linux/include/linux/mfd/max8925.h
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   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Maxim8925 Interface
   4 *
   5 * Copyright (C) 2009 Marvell International Ltd.
   6 *      Haojian Zhuang <haojian.zhuang@marvell.com>
   7 */
   8
   9#ifndef __LINUX_MFD_MAX8925_H
  10#define __LINUX_MFD_MAX8925_H
  11
  12#include <linux/mutex.h>
  13#include <linux/interrupt.h>
  14
  15/* Unified sub device IDs for MAX8925 */
  16enum {
  17        MAX8925_ID_SD1,
  18        MAX8925_ID_SD2,
  19        MAX8925_ID_SD3,
  20        MAX8925_ID_LDO1,
  21        MAX8925_ID_LDO2,
  22        MAX8925_ID_LDO3,
  23        MAX8925_ID_LDO4,
  24        MAX8925_ID_LDO5,
  25        MAX8925_ID_LDO6,
  26        MAX8925_ID_LDO7,
  27        MAX8925_ID_LDO8,
  28        MAX8925_ID_LDO9,
  29        MAX8925_ID_LDO10,
  30        MAX8925_ID_LDO11,
  31        MAX8925_ID_LDO12,
  32        MAX8925_ID_LDO13,
  33        MAX8925_ID_LDO14,
  34        MAX8925_ID_LDO15,
  35        MAX8925_ID_LDO16,
  36        MAX8925_ID_LDO17,
  37        MAX8925_ID_LDO18,
  38        MAX8925_ID_LDO19,
  39        MAX8925_ID_LDO20,
  40        MAX8925_ID_MAX,
  41};
  42
  43enum {
  44        /*
  45         * Charging current threshold trigger going from fast charge
  46         * to TOPOFF charge. From 5% to 20% of fasting charging current.
  47         */
  48        MAX8925_TOPOFF_THR_5PER,
  49        MAX8925_TOPOFF_THR_10PER,
  50        MAX8925_TOPOFF_THR_15PER,
  51        MAX8925_TOPOFF_THR_20PER,
  52};
  53
  54enum {
  55        /* Fast charging current */
  56        MAX8925_FCHG_85MA,
  57        MAX8925_FCHG_300MA,
  58        MAX8925_FCHG_460MA,
  59        MAX8925_FCHG_600MA,
  60        MAX8925_FCHG_700MA,
  61        MAX8925_FCHG_800MA,
  62        MAX8925_FCHG_900MA,
  63        MAX8925_FCHG_1000MA,
  64};
  65
  66/* Charger registers */
  67#define MAX8925_CHG_IRQ1                (0x7e)
  68#define MAX8925_CHG_IRQ2                (0x7f)
  69#define MAX8925_CHG_IRQ1_MASK           (0x80)
  70#define MAX8925_CHG_IRQ2_MASK           (0x81)
  71#define MAX8925_CHG_STATUS              (0x82)
  72
  73/* GPM registers */
  74#define MAX8925_SYSENSEL                (0x00)
  75#define MAX8925_ON_OFF_IRQ1             (0x01)
  76#define MAX8925_ON_OFF_IRQ1_MASK        (0x02)
  77#define MAX8925_ON_OFF_STATUS           (0x03)
  78#define MAX8925_ON_OFF_IRQ2             (0x0d)
  79#define MAX8925_ON_OFF_IRQ2_MASK        (0x0e)
  80#define MAX8925_RESET_CNFG              (0x0f)
  81
  82/* Touch registers */
  83#define MAX8925_TSC_IRQ                 (0x00)
  84#define MAX8925_TSC_IRQ_MASK            (0x01)
  85#define MAX8925_TSC_CNFG1               (0x02)
  86#define MAX8925_ADC_SCHED               (0x10)
  87#define MAX8925_ADC_RES_END             (0x6f)
  88
  89#define MAX8925_NREF_OK                 (1 << 4)
  90
  91/* RTC registers */
  92#define MAX8925_ALARM0_CNTL             (0x18)
  93#define MAX8925_ALARM1_CNTL             (0x19)
  94#define MAX8925_RTC_IRQ                 (0x1c)
  95#define MAX8925_RTC_IRQ_MASK            (0x1d)
  96#define MAX8925_MPL_CNTL                (0x1e)
  97
  98/* WLED registers */
  99#define MAX8925_WLED_MODE_CNTL          (0x84)
 100#define MAX8925_WLED_CNTL               (0x85)
 101
 102/* MAX8925 Registers */
 103#define MAX8925_SDCTL1                  (0x04)
 104#define MAX8925_SDCTL2                  (0x07)
 105#define MAX8925_SDCTL3                  (0x0A)
 106#define MAX8925_SDV1                    (0x06)
 107#define MAX8925_SDV2                    (0x09)
 108#define MAX8925_SDV3                    (0x0C)
 109#define MAX8925_LDOCTL1                 (0x18)
 110#define MAX8925_LDOCTL2                 (0x1C)
 111#define MAX8925_LDOCTL3                 (0x20)
 112#define MAX8925_LDOCTL4                 (0x24)
 113#define MAX8925_LDOCTL5                 (0x28)
 114#define MAX8925_LDOCTL6                 (0x2C)
 115#define MAX8925_LDOCTL7                 (0x30)
 116#define MAX8925_LDOCTL8                 (0x34)
 117#define MAX8925_LDOCTL9                 (0x38)
 118#define MAX8925_LDOCTL10                (0x3C)
 119#define MAX8925_LDOCTL11                (0x40)
 120#define MAX8925_LDOCTL12                (0x44)
 121#define MAX8925_LDOCTL13                (0x48)
 122#define MAX8925_LDOCTL14                (0x4C)
 123#define MAX8925_LDOCTL15                (0x50)
 124#define MAX8925_LDOCTL16                (0x10)
 125#define MAX8925_LDOCTL17                (0x14)
 126#define MAX8925_LDOCTL18                (0x72)
 127#define MAX8925_LDOCTL19                (0x5C)
 128#define MAX8925_LDOCTL20                (0x9C)
 129#define MAX8925_LDOVOUT1                (0x1A)
 130#define MAX8925_LDOVOUT2                (0x1E)
 131#define MAX8925_LDOVOUT3                (0x22)
 132#define MAX8925_LDOVOUT4                (0x26)
 133#define MAX8925_LDOVOUT5                (0x2A)
 134#define MAX8925_LDOVOUT6                (0x2E)
 135#define MAX8925_LDOVOUT7                (0x32)
 136#define MAX8925_LDOVOUT8                (0x36)
 137#define MAX8925_LDOVOUT9                (0x3A)
 138#define MAX8925_LDOVOUT10               (0x3E)
 139#define MAX8925_LDOVOUT11               (0x42)
 140#define MAX8925_LDOVOUT12               (0x46)
 141#define MAX8925_LDOVOUT13               (0x4A)
 142#define MAX8925_LDOVOUT14               (0x4E)
 143#define MAX8925_LDOVOUT15               (0x52)
 144#define MAX8925_LDOVOUT16               (0x12)
 145#define MAX8925_LDOVOUT17               (0x16)
 146#define MAX8925_LDOVOUT18               (0x74)
 147#define MAX8925_LDOVOUT19               (0x5E)
 148#define MAX8925_LDOVOUT20               (0x9E)
 149
 150/* bit definitions */
 151#define CHG_IRQ1_MASK                   (0x07)
 152#define CHG_IRQ2_MASK                   (0xff)
 153#define ON_OFF_IRQ1_MASK                (0xff)
 154#define ON_OFF_IRQ2_MASK                (0x03)
 155#define TSC_IRQ_MASK                    (0x03)
 156#define RTC_IRQ_MASK                    (0x0c)
 157
 158#define MAX8925_NAME_SIZE               (32)
 159
 160/* IRQ definitions */
 161enum {
 162        MAX8925_IRQ_VCHG_DC_OVP,
 163        MAX8925_IRQ_VCHG_DC_F,
 164        MAX8925_IRQ_VCHG_DC_R,
 165        MAX8925_IRQ_VCHG_THM_OK_R,
 166        MAX8925_IRQ_VCHG_THM_OK_F,
 167        MAX8925_IRQ_VCHG_SYSLOW_F,
 168        MAX8925_IRQ_VCHG_SYSLOW_R,
 169        MAX8925_IRQ_VCHG_RST,
 170        MAX8925_IRQ_VCHG_DONE,
 171        MAX8925_IRQ_VCHG_TOPOFF,
 172        MAX8925_IRQ_VCHG_TMR_FAULT,
 173        MAX8925_IRQ_GPM_RSTIN,
 174        MAX8925_IRQ_GPM_MPL,
 175        MAX8925_IRQ_GPM_SW_3SEC,
 176        MAX8925_IRQ_GPM_EXTON_F,
 177        MAX8925_IRQ_GPM_EXTON_R,
 178        MAX8925_IRQ_GPM_SW_1SEC,
 179        MAX8925_IRQ_GPM_SW_F,
 180        MAX8925_IRQ_GPM_SW_R,
 181        MAX8925_IRQ_GPM_SYSCKEN_F,
 182        MAX8925_IRQ_GPM_SYSCKEN_R,
 183        MAX8925_IRQ_RTC_ALARM1,
 184        MAX8925_IRQ_RTC_ALARM0,
 185        MAX8925_IRQ_TSC_STICK,
 186        MAX8925_IRQ_TSC_NSTICK,
 187        MAX8925_NR_IRQS,
 188};
 189
 190
 191
 192struct max8925_chip {
 193        struct device           *dev;
 194        struct i2c_client       *i2c;
 195        struct i2c_client       *adc;
 196        struct i2c_client       *rtc;
 197        struct mutex            io_lock;
 198        struct mutex            irq_lock;
 199
 200        int                     irq_base;
 201        int                     core_irq;
 202        int                     tsc_irq;
 203        unsigned int            wakeup_flag;
 204};
 205
 206struct max8925_backlight_pdata {
 207        int     lxw_scl;        /* 0/1 -- 0.8Ohm/0.4Ohm */
 208        int     lxw_freq;       /* 700KHz ~ 1400KHz */
 209        int     dual_string;    /* 0/1 -- single/dual string */
 210};
 211
 212struct max8925_touch_pdata {
 213        unsigned int            flags;
 214};
 215
 216struct max8925_power_pdata {
 217        int             (*set_charger)(int);
 218        unsigned        batt_detect:1;
 219        unsigned        topoff_threshold:2;
 220        unsigned        fast_charge:3;  /* charge current */
 221        unsigned        no_temp_support:1; /* set if no temperature detect */
 222        unsigned        no_insert_detect:1; /* set if no ac insert detect */
 223        char            **supplied_to;
 224        int             num_supplicants;
 225};
 226
 227/*
 228 * irq_base: stores IRQ base number of MAX8925 in platform
 229 * tsc_irq: stores IRQ number of MAX8925 TSC
 230 */
 231struct max8925_platform_data {
 232        struct max8925_backlight_pdata  *backlight;
 233        struct max8925_touch_pdata      *touch;
 234        struct max8925_power_pdata      *power;
 235        struct regulator_init_data      *sd1;
 236        struct regulator_init_data      *sd2;
 237        struct regulator_init_data      *sd3;
 238        struct regulator_init_data      *ldo1;
 239        struct regulator_init_data      *ldo2;
 240        struct regulator_init_data      *ldo3;
 241        struct regulator_init_data      *ldo4;
 242        struct regulator_init_data      *ldo5;
 243        struct regulator_init_data      *ldo6;
 244        struct regulator_init_data      *ldo7;
 245        struct regulator_init_data      *ldo8;
 246        struct regulator_init_data      *ldo9;
 247        struct regulator_init_data      *ldo10;
 248        struct regulator_init_data      *ldo11;
 249        struct regulator_init_data      *ldo12;
 250        struct regulator_init_data      *ldo13;
 251        struct regulator_init_data      *ldo14;
 252        struct regulator_init_data      *ldo15;
 253        struct regulator_init_data      *ldo16;
 254        struct regulator_init_data      *ldo17;
 255        struct regulator_init_data      *ldo18;
 256        struct regulator_init_data      *ldo19;
 257        struct regulator_init_data      *ldo20;
 258
 259        int             irq_base;
 260        int             tsc_irq;
 261};
 262
 263extern int max8925_reg_read(struct i2c_client *, int);
 264extern int max8925_reg_write(struct i2c_client *, int, unsigned char);
 265extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *);
 266extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
 267extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
 268                        unsigned char);
 269
 270extern int max8925_device_init(struct max8925_chip *,
 271                                struct max8925_platform_data *);
 272extern void max8925_device_exit(struct max8925_chip *);
 273#endif /* __LINUX_MFD_MAX8925_H */
 274
 275