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