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 */ 16 enum { 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 43 enum { 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 54 enum { 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 */ 161 enum { 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 }; 189 190 191 192 struct 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 }; 205 206 struct 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 }; 211 212 struct max8925_touch_pdata { 213 unsigned int flags; 214 }; 215 216 struct 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 */ 231 struct 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 }; 262 263 extern int max8925_reg_read(struct i2c_client *, int); 264 extern int max8925_reg_write(struct i2c_client *, int, unsigned char); 265 extern int max8925_bulk_read(struct i2c_client *, int, int, unsigned char *); 266 extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *); 267 extern int max8925_set_bits(struct i2c_client *, int, unsigned char, 268 unsigned char); 269 270 extern int max8925_device_init(struct max8925_chip *, 271 struct max8925_platform_data *); 272 extern void max8925_device_exit(struct max8925_chip *); 273 #endif /* __LINUX_MFD_MAX8925_H */ 274 275