  41         LP8725_ID_BUCK1,
  42         LP8725_ID_BUCK2,
  43
  44         LP872X_ID_MAX,
  45 };
  46
  47 enum lp872x_dvs_state {
  48         DVS_LOW  = GPIOF_OUT_INIT_LOW,
  49         DVS_HIGH = GPIOF_OUT_INIT_HIGH,
  50 };
  51
  52 enum lp872x_dvs_sel {
  53         SEL_V1,
  54         SEL_V2,
  55 };
  56
  57 /**
  58  * lp872x_dvs
  59  * @gpio       : gpio pin number for dvs control
  60  * @vsel       : dvs selector for buck v1 or buck v2 register
  61  * @init_state : initial dvs pin state
  62  */
  63 struct lp872x_dvs {
  64         int gpio;
  65         enum lp872x_dvs_sel vsel;
  66         enum lp872x_dvs_state init_state;
  67 };
  68
  69 /**
  70  * lp872x_regdata
  71  * @id        : regulator id
  72  * @init_data : init data for each regulator
  73  */
  74 struct lp872x_regulator_data {
  75         enum lp872x_regulator_id id;
  76         struct regulator_init_data *init_data;
  77 };
  78
  79 /**
  80  * lp872x_platform_data
  81  * @general_config    : the value of LP872X_GENERAL_CFG register
  82  * @update_config     : if LP872X_GENERAL_CFG register is updated, set true
  83  * @regulator_data    : platform regulator id and init data
  84  * @dvs               : dvs data for buck voltage control
  85  * @enable_gpio       : gpio pin number for enable control
  86  */
  87 struct lp872x_platform_data {
  88         u8 general_config;
  89         bool update_config;
  90         struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS];
  91         struct lp872x_dvs *dvs;
  92         int enable_gpio;
  93 };
  94
  95 #endif