include/linux/mfd/max8925.h

   1 /*
   2  * Maxim8925 Interface
   3  *
   4  * Copyright (C) 2009 Marvell International Ltd.
   5  *      Haojian Zhuang <haojian.zhuang@marvell.com>
   6  *
   7  * This program 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 #ifndef __LINUX_MFD_MAX8925_H
  13 #define __LINUX_MFD_MAX8925_H
  14
  15 #include <linux/mutex.h>
  16 #include <linux/interrupt.h>
  17
  18 /* Unified sub device IDs for MAX8925 */
  19 enum {
  20         MAX8925_ID_SD1,
  21         MAX8925_ID_SD2,
  22         MAX8925_ID_SD3,
  23         MAX8925_ID_LDO1,
  24         MAX8925_ID_LDO2,
  25         MAX8925_ID_LDO3,
  26         MAX8925_ID_LDO4,
  27         MAX8925_ID_LDO5,
  28         MAX8925_ID_LDO6,
  29         MAX8925_ID_LDO7,
  30         MAX8925_ID_LDO8,
  31         MAX8925_ID_LDO9,
  32         MAX8925_ID_LDO10,
  33         MAX8925_ID_LDO11,
  34         MAX8925_ID_LDO12,
  35         MAX8925_ID_LDO13,
  36         MAX8925_ID_LDO14,
  37         MAX8925_ID_LDO15,
  38         MAX8925_ID_LDO16,
  39         MAX8925_ID_LDO17,
  40         MAX8925_ID_LDO18,
  41         MAX8925_ID_LDO19,
  42         MAX8925_ID_LDO20,
  43         MAX8925_ID_MAX,
  44 };
  45
  46 enum {
  47         /*
  48          * Charging current threshold trigger going from fast charge
  49          * to TOPOFF charge. From 5% to 20% of fasting charging current.
  50          */
  51         MAX8925_TOPOFF_THR_5PER,
  52         MAX8925_TOPOFF_THR_10PER,
  53         MAX8925_TOPOFF_THR_15PER,
  54         MAX8925_TOPOFF_THR_20PER,
  55 };
  56
  57 enum {
  58         /* Fast charging current */
  59         MAX8925_FCHG_85MA,
  60         MAX8925_FCHG_300MA,
  61         MAX8925_FCHG_460MA,
  62         MAX8925_FCHG_600MA,
  63         MAX8925_FCHG_700MA,
  64         MAX8925_FCHG_800MA,
  65         MAX8925_FCHG_900MA,
  66         MAX8925_FCHG_1000MA,
  67 };
  68
  69 /* Charger registers */
  70 #define MAX8925_CHG_IRQ1                (0x7e)
  71 #define MAX8925_CHG_IRQ2                (0x7f)
  72 #define MAX8925_CHG_IRQ1_MASK           (0x80)
  73 #define MAX8925_CHG_IRQ2_MASK           (0x81)
  74 #define MAX8925_CHG_STATUS              (0x82)
  75
  76 /* GPM registers */
  77 #define MAX8925_SYSENSEL                (0x00)
  78 #define MAX8925_ON_OFF_IRQ1             (0x01)
  79 #define MAX8925_ON_OFF_IRQ1_MASK        (0x02)
  80 #define MAX8925_ON_OFF_STATUS           (0x03)
  81 #define MAX8925_ON_OFF_IRQ2             (0x0d)
  82 #define MAX8925_ON_OFF_IRQ2_MASK        (0x0e)
  83 #define MAX8925_RESET_CNFG              (0x0f)
  84
  85 /* Touch registers */
  86 #define MAX8925_TSC_IRQ                 (0x00)
  87 #define MAX8925_TSC_IRQ_MASK            (0x01)
  88 #define MAX8925_TSC_CNFG1               (0x02)
  89 #define MAX8925_ADC_SCHED               (0x10)
  90 #define MAX8925_ADC_RES_END             (0x6f)
  91
  92 #define MAX8925_NREF_OK                 (1 << 4)
  93
  94 /* RTC registers */
  95 #define MAX8925_ALARM0_CNTL             (0x18)
  96 #define MAX8925_ALARM1_CNTL             (0x19)
  97 #define MAX8925_RTC_IRQ                 (0x1c)
  98 #define MAX8925_RTC_IRQ_MASK            (0x1d)
  99 #define MAX8925_MPL_CNTL                (0x1e)
 100
 101 /* WLED registers */
 102 #define MAX8925_WLED_MODE_CNTL          (0x84)
 103 #define MAX8925_WLED_CNTL               (0x85)
 104
 105 /* MAX8925 Registers */
 106 #define MAX8925_SDCTL1                  (0x04)
 107 #define MAX8925_SDCTL2                  (0x07)
 108 #define MAX8925_SDCTL3                  (0x0A)
 109 #define MAX8925_SDV1                    (0x06)
 110 #define MAX8925_SDV2                    (0x09)
 111 #define MAX8925_SDV3                    (0x0C)
 112 #define MAX8925_LDOCTL1                 (0x18)
 113 #define MAX8925_LDOCTL2                 (0x1C)
 114 #define MAX8925_LDOCTL3                 (0x20)
 115 #define MAX8925_LDOCTL4                 (0x24)
 116 #define MAX8925_LDOCTL5                 (0x28)
 117 #define MAX8925_LDOCTL6                 (0x2C)
 118 #define MAX8925_LDOCTL7                 (0x30)
 119 #define MAX8925_LDOCTL8                 (0x34)
 120 #define MAX8925_LDOCTL9                 (0x38)
 121 #define MAX8925_LDOCTL10                (0x3C)
 122 #define MAX8925_LDOCTL11                (0x40)
 123 #define MAX8925_LDOCTL12                (0x44)
 124 #define MAX8925_LDOCTL13                (0x48)
 125 #define MAX8925_LDOCTL14                (0x4C)
 126 #define MAX8925_LDOCTL15                (0x50)
 127 #define MAX8925_LDOCTL16                (0x10)
 128 #define MAX8925_LDOCTL17                (0x14)
 129 #define MAX8925_LDOCTL18                (0x72)
 130 #define MAX8925_LDOCTL19                (0x5C)
 131 #define MAX8925_LDOCTL20                (0x9C)
 132 #define MAX8925_LDOVOUT1                (0x1A)
 133 #define MAX8925_LDOVOUT2                (0x1E)
 134 #define MAX8925_LDOVOUT3                (0x22)
 135 #define MAX8925_LDOVOUT4                (0x26)
 136 #define MAX8925_LDOVOUT5                (0x2A)
 137 #define MAX8925_LDOVOUT6                (0x2E)
 138 #define MAX8925_LDOVOUT7                (0x32)
 139 #define MAX8925_LDOVOUT8                (0x36)
 140 #define MAX8925_LDOVOUT9                (0x3A)
 141 #define MAX8925_LDOVOUT10               (0x3E)
 142 #define MAX8925_LDOVOUT11               (0x42)
 143 #define MAX8925_LDOVOUT12               (0x46)
 144 #define MAX8925_LDOVOUT13               (0x4A)
 145 #define MAX8925_LDOVOUT14               (0x4E)
 146 #define MAX8925_LDOVOUT15               (0x52)
 147 #define MAX8925_LDOVOUT16               (0x12)
 148 #define MAX8925_LDOVOUT17               (0x16)
 149 #define MAX8925_LDOVOUT18               (0x74)
 150 #define MAX8925_LDOVOUT19               (0x5E)
 151 #define MAX8925_LDOVOUT20               (0x9E)
 152
 153 /* bit definitions */
 154 #define CHG_IRQ1_MASK                   (0x07)
 155 #define CHG_IRQ2_MASK                   (0xff)
 156 #define ON_OFF_IRQ1_MASK                (0xff)
 157 #define ON_OFF_IRQ2_MASK                (0x03)
 158 #define TSC_IRQ_MASK                    (0x03)
 159 #define RTC_IRQ_MASK                    (0x0c)
 160
 161 #define MAX8925_MAX_REGULATOR           (23)
 162
 163 #define MAX8925_NAME_SIZE               (32)
 164
 165 /* IRQ definitions */
 166 enum {
 167         MAX8925_IRQ_VCHG_DC_OVP,
 168         MAX8925_IRQ_VCHG_DC_F,
 169         MAX8925_IRQ_VCHG_DC_R,
 170         MAX8925_IRQ_VCHG_THM_OK_R,
 171         MAX8925_IRQ_VCHG_THM_OK_F,
 172         MAX8925_IRQ_VCHG_SYSLOW_F,
 173         MAX8925_IRQ_VCHG_SYSLOW_R,
 174         MAX8925_IRQ_VCHG_RST,
 175         MAX8925_IRQ_VCHG_DONE,
 176         MAX8925_IRQ_VCHG_TOPOFF,
 177         MAX8925_IRQ_VCHG_TMR_FAULT,
 178         MAX8925_IRQ_GPM_RSTIN,
 179         MAX8925_IRQ_GPM_MPL,
 180         MAX8925_IRQ_GPM_SW_3SEC,
 181         MAX8925_IRQ_GPM_EXTON_F,
 182         MAX8925_IRQ_GPM_EXTON_R,
 183         MAX8925_IRQ_GPM_SW_1SEC,
 184         MAX8925_IRQ_GPM_SW_F,
 185         MAX8925_IRQ_GPM_SW_R,
 186         MAX8925_IRQ_GPM_SYSCKEN_F,
 187         MAX8925_IRQ_GPM_SYSCKEN_R,
 188         MAX8925_IRQ_RTC_ALARM1,
 189         MAX8925_IRQ_RTC_ALARM0,
 190         MAX8925_IRQ_TSC_STICK,
 191         MAX8925_IRQ_TSC_NSTICK,
 192         MAX8925_NR_IRQS,
 193 };
 194
 195 struct max8925_chip {
 196         struct device           *dev;
 197         struct i2c_client       *i2c;
 198         struct i2c_client       *adc;
 199         struct i2c_client       *rtc;
 200         struct mutex            io_lock;
 201         struct mutex            irq_lock;
 202
 203         int                     irq_base;
 204         int                     core_irq;
 205         int                     tsc_irq;
 206
 207         unsigned int            wakeup_flag;
 208 };
 209
 210 struct max8925_backlight_pdata {
 211         int     lxw_scl;        /* 0/1 -- 0.8Ohm/0.4Ohm */
 212         int     lxw_freq;       /* 700KHz ~ 1400KHz */
 213         int     dual_string;    /* 0/1 -- single/dual string */
 214 };
 215
 216 struct max8925_touch_pdata {
 217         unsigned int            flags;
 218 };
 219
 220 struct max8925_power_pdata {
 221         int             (*set_charger)(int);
 222         unsigned        batt_detect:1;
 223         unsigned        topoff_threshold:2;
 224         unsigned        fast_charge:3;  /* charge current */
 225         unsigned        no_temp_support:1; /* set if no temperature detect */
 226         unsigned        no_insert_detect:1; /* set if no ac insert detect */
 227         char            **supplied_to;
 228         int             num_supplicants;
 229 };
 230
 231 /*
 232  * irq_base: stores IRQ base number of MAX8925 in platform
 233  * tsc_irq: stores IRQ number of MAX8925 TSC
 234  */
 235 struct max8925_platform_data {
 236         struct max8925_backlight_pdata  *backlight;
 237         struct max8925_touch_pdata      *touch;
 238         struct max8925_power_pdata      *power;
 239         struct regulator_init_data      *regulator[MAX8925_MAX_REGULATOR];
 240
 241         int             irq_base;
 242         int             tsc_irq;
 243 };
 244
 245 extern int max8925_reg_read(struct i2c_client *, int);
 246 extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
 247 extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
 248 extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
 249 extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
 250                         unsigned char);
 251
 252 extern int max8925_device_init(struct max8925_chip *,
 253                                 struct max8925_platform_data *);
 254 extern void max8925_device_exit(struct max8925_chip *);
 255 #endif /* __LINUX_MFD_MAX8925_H */
 256