drivers/mfd/axp20x.c

   1 /*
   2  * axp20x.c - MFD core driver for the X-Powers' Power Management ICs
   3  *
   4  * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
   5  * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
   6  * as well as configurable GPIOs.
   7  *
   8  * Copyright (C) 2014 Carlo Caione
   9  *
  10  * Author: Carlo Caione <carlo@caione.org>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/err.h>
  18 #include <linux/i2c.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/kernel.h>
  21 #include <linux/module.h>
  22 #include <linux/pm_runtime.h>
  23 #include <linux/regmap.h>
  24 #include <linux/slab.h>
  25 #include <linux/regulator/consumer.h>
  26 #include <linux/mfd/axp20x.h>
  27 #include <linux/mfd/core.h>
  28 #include <linux/of_device.h>
  29 #include <linux/of_irq.h>
  30 #include <linux/acpi.h>
  31
  32 #define AXP20X_OFF      0x80
  33
  34 static const char * const axp20x_model_names[] = {
  35         "AXP152",
  36         "AXP202",
  37         "AXP209",
  38         "AXP221",
  39         "AXP288",
  40 };
  41
  42 static const struct regmap_range axp152_writeable_ranges[] = {
  43         regmap_reg_range(AXP152_LDO3456_DC1234_CTRL, AXP152_IRQ3_STATE),
  44         regmap_reg_range(AXP152_DCDC_MODE, AXP152_PWM1_DUTY_CYCLE),
  45 };
  46
  47 static const struct regmap_range axp152_volatile_ranges[] = {
  48         regmap_reg_range(AXP152_PWR_OP_MODE, AXP152_PWR_OP_MODE),
  49         regmap_reg_range(AXP152_IRQ1_EN, AXP152_IRQ3_STATE),
  50         regmap_reg_range(AXP152_GPIO_INPUT, AXP152_GPIO_INPUT),
  51 };
  52
  53 static const struct regmap_access_table axp152_writeable_table = {
  54         .yes_ranges     = axp152_writeable_ranges,
  55         .n_yes_ranges   = ARRAY_SIZE(axp152_writeable_ranges),
  56 };
  57
  58 static const struct regmap_access_table axp152_volatile_table = {
  59         .yes_ranges     = axp152_volatile_ranges,
  60         .n_yes_ranges   = ARRAY_SIZE(axp152_volatile_ranges),
  61 };
  62
  63 static const struct regmap_range axp20x_writeable_ranges[] = {
  64         regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
  65         regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
  66         regmap_reg_range(AXP20X_RDC_H, AXP20X_OCV(AXP20X_OCV_MAX)),
  67 };
  68
  69 static const struct regmap_range axp20x_volatile_ranges[] = {
  70         regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP20X_USB_OTG_STATUS),
  71         regmap_reg_range(AXP20X_CHRG_CTRL1, AXP20X_CHRG_CTRL2),
  72         regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
  73         regmap_reg_range(AXP20X_ACIN_V_ADC_H, AXP20X_IPSOUT_V_HIGH_L),
  74         regmap_reg_range(AXP20X_GPIO20_SS, AXP20X_GPIO3_CTRL),
  75         regmap_reg_range(AXP20X_FG_RES, AXP20X_RDC_L),
  76 };
  77
  78 static const struct regmap_access_table axp20x_writeable_table = {
  79         .yes_ranges     = axp20x_writeable_ranges,
  80         .n_yes_ranges   = ARRAY_SIZE(axp20x_writeable_ranges),
  81 };
  82
  83 static const struct regmap_access_table axp20x_volatile_table = {
  84         .yes_ranges     = axp20x_volatile_ranges,
  85         .n_yes_ranges   = ARRAY_SIZE(axp20x_volatile_ranges),
  86 };
  87
  88 static const struct regmap_range axp22x_writeable_ranges[] = {
  89         regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
  90         regmap_reg_range(AXP20X_DCDC_MODE, AXP22X_BATLOW_THRES1),
  91 };
  92
  93 static const struct regmap_range axp22x_volatile_ranges[] = {
  94         regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
  95 };
  96
  97 static const struct regmap_access_table axp22x_writeable_table = {
  98         .yes_ranges     = axp22x_writeable_ranges,
  99         .n_yes_ranges   = ARRAY_SIZE(axp22x_writeable_ranges),
 100 };
 101
 102 static const struct regmap_access_table axp22x_volatile_table = {
 103         .yes_ranges     = axp22x_volatile_ranges,
 104         .n_yes_ranges   = ARRAY_SIZE(axp22x_volatile_ranges),
 105 };
 106
 107 static const struct regmap_range axp288_writeable_ranges[] = {
 108         regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE),
 109         regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5),
 110 };
 111
 112 static const struct regmap_range axp288_volatile_ranges[] = {
 113         regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L),
 114 };
 115
 116 static const struct regmap_access_table axp288_writeable_table = {
 117         .yes_ranges     = axp288_writeable_ranges,
 118         .n_yes_ranges   = ARRAY_SIZE(axp288_writeable_ranges),
 119 };
 120
 121 static const struct regmap_access_table axp288_volatile_table = {
 122         .yes_ranges     = axp288_volatile_ranges,
 123         .n_yes_ranges   = ARRAY_SIZE(axp288_volatile_ranges),
 124 };
 125
 126 static struct resource axp152_pek_resources[] = {
 127         DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_RIS_EDGE, "PEK_DBR"),
 128         DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
 129 };
 130
 131 static struct resource axp20x_pek_resources[] = {
 132         {
 133                 .name   = "PEK_DBR",
 134                 .start  = AXP20X_IRQ_PEK_RIS_EDGE,
 135                 .end    = AXP20X_IRQ_PEK_RIS_EDGE,
 136                 .flags  = IORESOURCE_IRQ,
 137         }, {
 138                 .name   = "PEK_DBF",
 139                 .start  = AXP20X_IRQ_PEK_FAL_EDGE,
 140                 .end    = AXP20X_IRQ_PEK_FAL_EDGE,
 141                 .flags  = IORESOURCE_IRQ,
 142         },
 143 };
 144
 145 static struct resource axp20x_usb_power_supply_resources[] = {
 146         DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
 147         DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
 148         DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_VALID, "VBUS_VALID"),
 149         DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_NOT_VALID, "VBUS_NOT_VALID"),
 150 };
 151
 152 static struct resource axp22x_pek_resources[] = {
 153         {
 154                 .name   = "PEK_DBR",
 155                 .start  = AXP22X_IRQ_PEK_RIS_EDGE,
 156                 .end    = AXP22X_IRQ_PEK_RIS_EDGE,
 157                 .flags  = IORESOURCE_IRQ,
 158         }, {
 159                 .name   = "PEK_DBF",
 160                 .start  = AXP22X_IRQ_PEK_FAL_EDGE,
 161                 .end    = AXP22X_IRQ_PEK_FAL_EDGE,
 162                 .flags  = IORESOURCE_IRQ,
 163         },
 164 };
 165
 166 static struct resource axp288_power_button_resources[] = {
 167         {
 168                 .name   = "PEK_DBR",
 169                 .start  = AXP288_IRQ_POKN,
 170                 .end    = AXP288_IRQ_POKN,
 171                 .flags  = IORESOURCE_IRQ,
 172         },
 173         {
 174                 .name   = "PEK_DBF",
 175                 .start  = AXP288_IRQ_POKP,
 176                 .end    = AXP288_IRQ_POKP,
 177                 .flags  = IORESOURCE_IRQ,
 178         },
 179 };
 180
 181 static struct resource axp288_fuel_gauge_resources[] = {
 182         {
 183                 .start = AXP288_IRQ_QWBTU,
 184                 .end   = AXP288_IRQ_QWBTU,
 185                 .flags = IORESOURCE_IRQ,
 186         },
 187         {
 188                 .start = AXP288_IRQ_WBTU,
 189                 .end   = AXP288_IRQ_WBTU,
 190                 .flags = IORESOURCE_IRQ,
 191         },
 192         {
 193                 .start = AXP288_IRQ_QWBTO,
 194                 .end   = AXP288_IRQ_QWBTO,
 195                 .flags = IORESOURCE_IRQ,
 196         },
 197         {
 198                 .start = AXP288_IRQ_WBTO,
 199                 .end   = AXP288_IRQ_WBTO,
 200                 .flags = IORESOURCE_IRQ,
 201         },
 202         {
 203                 .start = AXP288_IRQ_WL2,
 204                 .end   = AXP288_IRQ_WL2,
 205                 .flags = IORESOURCE_IRQ,
 206         },
 207         {
 208                 .start = AXP288_IRQ_WL1,
 209                 .end   = AXP288_IRQ_WL1,
 210                 .flags = IORESOURCE_IRQ,
 211         },
 212 };
 213
 214 static const struct regmap_config axp152_regmap_config = {
 215         .reg_bits       = 8,
 216         .val_bits       = 8,
 217         .wr_table       = &axp152_writeable_table,
 218         .volatile_table = &axp152_volatile_table,
 219         .max_register   = AXP152_PWM1_DUTY_CYCLE,
 220         .cache_type     = REGCACHE_RBTREE,
 221 };
 222
 223 static const struct regmap_config axp20x_regmap_config = {
 224         .reg_bits       = 8,
 225         .val_bits       = 8,
 226         .wr_table       = &axp20x_writeable_table,
 227         .volatile_table = &axp20x_volatile_table,
 228         .max_register   = AXP20X_OCV(AXP20X_OCV_MAX),
 229         .cache_type     = REGCACHE_RBTREE,
 230 };
 231
 232 static const struct regmap_config axp22x_regmap_config = {
 233         .reg_bits       = 8,
 234         .val_bits       = 8,
 235         .wr_table       = &axp22x_writeable_table,
 236         .volatile_table = &axp22x_volatile_table,
 237         .max_register   = AXP22X_BATLOW_THRES1,
 238         .cache_type     = REGCACHE_RBTREE,
 239 };
 240
 241 static const struct regmap_config axp288_regmap_config = {
 242         .reg_bits       = 8,
 243         .val_bits       = 8,
 244         .wr_table       = &axp288_writeable_table,
 245         .volatile_table = &axp288_volatile_table,
 246         .max_register   = AXP288_FG_TUNE5,
 247         .cache_type     = REGCACHE_RBTREE,
 248 };
 249
 250 #define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask)                    \
 251         [_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }
 252
 253 static const struct regmap_irq axp152_regmap_irqs[] = {
 254         INIT_REGMAP_IRQ(AXP152, LDO0IN_CONNECT,         0, 6),
 255         INIT_REGMAP_IRQ(AXP152, LDO0IN_REMOVAL,         0, 5),
 256         INIT_REGMAP_IRQ(AXP152, ALDO0IN_CONNECT,        0, 3),
 257         INIT_REGMAP_IRQ(AXP152, ALDO0IN_REMOVAL,        0, 2),
 258         INIT_REGMAP_IRQ(AXP152, DCDC1_V_LOW,            1, 5),
 259         INIT_REGMAP_IRQ(AXP152, DCDC2_V_LOW,            1, 4),
 260         INIT_REGMAP_IRQ(AXP152, DCDC3_V_LOW,            1, 3),
 261         INIT_REGMAP_IRQ(AXP152, DCDC4_V_LOW,            1, 2),
 262         INIT_REGMAP_IRQ(AXP152, PEK_SHORT,              1, 1),
 263         INIT_REGMAP_IRQ(AXP152, PEK_LONG,               1, 0),
 264         INIT_REGMAP_IRQ(AXP152, TIMER,                  2, 7),
 265         INIT_REGMAP_IRQ(AXP152, PEK_RIS_EDGE,           2, 6),
 266         INIT_REGMAP_IRQ(AXP152, PEK_FAL_EDGE,           2, 5),
 267         INIT_REGMAP_IRQ(AXP152, GPIO3_INPUT,            2, 3),
 268         INIT_REGMAP_IRQ(AXP152, GPIO2_INPUT,            2, 2),
 269         INIT_REGMAP_IRQ(AXP152, GPIO1_INPUT,            2, 1),
 270         INIT_REGMAP_IRQ(AXP152, GPIO0_INPUT,            2, 0),
 271 };
 272
 273 static const struct regmap_irq axp20x_regmap_irqs[] = {
 274         INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V,            0, 7),
 275         INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN,            0, 6),
 276         INIT_REGMAP_IRQ(AXP20X, ACIN_REMOVAL,           0, 5),
 277         INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V,            0, 4),
 278         INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN,            0, 3),
 279         INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL,           0, 2),
 280         INIT_REGMAP_IRQ(AXP20X, VBUS_V_LOW,             0, 1),
 281         INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN,            1, 7),
 282         INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL,           1, 6),
 283         INIT_REGMAP_IRQ(AXP20X, BATT_ENT_ACT_MODE,      1, 5),
 284         INIT_REGMAP_IRQ(AXP20X, BATT_EXIT_ACT_MODE,     1, 4),
 285         INIT_REGMAP_IRQ(AXP20X, CHARG,                  1, 3),
 286         INIT_REGMAP_IRQ(AXP20X, CHARG_DONE,             1, 2),
 287         INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_HIGH,         1, 1),
 288         INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_LOW,          1, 0),
 289         INIT_REGMAP_IRQ(AXP20X, DIE_TEMP_HIGH,          2, 7),
 290         INIT_REGMAP_IRQ(AXP20X, CHARG_I_LOW,            2, 6),
 291         INIT_REGMAP_IRQ(AXP20X, DCDC1_V_LONG,           2, 5),
 292         INIT_REGMAP_IRQ(AXP20X, DCDC2_V_LONG,           2, 4),
 293         INIT_REGMAP_IRQ(AXP20X, DCDC3_V_LONG,           2, 3),
 294         INIT_REGMAP_IRQ(AXP20X, PEK_SHORT,              2, 1),
 295         INIT_REGMAP_IRQ(AXP20X, PEK_LONG,               2, 0),
 296         INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_ON,            3, 7),
 297         INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_OFF,           3, 6),
 298         INIT_REGMAP_IRQ(AXP20X, VBUS_VALID,             3, 5),
 299         INIT_REGMAP_IRQ(AXP20X, VBUS_NOT_VALID,         3, 4),
 300         INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_VALID,        3, 3),
 301         INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_END,          3, 2),
 302         INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL1,           3, 1),
 303         INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL2,           3, 0),
 304         INIT_REGMAP_IRQ(AXP20X, TIMER,                  4, 7),
 305         INIT_REGMAP_IRQ(AXP20X, PEK_RIS_EDGE,           4, 6),
 306         INIT_REGMAP_IRQ(AXP20X, PEK_FAL_EDGE,           4, 5),
 307         INIT_REGMAP_IRQ(AXP20X, GPIO3_INPUT,            4, 3),
 308         INIT_REGMAP_IRQ(AXP20X, GPIO2_INPUT,            4, 2),
 309         INIT_REGMAP_IRQ(AXP20X, GPIO1_INPUT,            4, 1),
 310         INIT_REGMAP_IRQ(AXP20X, GPIO0_INPUT,            4, 0),
 311 };
 312
 313 static const struct regmap_irq axp22x_regmap_irqs[] = {
 314         INIT_REGMAP_IRQ(AXP22X, ACIN_OVER_V,            0, 7),
 315         INIT_REGMAP_IRQ(AXP22X, ACIN_PLUGIN,            0, 6),
 316         INIT_REGMAP_IRQ(AXP22X, ACIN_REMOVAL,           0, 5),
 317         INIT_REGMAP_IRQ(AXP22X, VBUS_OVER_V,            0, 4),
 318         INIT_REGMAP_IRQ(AXP22X, VBUS_PLUGIN,            0, 3),
 319         INIT_REGMAP_IRQ(AXP22X, VBUS_REMOVAL,           0, 2),
 320         INIT_REGMAP_IRQ(AXP22X, VBUS_V_LOW,             0, 1),
 321         INIT_REGMAP_IRQ(AXP22X, BATT_PLUGIN,            1, 7),
 322         INIT_REGMAP_IRQ(AXP22X, BATT_REMOVAL,           1, 6),
 323         INIT_REGMAP_IRQ(AXP22X, BATT_ENT_ACT_MODE,      1, 5),
 324         INIT_REGMAP_IRQ(AXP22X, BATT_EXIT_ACT_MODE,     1, 4),
 325         INIT_REGMAP_IRQ(AXP22X, CHARG,                  1, 3),
 326         INIT_REGMAP_IRQ(AXP22X, CHARG_DONE,             1, 2),
 327         INIT_REGMAP_IRQ(AXP22X, BATT_TEMP_HIGH,         1, 1),
 328         INIT_REGMAP_IRQ(AXP22X, BATT_TEMP_LOW,          1, 0),
 329         INIT_REGMAP_IRQ(AXP22X, DIE_TEMP_HIGH,          2, 7),
 330         INIT_REGMAP_IRQ(AXP22X, PEK_SHORT,              2, 1),
 331         INIT_REGMAP_IRQ(AXP22X, PEK_LONG,               2, 0),
 332         INIT_REGMAP_IRQ(AXP22X, LOW_PWR_LVL1,           3, 1),
 333         INIT_REGMAP_IRQ(AXP22X, LOW_PWR_LVL2,           3, 0),
 334         INIT_REGMAP_IRQ(AXP22X, TIMER,                  4, 7),
 335         INIT_REGMAP_IRQ(AXP22X, PEK_RIS_EDGE,           4, 6),
 336         INIT_REGMAP_IRQ(AXP22X, PEK_FAL_EDGE,           4, 5),
 337         INIT_REGMAP_IRQ(AXP22X, GPIO1_INPUT,            4, 1),
 338         INIT_REGMAP_IRQ(AXP22X, GPIO0_INPUT,            4, 0),
 339 };
 340
 341 /* some IRQs are compatible with axp20x models */
 342 static const struct regmap_irq axp288_regmap_irqs[] = {
 343         INIT_REGMAP_IRQ(AXP288, VBUS_FALL,              0, 2),
 344         INIT_REGMAP_IRQ(AXP288, VBUS_RISE,              0, 3),
 345         INIT_REGMAP_IRQ(AXP288, OV,                     0, 4),
 346
 347         INIT_REGMAP_IRQ(AXP288, DONE,                   1, 2),
 348         INIT_REGMAP_IRQ(AXP288, CHARGING,               1, 3),
 349         INIT_REGMAP_IRQ(AXP288, SAFE_QUIT,              1, 4),
 350         INIT_REGMAP_IRQ(AXP288, SAFE_ENTER,             1, 5),
 351         INIT_REGMAP_IRQ(AXP288, ABSENT,                 1, 6),
 352         INIT_REGMAP_IRQ(AXP288, APPEND,                 1, 7),
 353
 354         INIT_REGMAP_IRQ(AXP288, QWBTU,                  2, 0),
 355         INIT_REGMAP_IRQ(AXP288, WBTU,                   2, 1),
 356         INIT_REGMAP_IRQ(AXP288, QWBTO,                  2, 2),
 357         INIT_REGMAP_IRQ(AXP288, WBTO,                   2, 3),
 358         INIT_REGMAP_IRQ(AXP288, QCBTU,                  2, 4),
 359         INIT_REGMAP_IRQ(AXP288, CBTU,                   2, 5),
 360         INIT_REGMAP_IRQ(AXP288, QCBTO,                  2, 6),
 361         INIT_REGMAP_IRQ(AXP288, CBTO,                   2, 7),
 362
 363         INIT_REGMAP_IRQ(AXP288, WL2,                    3, 0),
 364         INIT_REGMAP_IRQ(AXP288, WL1,                    3, 1),
 365         INIT_REGMAP_IRQ(AXP288, GPADC,                  3, 2),
 366         INIT_REGMAP_IRQ(AXP288, OT,                     3, 7),
 367
 368         INIT_REGMAP_IRQ(AXP288, GPIO0,                  4, 0),
 369         INIT_REGMAP_IRQ(AXP288, GPIO1,                  4, 1),
 370         INIT_REGMAP_IRQ(AXP288, POKO,                   4, 2),
 371         INIT_REGMAP_IRQ(AXP288, POKL,                   4, 3),
 372         INIT_REGMAP_IRQ(AXP288, POKS,                   4, 4),
 373         INIT_REGMAP_IRQ(AXP288, POKN,                   4, 5),
 374         INIT_REGMAP_IRQ(AXP288, POKP,                   4, 6),
 375         INIT_REGMAP_IRQ(AXP288, TIMER,                  4, 7),
 376
 377         INIT_REGMAP_IRQ(AXP288, MV_CHNG,                5, 0),
 378         INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG,            5, 1),
 379 };
 380
 381 static const struct of_device_id axp20x_of_match[] = {
 382         { .compatible = "x-powers,axp152", .data = (void *) AXP152_ID },
 383         { .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
 384         { .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
 385         { .compatible = "x-powers,axp221", .data = (void *) AXP221_ID },
 386         { },
 387 };
 388 MODULE_DEVICE_TABLE(of, axp20x_of_match);
 389
 390 /*
 391  * This is useless for OF-enabled devices, but it is needed by I2C subsystem
 392  */
 393 static const struct i2c_device_id axp20x_i2c_id[] = {
 394         { },
 395 };
 396 MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
 397
 398 static const struct acpi_device_id axp20x_acpi_match[] = {
 399         {
 400                 .id = "INT33F4",
 401                 .driver_data = AXP288_ID,
 402         },
 403         { },
 404 };
 405 MODULE_DEVICE_TABLE(acpi, axp20x_acpi_match);
 406
 407 static const struct regmap_irq_chip axp152_regmap_irq_chip = {
 408         .name                   = "axp152_irq_chip",
 409         .status_base            = AXP152_IRQ1_STATE,
 410         .ack_base               = AXP152_IRQ1_STATE,
 411         .mask_base              = AXP152_IRQ1_EN,
 412         .mask_invert            = true,
 413         .init_ack_masked        = true,
 414         .irqs                   = axp152_regmap_irqs,
 415         .num_irqs               = ARRAY_SIZE(axp152_regmap_irqs),
 416         .num_regs               = 3,
 417 };
 418
 419 static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
 420         .name                   = "axp20x_irq_chip",
 421         .status_base            = AXP20X_IRQ1_STATE,
 422         .ack_base               = AXP20X_IRQ1_STATE,
 423         .mask_base              = AXP20X_IRQ1_EN,
 424         .mask_invert            = true,
 425         .init_ack_masked        = true,
 426         .irqs                   = axp20x_regmap_irqs,
 427         .num_irqs               = ARRAY_SIZE(axp20x_regmap_irqs),
 428         .num_regs               = 5,
 429
 430 };
 431
 432 static const struct regmap_irq_chip axp22x_regmap_irq_chip = {
 433         .name                   = "axp22x_irq_chip",
 434         .status_base            = AXP20X_IRQ1_STATE,
 435         .ack_base               = AXP20X_IRQ1_STATE,
 436         .mask_base              = AXP20X_IRQ1_EN,
 437         .mask_invert            = true,
 438         .init_ack_masked        = true,
 439         .irqs                   = axp22x_regmap_irqs,
 440         .num_irqs               = ARRAY_SIZE(axp22x_regmap_irqs),
 441         .num_regs               = 5,
 442 };
 443
 444 static const struct regmap_irq_chip axp288_regmap_irq_chip = {
 445         .name                   = "axp288_irq_chip",
 446         .status_base            = AXP20X_IRQ1_STATE,
 447         .ack_base               = AXP20X_IRQ1_STATE,
 448         .mask_base              = AXP20X_IRQ1_EN,
 449         .mask_invert            = true,
 450         .init_ack_masked        = true,
 451         .irqs                   = axp288_regmap_irqs,
 452         .num_irqs               = ARRAY_SIZE(axp288_regmap_irqs),
 453         .num_regs               = 6,
 454
 455 };
 456
 457 static struct mfd_cell axp20x_cells[] = {
 458         {
 459                 .name           = "axp20x-pek",
 460                 .num_resources  = ARRAY_SIZE(axp20x_pek_resources),
 461                 .resources      = axp20x_pek_resources,
 462         }, {
 463                 .name           = "axp20x-regulator",
 464         }, {
 465                 .name           = "axp20x-usb-power-supply",
 466                 .of_compatible  = "x-powers,axp202-usb-power-supply",
 467                 .num_resources  = ARRAY_SIZE(axp20x_usb_power_supply_resources),
 468                 .resources      = axp20x_usb_power_supply_resources,
 469         },
 470 };
 471
 472 static struct mfd_cell axp22x_cells[] = {
 473         {
 474                 .name                   = "axp20x-pek",
 475                 .num_resources          = ARRAY_SIZE(axp22x_pek_resources),
 476                 .resources              = axp22x_pek_resources,
 477         }, {
 478                 .name                   = "axp20x-regulator",
 479         },
 480 };
 481
 482 static struct mfd_cell axp152_cells[] = {
 483         {
 484                 .name                   = "axp20x-pek",
 485                 .num_resources          = ARRAY_SIZE(axp152_pek_resources),
 486                 .resources              = axp152_pek_resources,
 487         },
 488 };
 489
 490 static struct resource axp288_adc_resources[] = {
 491         {
 492                 .name  = "GPADC",
 493                 .start = AXP288_IRQ_GPADC,
 494                 .end   = AXP288_IRQ_GPADC,
 495                 .flags = IORESOURCE_IRQ,
 496         },
 497 };
 498
 499 static struct resource axp288_extcon_resources[] = {
 500         {
 501                 .start = AXP288_IRQ_VBUS_FALL,
 502                 .end   = AXP288_IRQ_VBUS_FALL,
 503                 .flags = IORESOURCE_IRQ,
 504         },
 505         {
 506                 .start = AXP288_IRQ_VBUS_RISE,
 507                 .end   = AXP288_IRQ_VBUS_RISE,
 508                 .flags = IORESOURCE_IRQ,
 509         },
 510         {
 511                 .start = AXP288_IRQ_MV_CHNG,
 512                 .end   = AXP288_IRQ_MV_CHNG,
 513                 .flags = IORESOURCE_IRQ,
 514         },
 515         {
 516                 .start = AXP288_IRQ_BC_USB_CHNG,
 517                 .end   = AXP288_IRQ_BC_USB_CHNG,
 518                 .flags = IORESOURCE_IRQ,
 519         },
 520 };
 521
 522 static struct resource axp288_charger_resources[] = {
 523         {
 524                 .start = AXP288_IRQ_OV,
 525                 .end   = AXP288_IRQ_OV,
 526                 .flags = IORESOURCE_IRQ,
 527         },
 528         {
 529                 .start = AXP288_IRQ_DONE,
 530                 .end   = AXP288_IRQ_DONE,
 531                 .flags = IORESOURCE_IRQ,
 532         },
 533         {
 534                 .start = AXP288_IRQ_CHARGING,
 535                 .end   = AXP288_IRQ_CHARGING,
 536                 .flags = IORESOURCE_IRQ,
 537         },
 538         {
 539                 .start = AXP288_IRQ_SAFE_QUIT,
 540                 .end   = AXP288_IRQ_SAFE_QUIT,
 541                 .flags = IORESOURCE_IRQ,
 542         },
 543         {
 544                 .start = AXP288_IRQ_SAFE_ENTER,
 545                 .end   = AXP288_IRQ_SAFE_ENTER,
 546                 .flags = IORESOURCE_IRQ,
 547         },
 548         {
 549                 .start = AXP288_IRQ_QCBTU,
 550                 .end   = AXP288_IRQ_QCBTU,
 551                 .flags = IORESOURCE_IRQ,
 552         },
 553         {
 554                 .start = AXP288_IRQ_CBTU,
 555                 .end   = AXP288_IRQ_CBTU,
 556                 .flags = IORESOURCE_IRQ,
 557         },
 558         {
 559                 .start = AXP288_IRQ_QCBTO,
 560                 .end   = AXP288_IRQ_QCBTO,
 561                 .flags = IORESOURCE_IRQ,
 562         },
 563         {
 564                 .start = AXP288_IRQ_CBTO,
 565                 .end   = AXP288_IRQ_CBTO,
 566                 .flags = IORESOURCE_IRQ,
 567         },
 568 };
 569
 570 static struct mfd_cell axp288_cells[] = {
 571         {
 572                 .name = "axp288_adc",
 573                 .num_resources = ARRAY_SIZE(axp288_adc_resources),
 574                 .resources = axp288_adc_resources,
 575         },
 576         {
 577                 .name = "axp288_extcon",
 578                 .num_resources = ARRAY_SIZE(axp288_extcon_resources),
 579                 .resources = axp288_extcon_resources,
 580         },
 581         {
 582                 .name = "axp288_charger",
 583                 .num_resources = ARRAY_SIZE(axp288_charger_resources),
 584                 .resources = axp288_charger_resources,
 585         },
 586         {
 587                 .name = "axp288_fuel_gauge",
 588                 .num_resources = ARRAY_SIZE(axp288_fuel_gauge_resources),
 589                 .resources = axp288_fuel_gauge_resources,
 590         },
 591         {
 592                 .name = "axp20x-pek",
 593                 .num_resources = ARRAY_SIZE(axp288_power_button_resources),
 594                 .resources = axp288_power_button_resources,
 595         },
 596         {
 597                 .name = "axp288_pmic_acpi",
 598         },
 599 };
 600
 601 static struct axp20x_dev *axp20x_pm_power_off;
 602 static void axp20x_power_off(void)
 603 {
 604         if (axp20x_pm_power_off->variant == AXP288_ID)
 605                 return;
 606
 607         regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
 608                      AXP20X_OFF);
 609 }
 610
 611 static int axp20x_match_device(struct axp20x_dev *axp20x)
 612 {
 613         struct device *dev = axp20x->dev;
 614         const struct acpi_device_id *acpi_id;
 615         const struct of_device_id *of_id;
 616
 617         if (dev->of_node) {
 618                 of_id = of_match_device(dev->driver->of_match_table, dev);
 619                 if (!of_id) {
 620                         dev_err(dev, "Unable to match OF ID\n");
 621                         return -ENODEV;
 622                 }
 623                 axp20x->variant = (long) of_id->data;
 624         } else {
 625                 acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
 626                 if (!acpi_id || !acpi_id->driver_data) {
 627                         dev_err(dev, "Unable to match ACPI ID and data\n");
 628                         return -ENODEV;
 629                 }
 630                 axp20x->variant = (long) acpi_id->driver_data;
 631         }
 632
 633         switch (axp20x->variant) {
 634         case AXP152_ID:
 635                 axp20x->nr_cells = ARRAY_SIZE(axp152_cells);
 636                 axp20x->cells = axp152_cells;
 637                 axp20x->regmap_cfg = &axp152_regmap_config;
 638                 axp20x->regmap_irq_chip = &axp152_regmap_irq_chip;
 639                 break;
 640         case AXP202_ID:
 641         case AXP209_ID:
 642                 axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
 643                 axp20x->cells = axp20x_cells;
 644                 axp20x->regmap_cfg = &axp20x_regmap_config;
 645                 axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
 646                 break;
 647         case AXP221_ID:
 648                 axp20x->nr_cells = ARRAY_SIZE(axp22x_cells);
 649                 axp20x->cells = axp22x_cells;
 650                 axp20x->regmap_cfg = &axp22x_regmap_config;
 651                 axp20x->regmap_irq_chip = &axp22x_regmap_irq_chip;
 652                 break;
 653         case AXP288_ID:
 654                 axp20x->cells = axp288_cells;
 655                 axp20x->nr_cells = ARRAY_SIZE(axp288_cells);
 656                 axp20x->regmap_cfg = &axp288_regmap_config;
 657                 axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
 658                 break;
 659         default:
 660                 dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
 661                 return -EINVAL;
 662         }
 663         dev_info(dev, "AXP20x variant %s found\n",
 664                 axp20x_model_names[axp20x->variant]);
 665
 666         return 0;
 667 }
 668
 669 static int axp20x_i2c_probe(struct i2c_client *i2c,
 670                          const struct i2c_device_id *id)
 671 {
 672         struct axp20x_dev *axp20x;
 673         int ret;
 674
 675         axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
 676         if (!axp20x)
 677                 return -ENOMEM;
 678
 679         axp20x->i2c_client = i2c;
 680         axp20x->dev = &i2c->dev;
 681         dev_set_drvdata(axp20x->dev, axp20x);
 682
 683         ret = axp20x_match_device(axp20x);
 684         if (ret)
 685                 return ret;
 686
 687         axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg);
 688         if (IS_ERR(axp20x->regmap)) {
 689                 ret = PTR_ERR(axp20x->regmap);
 690                 dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
 691                 return ret;
 692         }
 693
 694         ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq,
 695                                   IRQF_ONESHOT | IRQF_SHARED, -1,
 696                                   axp20x->regmap_irq_chip,
 697                                   &axp20x->regmap_irqc);
 698         if (ret) {
 699                 dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret);
 700                 return ret;
 701         }
 702
 703         ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells,
 704                         axp20x->nr_cells, NULL, 0, NULL);
 705
 706         if (ret) {
 707                 dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
 708                 regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc);
 709                 return ret;
 710         }
 711
 712         if (!pm_power_off) {
 713                 axp20x_pm_power_off = axp20x;
 714                 pm_power_off = axp20x_power_off;
 715         }
 716
 717         dev_info(&i2c->dev, "AXP20X driver loaded\n");
 718
 719         return 0;
 720 }
 721
 722 static int axp20x_i2c_remove(struct i2c_client *i2c)
 723 {
 724         struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
 725
 726         if (axp20x == axp20x_pm_power_off) {
 727                 axp20x_pm_power_off = NULL;
 728                 pm_power_off = NULL;
 729         }
 730
 731         mfd_remove_devices(axp20x->dev);
 732         regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);
 733
 734         return 0;
 735 }
 736
 737 static struct i2c_driver axp20x_i2c_driver = {
 738         .driver = {
 739                 .name   = "axp20x",
 740                 .of_match_table = of_match_ptr(axp20x_of_match),
 741                 .acpi_match_table = ACPI_PTR(axp20x_acpi_match),
 742         },
 743         .probe          = axp20x_i2c_probe,
 744         .remove         = axp20x_i2c_remove,
 745         .id_table       = axp20x_i2c_id,
 746 };
 747
 748 module_i2c_driver(axp20x_i2c_driver);
 749
 750 MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X");
 751 MODULE_AUTHOR("Carlo Caione <carlo@caione.org>");
 752 MODULE_LICENSE("GPL");