1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright (C) 2019 ROHM Semiconductors 4 // 5 // ROHM BD71828/BD71815 PMIC driver 6 7 #include <linux/gpio_keys.h> 8 #include <linux/i2c.h> 9 #include <linux/input.h> 10 #include <linux/interrupt.h> 11 #include <linux/ioport.h> 12 #include <linux/irq.h> 13 #include <linux/mfd/core.h> 14 #include <linux/mfd/rohm-bd71815.h> 15 #include <linux/mfd/rohm-bd71828.h> 16 #include <linux/mfd/rohm-generic.h> 17 #include <linux/module.h> 18 #include <linux/of.h> 19 #include <linux/regmap.h> 20 #include <linux/types.h> 21 22 static struct gpio_keys_button button = { 23 .code = KEY_POWER, 24 .gpio = -1, 25 .type = EV_KEY, 26 }; 27 28 static struct gpio_keys_platform_data bd71828_powerkey_data = { 29 .buttons = &button, 30 .nbuttons = 1, 31 .name = "bd71828-pwrkey", 32 }; 33 34 static const struct resource bd71815_rtc_irqs[] = { 35 DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC0, "bd71815-rtc-alm-0"), 36 DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC1, "bd71815-rtc-alm-1"), 37 DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC2, "bd71815-rtc-alm-2"), 38 }; 39 40 static const struct resource bd71828_rtc_irqs[] = { 41 DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd71828-rtc-alm-0"), 42 DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd71828-rtc-alm-1"), 43 DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC2, "bd71828-rtc-alm-2"), 44 }; 45 46 static struct resource bd71815_power_irqs[] = { 47 DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_RMV, "bd71815-dcin-rmv"), 48 DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-clps-out"), 49 DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-clps-in"), 50 DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_RES, "bd71815-dcin-ovp-res"), 51 DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_DET, "bd71815-dcin-ovp-det"), 52 DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_RES, "bd71815-dcin-mon-res"), 53 DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_DET, "bd71815-dcin-mon-det"), 54 DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_UV_RES, "bd71815-vsys-uv-res"), 55 DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_UV_DET, "bd71815-vsys-uv-det"), 56 DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_RES, "bd71815-vsys-low-res"), 57 DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_DET, "bd71815-vsys-low-det"), 58 DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-res"), 59 DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-det"), 60 DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TEMP, "bd71815-chg-wdg-temp"), 61 DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TIME, "bd71815-chg-wdg"), 62 DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_RES, "bd71815-rechg-res"), 63 DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_DET, "bd71815-rechg-det"), 64 DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RANGED_TEMP_TRANSITION, "bd71815-ranged-temp-transit"), 65 DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_STATE_TRANSITION, "bd71815-chg-state-change"), 66 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_TEMP_NORMAL, "bd71815-bat-temp-normal"), 67 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_TEMP_ERANGE, "bd71815-bat-temp-erange"), 68 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_REMOVED, "bd71815-bat-rmv"), 69 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_DETECTED, "bd71815-bat-det"), 70 DEFINE_RES_IRQ_NAMED(BD71815_INT_THERM_REMOVED, "bd71815-therm-rmv"), 71 DEFINE_RES_IRQ_NAMED(BD71815_INT_THERM_DETECTED, "bd71815-therm-det"), 72 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_DEAD, "bd71815-bat-dead"), 73 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_SHORTC_RES, "bd71815-bat-short-res"), 74 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_SHORTC_DET, "bd71815-bat-short-det"), 75 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_LOW_VOLT_RES, "bd71815-bat-low-res"), 76 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_LOW_VOLT_DET, "bd71815-bat-low-det"), 77 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_VOLT_RES, "bd71815-bat-over-res"), 78 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_VOLT_DET, "bd71815-bat-over-det"), 79 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_MON_RES, "bd71815-bat-mon-res"), 80 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_MON_DET, "bd71815-bat-mon-det"), 81 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON1, "bd71815-bat-cc-mon1"), 82 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON2, "bd71815-bat-cc-mon2"), 83 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON3, "bd71815-bat-cc-mon3"), 84 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_1_RES, "bd71815-bat-oc1-res"), 85 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_1_DET, "bd71815-bat-oc1-det"), 86 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_RES, "bd71815-bat-oc2-res"), 87 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_DET, "bd71815-bat-oc2-det"), 88 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_RES, "bd71815-bat-oc3-res"), 89 DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_DET, "bd71815-bat-oc3-det"), 90 DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES, "bd71815-bat-low-res"), 91 DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET, "bd71815-bat-low-det"), 92 DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-bat-hi-res"), 93 DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-bat-hi-det"), 94 }; 95 96 static struct mfd_cell bd71815_mfd_cells[] = { 97 { .name = "bd71815-pmic", }, 98 { .name = "bd71815-clk", }, 99 { .name = "bd71815-gpo", }, 100 { 101 .name = "bd71815-power", 102 .num_resources = ARRAY_SIZE(bd71815_power_irqs), 103 .resources = &bd71815_power_irqs[0], 104 }, 105 { 106 .name = "bd71815-rtc", 107 .num_resources = ARRAY_SIZE(bd71815_rtc_irqs), 108 .resources = &bd71815_rtc_irqs[0], 109 }, 110 }; 111 112 static struct mfd_cell bd71828_mfd_cells[] = { 113 { .name = "bd71828-pmic", }, 114 { .name = "bd71828-gpio", }, 115 { .name = "bd71828-led", .of_compatible = "rohm,bd71828-leds" }, 116 /* 117 * We use BD71837 driver to drive the clock block. Only differences to 118 * BD70528 clock gate are the register address and mask. 119 */ 120 { .name = "bd71828-clk", }, 121 { .name = "bd71827-power", }, 122 { 123 .name = "bd71828-rtc", 124 .resources = bd71828_rtc_irqs, 125 .num_resources = ARRAY_SIZE(bd71828_rtc_irqs), 126 }, { 127 .name = "gpio-keys", 128 .platform_data = &bd71828_powerkey_data, 129 .pdata_size = sizeof(bd71828_powerkey_data), 130 }, 131 }; 132 133 static const struct regmap_range bd71815_volatile_ranges[] = { 134 { 135 .range_min = BD71815_REG_SEC, 136 .range_max = BD71815_REG_YEAR, 137 }, { 138 .range_min = BD71815_REG_CONF, 139 .range_max = BD71815_REG_BAT_TEMP, 140 }, { 141 .range_min = BD71815_REG_VM_IBAT_U, 142 .range_max = BD71815_REG_CC_CTRL, 143 }, { 144 .range_min = BD71815_REG_CC_STAT, 145 .range_max = BD71815_REG_CC_CURCD_L, 146 }, { 147 .range_min = BD71815_REG_VM_BTMP_MON, 148 .range_max = BD71815_REG_VM_BTMP_MON, 149 }, { 150 .range_min = BD71815_REG_INT_STAT, 151 .range_max = BD71815_REG_INT_UPDATE, 152 }, { 153 .range_min = BD71815_REG_VM_VSYS_U, 154 .range_max = BD71815_REG_REX_CTRL_1, 155 }, { 156 .range_min = BD71815_REG_FULL_CCNTD_3, 157 .range_max = BD71815_REG_CCNTD_CHG_2, 158 }, 159 }; 160 161 static const struct regmap_range bd71828_volatile_ranges[] = { 162 { 163 .range_min = BD71828_REG_PS_CTRL_1, 164 .range_max = BD71828_REG_PS_CTRL_1, 165 }, { 166 .range_min = BD71828_REG_PS_CTRL_3, 167 .range_max = BD71828_REG_PS_CTRL_3, 168 }, { 169 .range_min = BD71828_REG_RTC_SEC, 170 .range_max = BD71828_REG_RTC_YEAR, 171 }, { 172 /* 173 * For now make all charger registers volatile because many 174 * needs to be and because the charger block is not that 175 * performance critical. 176 */ 177 .range_min = BD71828_REG_CHG_STATE, 178 .range_max = BD71828_REG_CHG_FULL, 179 }, { 180 .range_min = BD71828_REG_INT_MAIN, 181 .range_max = BD71828_REG_IO_STAT, 182 }, 183 }; 184 185 static const struct regmap_access_table bd71815_volatile_regs = { 186 .yes_ranges = &bd71815_volatile_ranges[0], 187 .n_yes_ranges = ARRAY_SIZE(bd71815_volatile_ranges), 188 }; 189 190 static const struct regmap_access_table bd71828_volatile_regs = { 191 .yes_ranges = &bd71828_volatile_ranges[0], 192 .n_yes_ranges = ARRAY_SIZE(bd71828_volatile_ranges), 193 }; 194 195 static const struct regmap_config bd71815_regmap = { 196 .reg_bits = 8, 197 .val_bits = 8, 198 .volatile_table = &bd71815_volatile_regs, 199 .max_register = BD71815_MAX_REGISTER - 1, 200 .cache_type = REGCACHE_MAPLE, 201 }; 202 203 static const struct regmap_config bd71828_regmap = { 204 .reg_bits = 8, 205 .val_bits = 8, 206 .volatile_table = &bd71828_volatile_regs, 207 .max_register = BD71828_MAX_REGISTER, 208 .cache_type = REGCACHE_MAPLE, 209 }; 210 211 /* 212 * Mapping of main IRQ register bits to sub-IRQ register offsets so that we can 213 * access corect sub-IRQ registers based on bits that are set in main IRQ 214 * register. BD71815 and BD71828 have same sub-register-block offests. 215 */ 216 217 static unsigned int bit0_offsets[] = {11}; /* RTC IRQ */ 218 static unsigned int bit1_offsets[] = {10}; /* TEMP IRQ */ 219 static unsigned int bit2_offsets[] = {6, 7, 8, 9}; /* BAT MON IRQ */ 220 static unsigned int bit3_offsets[] = {5}; /* BAT IRQ */ 221 static unsigned int bit4_offsets[] = {4}; /* CHG IRQ */ 222 static unsigned int bit5_offsets[] = {3}; /* VSYS IRQ */ 223 static unsigned int bit6_offsets[] = {1, 2}; /* DCIN IRQ */ 224 static unsigned int bit7_offsets[] = {0}; /* BUCK IRQ */ 225 226 static struct regmap_irq_sub_irq_map bd718xx_sub_irq_offsets[] = { 227 REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets), 228 REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets), 229 REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets), 230 REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets), 231 REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets), 232 REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets), 233 REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets), 234 REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets), 235 }; 236 237 static const struct regmap_irq bd71815_irqs[] = { 238 REGMAP_IRQ_REG(BD71815_INT_BUCK1_OCP, 0, BD71815_INT_BUCK1_OCP_MASK), 239 REGMAP_IRQ_REG(BD71815_INT_BUCK2_OCP, 0, BD71815_INT_BUCK2_OCP_MASK), 240 REGMAP_IRQ_REG(BD71815_INT_BUCK3_OCP, 0, BD71815_INT_BUCK3_OCP_MASK), 241 REGMAP_IRQ_REG(BD71815_INT_BUCK4_OCP, 0, BD71815_INT_BUCK4_OCP_MASK), 242 REGMAP_IRQ_REG(BD71815_INT_BUCK5_OCP, 0, BD71815_INT_BUCK5_OCP_MASK), 243 REGMAP_IRQ_REG(BD71815_INT_LED_OVP, 0, BD71815_INT_LED_OVP_MASK), 244 REGMAP_IRQ_REG(BD71815_INT_LED_OCP, 0, BD71815_INT_LED_OCP_MASK), 245 REGMAP_IRQ_REG(BD71815_INT_LED_SCP, 0, BD71815_INT_LED_SCP_MASK), 246 /* DCIN1 interrupts */ 247 REGMAP_IRQ_REG(BD71815_INT_DCIN_RMV, 1, BD71815_INT_DCIN_RMV_MASK), 248 REGMAP_IRQ_REG(BD71815_INT_CLPS_OUT, 1, BD71815_INT_CLPS_OUT_MASK), 249 REGMAP_IRQ_REG(BD71815_INT_CLPS_IN, 1, BD71815_INT_CLPS_IN_MASK), 250 REGMAP_IRQ_REG(BD71815_INT_DCIN_OVP_RES, 1, BD71815_INT_DCIN_OVP_RES_MASK), 251 REGMAP_IRQ_REG(BD71815_INT_DCIN_OVP_DET, 1, BD71815_INT_DCIN_OVP_DET_MASK), 252 /* DCIN2 interrupts */ 253 REGMAP_IRQ_REG(BD71815_INT_DCIN_MON_RES, 2, BD71815_INT_DCIN_MON_RES_MASK), 254 REGMAP_IRQ_REG(BD71815_INT_DCIN_MON_DET, 2, BD71815_INT_DCIN_MON_DET_MASK), 255 REGMAP_IRQ_REG(BD71815_INT_WDOG, 2, BD71815_INT_WDOG_MASK), 256 /* Vsys */ 257 REGMAP_IRQ_REG(BD71815_INT_VSYS_UV_RES, 3, BD71815_INT_VSYS_UV_RES_MASK), 258 REGMAP_IRQ_REG(BD71815_INT_VSYS_UV_DET, 3, BD71815_INT_VSYS_UV_DET_MASK), 259 REGMAP_IRQ_REG(BD71815_INT_VSYS_LOW_RES, 3, BD71815_INT_VSYS_LOW_RES_MASK), 260 REGMAP_IRQ_REG(BD71815_INT_VSYS_LOW_DET, 3, BD71815_INT_VSYS_LOW_DET_MASK), 261 REGMAP_IRQ_REG(BD71815_INT_VSYS_MON_RES, 3, BD71815_INT_VSYS_MON_RES_MASK), 262 REGMAP_IRQ_REG(BD71815_INT_VSYS_MON_DET, 3, BD71815_INT_VSYS_MON_DET_MASK), 263 /* Charger */ 264 REGMAP_IRQ_REG(BD71815_INT_CHG_WDG_TEMP, 4, BD71815_INT_CHG_WDG_TEMP_MASK), 265 REGMAP_IRQ_REG(BD71815_INT_CHG_WDG_TIME, 4, BD71815_INT_CHG_WDG_TIME_MASK), 266 REGMAP_IRQ_REG(BD71815_INT_CHG_RECHARGE_RES, 4, BD71815_INT_CHG_RECHARGE_RES_MASK), 267 REGMAP_IRQ_REG(BD71815_INT_CHG_RECHARGE_DET, 4, BD71815_INT_CHG_RECHARGE_DET_MASK), 268 REGMAP_IRQ_REG(BD71815_INT_CHG_RANGED_TEMP_TRANSITION, 4, 269 BD71815_INT_CHG_RANGED_TEMP_TRANSITION_MASK), 270 REGMAP_IRQ_REG(BD71815_INT_CHG_STATE_TRANSITION, 4, BD71815_INT_CHG_STATE_TRANSITION_MASK), 271 /* Battery */ 272 REGMAP_IRQ_REG(BD71815_INT_BAT_TEMP_NORMAL, 5, BD71815_INT_BAT_TEMP_NORMAL_MASK), 273 REGMAP_IRQ_REG(BD71815_INT_BAT_TEMP_ERANGE, 5, BD71815_INT_BAT_TEMP_ERANGE_MASK), 274 REGMAP_IRQ_REG(BD71815_INT_BAT_REMOVED, 5, BD71815_INT_BAT_REMOVED_MASK), 275 REGMAP_IRQ_REG(BD71815_INT_BAT_DETECTED, 5, BD71815_INT_BAT_DETECTED_MASK), 276 REGMAP_IRQ_REG(BD71815_INT_THERM_REMOVED, 5, BD71815_INT_THERM_REMOVED_MASK), 277 REGMAP_IRQ_REG(BD71815_INT_THERM_DETECTED, 5, BD71815_INT_THERM_DETECTED_MASK), 278 /* Battery Mon 1 */ 279 REGMAP_IRQ_REG(BD71815_INT_BAT_DEAD, 6, BD71815_INT_BAT_DEAD_MASK), 280 REGMAP_IRQ_REG(BD71815_INT_BAT_SHORTC_RES, 6, BD71815_INT_BAT_SHORTC_RES_MASK), 281 REGMAP_IRQ_REG(BD71815_INT_BAT_SHORTC_DET, 6, BD71815_INT_BAT_SHORTC_DET_MASK), 282 REGMAP_IRQ_REG(BD71815_INT_BAT_LOW_VOLT_RES, 6, BD71815_INT_BAT_LOW_VOLT_RES_MASK), 283 REGMAP_IRQ_REG(BD71815_INT_BAT_LOW_VOLT_DET, 6, BD71815_INT_BAT_LOW_VOLT_DET_MASK), 284 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_VOLT_RES, 6, BD71815_INT_BAT_OVER_VOLT_RES_MASK), 285 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_VOLT_DET, 6, BD71815_INT_BAT_OVER_VOLT_DET_MASK), 286 /* Battery Mon 2 */ 287 REGMAP_IRQ_REG(BD71815_INT_BAT_MON_RES, 7, BD71815_INT_BAT_MON_RES_MASK), 288 REGMAP_IRQ_REG(BD71815_INT_BAT_MON_DET, 7, BD71815_INT_BAT_MON_DET_MASK), 289 /* Battery Mon 3 (Coulomb counter) */ 290 REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON1, 8, BD71815_INT_BAT_CC_MON1_MASK), 291 REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON2, 8, BD71815_INT_BAT_CC_MON2_MASK), 292 REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON3, 8, BD71815_INT_BAT_CC_MON3_MASK), 293 /* Battery Mon 4 */ 294 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_1_RES, 9, BD71815_INT_BAT_OVER_CURR_1_RES_MASK), 295 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_1_DET, 9, BD71815_INT_BAT_OVER_CURR_1_DET_MASK), 296 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_2_RES, 9, BD71815_INT_BAT_OVER_CURR_2_RES_MASK), 297 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_2_DET, 9, BD71815_INT_BAT_OVER_CURR_2_DET_MASK), 298 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_3_RES, 9, BD71815_INT_BAT_OVER_CURR_3_RES_MASK), 299 REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_3_DET, 9, BD71815_INT_BAT_OVER_CURR_3_DET_MASK), 300 /* Temperature */ 301 REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_LOW_RES, 10, BD71815_INT_TEMP_BAT_LOW_RES_MASK), 302 REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_LOW_DET, 10, BD71815_INT_TEMP_BAT_LOW_DET_MASK), 303 REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_HI_RES, 10, BD71815_INT_TEMP_BAT_HI_RES_MASK), 304 REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_HI_DET, 10, BD71815_INT_TEMP_BAT_HI_DET_MASK), 305 REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_125_RES, 10, 306 BD71815_INT_TEMP_CHIP_OVER_125_RES_MASK), 307 REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_125_DET, 10, 308 BD71815_INT_TEMP_CHIP_OVER_125_DET_MASK), 309 REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_VF_RES, 10, 310 BD71815_INT_TEMP_CHIP_OVER_VF_RES_MASK), 311 REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_VF_DET, 10, 312 BD71815_INT_TEMP_CHIP_OVER_VF_DET_MASK), 313 /* RTC Alarm */ 314 REGMAP_IRQ_REG(BD71815_INT_RTC0, 11, BD71815_INT_RTC0_MASK), 315 REGMAP_IRQ_REG(BD71815_INT_RTC1, 11, BD71815_INT_RTC1_MASK), 316 REGMAP_IRQ_REG(BD71815_INT_RTC2, 11, BD71815_INT_RTC2_MASK), 317 }; 318 319 static struct regmap_irq bd71828_irqs[] = { 320 REGMAP_IRQ_REG(BD71828_INT_BUCK1_OCP, 0, BD71828_INT_BUCK1_OCP_MASK), 321 REGMAP_IRQ_REG(BD71828_INT_BUCK2_OCP, 0, BD71828_INT_BUCK2_OCP_MASK), 322 REGMAP_IRQ_REG(BD71828_INT_BUCK3_OCP, 0, BD71828_INT_BUCK3_OCP_MASK), 323 REGMAP_IRQ_REG(BD71828_INT_BUCK4_OCP, 0, BD71828_INT_BUCK4_OCP_MASK), 324 REGMAP_IRQ_REG(BD71828_INT_BUCK5_OCP, 0, BD71828_INT_BUCK5_OCP_MASK), 325 REGMAP_IRQ_REG(BD71828_INT_BUCK6_OCP, 0, BD71828_INT_BUCK6_OCP_MASK), 326 REGMAP_IRQ_REG(BD71828_INT_BUCK7_OCP, 0, BD71828_INT_BUCK7_OCP_MASK), 327 REGMAP_IRQ_REG(BD71828_INT_PGFAULT, 0, BD71828_INT_PGFAULT_MASK), 328 /* DCIN1 interrupts */ 329 REGMAP_IRQ_REG(BD71828_INT_DCIN_DET, 1, BD71828_INT_DCIN_DET_MASK), 330 REGMAP_IRQ_REG(BD71828_INT_DCIN_RMV, 1, BD71828_INT_DCIN_RMV_MASK), 331 REGMAP_IRQ_REG(BD71828_INT_CLPS_OUT, 1, BD71828_INT_CLPS_OUT_MASK), 332 REGMAP_IRQ_REG(BD71828_INT_CLPS_IN, 1, BD71828_INT_CLPS_IN_MASK), 333 /* DCIN2 interrupts */ 334 REGMAP_IRQ_REG(BD71828_INT_DCIN_MON_RES, 2, BD71828_INT_DCIN_MON_RES_MASK), 335 REGMAP_IRQ_REG(BD71828_INT_DCIN_MON_DET, 2, BD71828_INT_DCIN_MON_DET_MASK), 336 REGMAP_IRQ_REG(BD71828_INT_LONGPUSH, 2, BD71828_INT_LONGPUSH_MASK), 337 REGMAP_IRQ_REG(BD71828_INT_MIDPUSH, 2, BD71828_INT_MIDPUSH_MASK), 338 REGMAP_IRQ_REG(BD71828_INT_SHORTPUSH, 2, BD71828_INT_SHORTPUSH_MASK), 339 REGMAP_IRQ_REG(BD71828_INT_PUSH, 2, BD71828_INT_PUSH_MASK), 340 REGMAP_IRQ_REG(BD71828_INT_WDOG, 2, BD71828_INT_WDOG_MASK), 341 REGMAP_IRQ_REG(BD71828_INT_SWRESET, 2, BD71828_INT_SWRESET_MASK), 342 /* Vsys */ 343 REGMAP_IRQ_REG(BD71828_INT_VSYS_UV_RES, 3, BD71828_INT_VSYS_UV_RES_MASK), 344 REGMAP_IRQ_REG(BD71828_INT_VSYS_UV_DET, 3, BD71828_INT_VSYS_UV_DET_MASK), 345 REGMAP_IRQ_REG(BD71828_INT_VSYS_LOW_RES, 3, BD71828_INT_VSYS_LOW_RES_MASK), 346 REGMAP_IRQ_REG(BD71828_INT_VSYS_LOW_DET, 3, BD71828_INT_VSYS_LOW_DET_MASK), 347 REGMAP_IRQ_REG(BD71828_INT_VSYS_HALL_IN, 3, BD71828_INT_VSYS_HALL_IN_MASK), 348 REGMAP_IRQ_REG(BD71828_INT_VSYS_HALL_TOGGLE, 3, BD71828_INT_VSYS_HALL_TOGGLE_MASK), 349 REGMAP_IRQ_REG(BD71828_INT_VSYS_MON_RES, 3, BD71828_INT_VSYS_MON_RES_MASK), 350 REGMAP_IRQ_REG(BD71828_INT_VSYS_MON_DET, 3, BD71828_INT_VSYS_MON_DET_MASK), 351 /* Charger */ 352 REGMAP_IRQ_REG(BD71828_INT_CHG_DCIN_ILIM, 4, BD71828_INT_CHG_DCIN_ILIM_MASK), 353 REGMAP_IRQ_REG(BD71828_INT_CHG_TOPOFF_TO_DONE, 4, BD71828_INT_CHG_TOPOFF_TO_DONE_MASK), 354 REGMAP_IRQ_REG(BD71828_INT_CHG_WDG_TEMP, 4, BD71828_INT_CHG_WDG_TEMP_MASK), 355 REGMAP_IRQ_REG(BD71828_INT_CHG_WDG_TIME, 4, BD71828_INT_CHG_WDG_TIME_MASK), 356 REGMAP_IRQ_REG(BD71828_INT_CHG_RECHARGE_RES, 4, BD71828_INT_CHG_RECHARGE_RES_MASK), 357 REGMAP_IRQ_REG(BD71828_INT_CHG_RECHARGE_DET, 4, BD71828_INT_CHG_RECHARGE_DET_MASK), 358 REGMAP_IRQ_REG(BD71828_INT_CHG_RANGED_TEMP_TRANSITION, 4, 359 BD71828_INT_CHG_RANGED_TEMP_TRANSITION_MASK), 360 REGMAP_IRQ_REG(BD71828_INT_CHG_STATE_TRANSITION, 4, BD71828_INT_CHG_STATE_TRANSITION_MASK), 361 /* Battery */ 362 REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_NORMAL, 5, BD71828_INT_BAT_TEMP_NORMAL_MASK), 363 REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_ERANGE, 5, BD71828_INT_BAT_TEMP_ERANGE_MASK), 364 REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_WARN, 5, BD71828_INT_BAT_TEMP_WARN_MASK), 365 REGMAP_IRQ_REG(BD71828_INT_BAT_REMOVED, 5, BD71828_INT_BAT_REMOVED_MASK), 366 REGMAP_IRQ_REG(BD71828_INT_BAT_DETECTED, 5, BD71828_INT_BAT_DETECTED_MASK), 367 REGMAP_IRQ_REG(BD71828_INT_THERM_REMOVED, 5, BD71828_INT_THERM_REMOVED_MASK), 368 REGMAP_IRQ_REG(BD71828_INT_THERM_DETECTED, 5, BD71828_INT_THERM_DETECTED_MASK), 369 /* Battery Mon 1 */ 370 REGMAP_IRQ_REG(BD71828_INT_BAT_DEAD, 6, BD71828_INT_BAT_DEAD_MASK), 371 REGMAP_IRQ_REG(BD71828_INT_BAT_SHORTC_RES, 6, BD71828_INT_BAT_SHORTC_RES_MASK), 372 REGMAP_IRQ_REG(BD71828_INT_BAT_SHORTC_DET, 6, BD71828_INT_BAT_SHORTC_DET_MASK), 373 REGMAP_IRQ_REG(BD71828_INT_BAT_LOW_VOLT_RES, 6, BD71828_INT_BAT_LOW_VOLT_RES_MASK), 374 REGMAP_IRQ_REG(BD71828_INT_BAT_LOW_VOLT_DET, 6, BD71828_INT_BAT_LOW_VOLT_DET_MASK), 375 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_VOLT_RES, 6, BD71828_INT_BAT_OVER_VOLT_RES_MASK), 376 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_VOLT_DET, 6, BD71828_INT_BAT_OVER_VOLT_DET_MASK), 377 /* Battery Mon 2 */ 378 REGMAP_IRQ_REG(BD71828_INT_BAT_MON_RES, 7, BD71828_INT_BAT_MON_RES_MASK), 379 REGMAP_IRQ_REG(BD71828_INT_BAT_MON_DET, 7, BD71828_INT_BAT_MON_DET_MASK), 380 /* Battery Mon 3 (Coulomb counter) */ 381 REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON1, 8, BD71828_INT_BAT_CC_MON1_MASK), 382 REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON2, 8, BD71828_INT_BAT_CC_MON2_MASK), 383 REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON3, 8, BD71828_INT_BAT_CC_MON3_MASK), 384 /* Battery Mon 4 */ 385 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_1_RES, 9, BD71828_INT_BAT_OVER_CURR_1_RES_MASK), 386 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_1_DET, 9, BD71828_INT_BAT_OVER_CURR_1_DET_MASK), 387 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_2_RES, 9, BD71828_INT_BAT_OVER_CURR_2_RES_MASK), 388 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_2_DET, 9, BD71828_INT_BAT_OVER_CURR_2_DET_MASK), 389 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_3_RES, 9, BD71828_INT_BAT_OVER_CURR_3_RES_MASK), 390 REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_3_DET, 9, BD71828_INT_BAT_OVER_CURR_3_DET_MASK), 391 /* Temperature */ 392 REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_LOW_RES, 10, BD71828_INT_TEMP_BAT_LOW_RES_MASK), 393 REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_LOW_DET, 10, BD71828_INT_TEMP_BAT_LOW_DET_MASK), 394 REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_HI_RES, 10, BD71828_INT_TEMP_BAT_HI_RES_MASK), 395 REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_HI_DET, 10, BD71828_INT_TEMP_BAT_HI_DET_MASK), 396 REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_125_RES, 10, 397 BD71828_INT_TEMP_CHIP_OVER_125_RES_MASK), 398 REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_125_DET, 10, 399 BD71828_INT_TEMP_CHIP_OVER_125_DET_MASK), 400 REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_VF_DET, 10, 401 BD71828_INT_TEMP_CHIP_OVER_VF_DET_MASK), 402 REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_VF_RES, 10, 403 BD71828_INT_TEMP_CHIP_OVER_VF_RES_MASK), 404 /* RTC Alarm */ 405 REGMAP_IRQ_REG(BD71828_INT_RTC0, 11, BD71828_INT_RTC0_MASK), 406 REGMAP_IRQ_REG(BD71828_INT_RTC1, 11, BD71828_INT_RTC1_MASK), 407 REGMAP_IRQ_REG(BD71828_INT_RTC2, 11, BD71828_INT_RTC2_MASK), 408 }; 409 410 static struct regmap_irq_chip bd71828_irq_chip = { 411 .name = "bd71828_irq", 412 .main_status = BD71828_REG_INT_MAIN, 413 .irqs = &bd71828_irqs[0], 414 .num_irqs = ARRAY_SIZE(bd71828_irqs), 415 .status_base = BD71828_REG_INT_BUCK, 416 .unmask_base = BD71828_REG_INT_MASK_BUCK, 417 .ack_base = BD71828_REG_INT_BUCK, 418 .init_ack_masked = true, 419 .num_regs = 12, 420 .num_main_regs = 1, 421 .sub_reg_offsets = &bd718xx_sub_irq_offsets[0], 422 .num_main_status_bits = 8, 423 .irq_reg_stride = 1, 424 }; 425 426 static struct regmap_irq_chip bd71815_irq_chip = { 427 .name = "bd71815_irq", 428 .main_status = BD71815_REG_INT_STAT, 429 .irqs = &bd71815_irqs[0], 430 .num_irqs = ARRAY_SIZE(bd71815_irqs), 431 .status_base = BD71815_REG_INT_STAT_01, 432 .unmask_base = BD71815_REG_INT_EN_01, 433 .ack_base = BD71815_REG_INT_STAT_01, 434 .init_ack_masked = true, 435 .num_regs = 12, 436 .num_main_regs = 1, 437 .sub_reg_offsets = &bd718xx_sub_irq_offsets[0], 438 .num_main_status_bits = 8, 439 .irq_reg_stride = 1, 440 }; 441 442 static int set_clk_mode(struct device *dev, struct regmap *regmap, 443 int clkmode_reg) 444 { 445 int ret; 446 unsigned int open_drain; 447 448 ret = of_property_read_u32(dev->of_node, "rohm,clkout-open-drain", &open_drain); 449 if (ret) { 450 if (ret == -EINVAL) 451 return 0; 452 return ret; 453 } 454 if (open_drain > 1) { 455 dev_err(dev, "bad clk32kout mode configuration"); 456 return -EINVAL; 457 } 458 459 if (open_drain) 460 return regmap_update_bits(regmap, clkmode_reg, OUT32K_MODE, 461 OUT32K_MODE_OPEN_DRAIN); 462 463 return regmap_update_bits(regmap, clkmode_reg, OUT32K_MODE, 464 OUT32K_MODE_CMOS); 465 } 466 467 static struct i2c_client *bd71828_dev; 468 static void bd71828_power_off(void) 469 { 470 while (true) { 471 s32 val; 472 473 /* We are not allowed to sleep, so do not use regmap involving mutexes here. */ 474 val = i2c_smbus_read_byte_data(bd71828_dev, BD71828_REG_PS_CTRL_1); 475 if (val >= 0) 476 i2c_smbus_write_byte_data(bd71828_dev, 477 BD71828_REG_PS_CTRL_1, 478 BD71828_MASK_STATE_HBNT | (u8)val); 479 mdelay(500); 480 } 481 } 482 483 static void bd71828_remove_poweroff(void *data) 484 { 485 pm_power_off = NULL; 486 } 487 488 static int bd71828_i2c_probe(struct i2c_client *i2c) 489 { 490 struct regmap_irq_chip_data *irq_data; 491 int ret; 492 struct regmap *regmap; 493 const struct regmap_config *regmap_config; 494 struct regmap_irq_chip *irqchip; 495 unsigned int chip_type; 496 struct mfd_cell *mfd; 497 int cells; 498 int button_irq; 499 int clkmode_reg; 500 501 if (!i2c->irq) { 502 dev_err(&i2c->dev, "No IRQ configured\n"); 503 return -EINVAL; 504 } 505 506 chip_type = (unsigned int)(uintptr_t) 507 of_device_get_match_data(&i2c->dev); 508 switch (chip_type) { 509 case ROHM_CHIP_TYPE_BD71828: 510 mfd = bd71828_mfd_cells; 511 cells = ARRAY_SIZE(bd71828_mfd_cells); 512 regmap_config = &bd71828_regmap; 513 irqchip = &bd71828_irq_chip; 514 clkmode_reg = BD71828_REG_OUT32K; 515 button_irq = BD71828_INT_SHORTPUSH; 516 break; 517 case ROHM_CHIP_TYPE_BD71815: 518 mfd = bd71815_mfd_cells; 519 cells = ARRAY_SIZE(bd71815_mfd_cells); 520 regmap_config = &bd71815_regmap; 521 irqchip = &bd71815_irq_chip; 522 clkmode_reg = BD71815_REG_OUT32K; 523 /* 524 * If BD71817 support is needed we should be able to handle it 525 * with proper DT configs + BD71815 drivers + power-button. 526 * BD71815 data-sheet does not list the power-button IRQ so we 527 * don't use it. 528 */ 529 button_irq = 0; 530 break; 531 default: 532 dev_err(&i2c->dev, "Unknown device type"); 533 return -EINVAL; 534 } 535 536 regmap = devm_regmap_init_i2c(i2c, regmap_config); 537 if (IS_ERR(regmap)) 538 return dev_err_probe(&i2c->dev, PTR_ERR(regmap), 539 "Failed to initialize Regmap\n"); 540 541 ret = devm_regmap_add_irq_chip(&i2c->dev, regmap, i2c->irq, 542 IRQF_ONESHOT, 0, irqchip, &irq_data); 543 if (ret) 544 return dev_err_probe(&i2c->dev, ret, 545 "Failed to add IRQ chip\n"); 546 547 dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n", 548 irqchip->num_irqs); 549 550 if (button_irq) { 551 ret = regmap_irq_get_virq(irq_data, button_irq); 552 if (ret < 0) 553 return dev_err_probe(&i2c->dev, ret, 554 "Failed to get the power-key IRQ\n"); 555 556 button.irq = ret; 557 } 558 559 ret = set_clk_mode(&i2c->dev, regmap, clkmode_reg); 560 if (ret) 561 return ret; 562 563 ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, mfd, cells, 564 NULL, 0, regmap_irq_get_domain(irq_data)); 565 if (ret) 566 return dev_err_probe(&i2c->dev, ret, "Failed to create subdevices\n"); 567 568 if (of_device_is_system_power_controller(i2c->dev.of_node) && 569 chip_type == ROHM_CHIP_TYPE_BD71828) { 570 if (!pm_power_off) { 571 bd71828_dev = i2c; 572 pm_power_off = bd71828_power_off; 573 ret = devm_add_action_or_reset(&i2c->dev, 574 bd71828_remove_poweroff, 575 NULL); 576 } else { 577 dev_warn(&i2c->dev, "Poweroff callback already assigned\n"); 578 } 579 } 580 581 return ret; 582 } 583 584 static const struct of_device_id bd71828_of_match[] = { 585 { 586 .compatible = "rohm,bd71828", 587 .data = (void *)ROHM_CHIP_TYPE_BD71828, 588 }, { 589 .compatible = "rohm,bd71815", 590 .data = (void *)ROHM_CHIP_TYPE_BD71815, 591 }, 592 { }, 593 }; 594 MODULE_DEVICE_TABLE(of, bd71828_of_match); 595 596 static struct i2c_driver bd71828_drv = { 597 .driver = { 598 .name = "rohm-bd71828", 599 .of_match_table = bd71828_of_match, 600 }, 601 .probe = bd71828_i2c_probe, 602 }; 603 module_i2c_driver(bd71828_drv); 604 605 MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>"); 606 MODULE_DESCRIPTION("ROHM BD71828 Power Management IC driver"); 607 MODULE_LICENSE("GPL"); 608