/* * Core driver for ams AS3722 PMICs * * Copyright (C) 2013 AMS AG * Copyright (c) 2013, NVIDIA Corporation. All rights reserved. * * Author: Florian Lobmaier * Author: Laxman Dewangan * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include #include #include #include #include #include #include #define AS3722_DEVICE_ID 0x0C enum { AS3722_PINCTRL_ID, AS3722_REGULATOR_ID, AS3722_RTC_ID, AS3722_ADC, AS3722_POWER_OFF_ID, AS3722_CLK_ID, AS3722_WATCHDOG_ID, }; static const struct resource as3722_rtc_resource[] = { { .name = "as3722-rtc-alarm", .start = AS3722_IRQ_RTC_ALARM, .end = AS3722_IRQ_RTC_ALARM, .flags = IORESOURCE_IRQ, }, }; static const struct resource as3722_adc_resource[] = { { .name = "as3722-adc", .start = AS3722_IRQ_ADC, .end = AS3722_IRQ_ADC, .flags = IORESOURCE_IRQ, }, }; static struct mfd_cell as3722_devs[] = { { .name = "as3722-pinctrl", .id = AS3722_PINCTRL_ID, }, { .name = "as3722-regulator", .id = AS3722_REGULATOR_ID, }, { .name = "as3722-clk", .id = AS3722_CLK_ID, }, { .name = "as3722-rtc", .num_resources = ARRAY_SIZE(as3722_rtc_resource), .resources = as3722_rtc_resource, .id = AS3722_RTC_ID, }, { .name = "as3722-adc-extcon", .num_resources = ARRAY_SIZE(as3722_adc_resource), .resources = as3722_adc_resource, .id = AS3722_ADC, }, { .name = "as3722-power-off", .id = AS3722_POWER_OFF_ID, }, { .name = "as3722-wdt", .id = AS3722_WATCHDOG_ID, }, }; static const struct regmap_irq as3722_irqs[] = { /* INT1 IRQs */ [AS3722_IRQ_LID] = { .mask = AS3722_INTERRUPT_MASK1_LID, }, [AS3722_IRQ_ACOK] = { .mask = AS3722_INTERRUPT_MASK1_ACOK, }, [AS3722_IRQ_ENABLE1] = { .mask = AS3722_INTERRUPT_MASK1_ENABLE1, }, [AS3722_IRQ_OCCUR_ALARM_SD0] = { .mask = AS3722_INTERRUPT_MASK1_OCURR_ALARM_SD0, }, [AS3722_IRQ_ONKEY_LONG_PRESS] = { .mask = AS3722_INTERRUPT_MASK1_ONKEY_LONG, }, [AS3722_IRQ_ONKEY] = { .mask = AS3722_INTERRUPT_MASK1_ONKEY, }, [AS3722_IRQ_OVTMP] = { .mask = AS3722_INTERRUPT_MASK1_OVTMP, }, [AS3722_IRQ_LOWBAT] = { .mask = AS3722_INTERRUPT_MASK1_LOWBAT, }, /* INT2 IRQs */ [AS3722_IRQ_SD0_LV] = { .mask = AS3722_INTERRUPT_MASK2_SD0_LV, .reg_offset = 1, }, [AS3722_IRQ_SD1_LV] = { .mask = AS3722_INTERRUPT_MASK2_SD1_LV, .reg_offset = 1, }, [AS3722_IRQ_SD2_LV] = { .mask = AS3722_INTERRUPT_MASK2_SD2345_LV, .reg_offset = 1, }, [AS3722_IRQ_PWM1_OV_PROT] = { .mask = AS3722_INTERRUPT_MASK2_PWM1_OV_PROT, .reg_offset = 1, }, [AS3722_IRQ_PWM2_OV_PROT] = { .mask = AS3722_INTERRUPT_MASK2_PWM2_OV_PROT, .reg_offset = 1, }, [AS3722_IRQ_ENABLE2] = { .mask = AS3722_INTERRUPT_MASK2_ENABLE2, .reg_offset = 1, }, [AS3722_IRQ_SD6_LV] = { .mask = AS3722_INTERRUPT_MASK2_SD6_LV, .reg_offset = 1, }, [AS3722_IRQ_RTC_REP] = { .mask = AS3722_INTERRUPT_MASK2_RTC_REP, .reg_offset = 1, }, /* INT3 IRQs */ [AS3722_IRQ_RTC_ALARM] = { .mask = AS3722_INTERRUPT_MASK3_RTC_ALARM, .reg_offset = 2, }, [AS3722_IRQ_GPIO1] = { .mask = AS3722_INTERRUPT_MASK3_GPIO1, .reg_offset = 2, }, [AS3722_IRQ_GPIO2] = { .mask = AS3722_INTERRUPT_MASK3_GPIO2, .reg_offset = 2, }, [AS3722_IRQ_GPIO3] = { .mask = AS3722_INTERRUPT_MASK3_GPIO3, .reg_offset = 2, }, [AS3722_IRQ_GPIO4] = { .mask = AS3722_INTERRUPT_MASK3_GPIO4, .reg_offset = 2, }, [AS3722_IRQ_GPIO5] = { .mask = AS3722_INTERRUPT_MASK3_GPIO5, .reg_offset = 2, }, [AS3722_IRQ_WATCHDOG] = { .mask = AS3722_INTERRUPT_MASK3_WATCHDOG, .reg_offset = 2, }, [AS3722_IRQ_ENABLE3] = { .mask = AS3722_INTERRUPT_MASK3_ENABLE3, .reg_offset = 2, }, /* INT4 IRQs */ [AS3722_IRQ_TEMP_SD0_SHUTDOWN] = { .mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_SHUTDOWN, .reg_offset = 3, }, [AS3722_IRQ_TEMP_SD1_SHUTDOWN] = { .mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_SHUTDOWN, .reg_offset = 3, }, [AS3722_IRQ_TEMP_SD2_SHUTDOWN] = { .mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_SHUTDOWN, .reg_offset = 3, }, [AS3722_IRQ_TEMP_SD0_ALARM] = { .mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_ALARM, .reg_offset = 3, }, [AS3722_IRQ_TEMP_SD1_ALARM] = { .mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_ALARM, .reg_offset = 3, }, [AS3722_IRQ_TEMP_SD6_ALARM] = { .mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_ALARM, .reg_offset = 3, }, [AS3722_IRQ_OCCUR_ALARM_SD6] = { .mask = AS3722_INTERRUPT_MASK4_OCCUR_ALARM_SD6, .reg_offset = 3, }, [AS3722_IRQ_ADC] = { .mask = AS3722_INTERRUPT_MASK4_ADC, .reg_offset = 3, }, }; static const struct regmap_irq_chip as3722_irq_chip = { .name = "as3722", .irqs = as3722_irqs, .num_irqs = ARRAY_SIZE(as3722_irqs), .num_regs = 4, .status_base = AS3722_INTERRUPT_STATUS1_REG, .mask_base = AS3722_INTERRUPT_MASK1_REG, }; /* OTP version table * Version: ID1(90h): ID2(91h): ID3(CCh[7:4]) * 1v0 0Ch 0h 0h * 1v1 0Ch 1h 0h * 1v2 0Ch 1h 0h * 1v21 0Ch 1h 1h * * Note: for 1V1 and 1V2, the actual version is detected by platform data. * If there is no platfrom data then use the 1V1. */ static int as3722_check_device_id(struct as3722 *as3722) { u32 id1, id2, id3; int major, minor; int ret; /* Check that this is actually a AS3722 */ ret = as3722_read(as3722, AS3722_ASIC_ID1_REG, &id1); if (ret < 0) { dev_err(as3722->dev, "ASIC_ID1 read failed: %d\n", ret); return ret; } if (id1 != AS3722_DEVICE_ID) { dev_err(as3722->dev, "Device is not AS3722, ID is 0x%x\n", id1); return -ENODEV; } ret = as3722_read(as3722, AS3722_ASIC_ID2_REG, &id2); if (ret < 0) { dev_err(as3722->dev, "ASIC_ID2 read failed: %d\n", ret); return ret; } ret = as3722_read(as3722, AS3722_ASIC_ID3_REG, &id3); if (ret < 0) { dev_err(as3722->dev, "ASIC_ID3 read failed: %d\n", ret); return ret; } dev_info(as3722->dev, "AS3722 ID: ID1:ID2:ID3 = 0x%02x:0x%02x:0x%02x\n", id1, id2, id3); id3 = (id3 >> 4) & 0xF; major = 1; switch (id2) { case 0: if (id3 == 0) { minor = 0; } else { dev_err(as3722->dev, "Non supported IDs\n"); return -ENODEV; } break; case 1: if (id3 == 0) { minor = 1; } else if (id3 == 1) { minor = 21; } else { dev_err(as3722->dev, "Non supported IDs\n"); return -ENODEV; } break; default: dev_err(as3722->dev, "Non supported IDs\n"); return -ENODEV; } /* Override the major/minor for 1V1 and 1V2 only */ if (as3722->major_rev && as3722->minor_rev && (minor == 1)) { dev_info(as3722->dev, "Device version %dV%d and platform version %dV%d\n", major, minor, as3722->major_rev, as3722->minor_rev); } else { as3722->major_rev = major; as3722->minor_rev = minor; } dev_info(as3722->dev, "Final OTP version %dV%d\n", as3722->major_rev, as3722->minor_rev); return 0; } static int as3722_configure_pullups(struct as3722 *as3722) { int ret; u32 val = 0; if (as3722->en_intern_int_pullup) val |= AS3722_INT_PULL_UP; if (as3722->en_intern_i2c_pullup) val |= AS3722_I2C_PULL_UP; ret = as3722_update_bits(as3722, AS3722_IOVOLTAGE_REG, AS3722_INT_PULL_UP | AS3722_I2C_PULL_UP, val); if (ret < 0) dev_err(as3722->dev, "IOVOLTAGE_REG update failed: %d\n", ret); return ret; } static const struct regmap_range as3722_readable_ranges[] = { regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG), regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG), regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_REG_SEQU_MOD3_REG), regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG), regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG), regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG, AS3722_BATTERY_VOLTAGE_MONITOR2_REG), regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG), regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG), regmap_reg_range(AS3722_RTC_ACCESS_REG, AS3722_RTC_ACCESS_REG), regmap_reg_range(AS3722_RTC_STATUS_REG, AS3722_TEMP_STATUS_REG), regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC_CONFIGURATION_REG), regmap_reg_range(AS3722_ASIC_ID1_REG, AS3722_ASIC_ID2_REG), regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG), }; static const struct regmap_access_table as3722_readable_table = { .yes_ranges = as3722_readable_ranges, .n_yes_ranges = ARRAY_SIZE(as3722_readable_ranges), }; static const struct regmap_range as3722_writable_ranges[] = { regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG), regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG), regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_GPIO_SIGNAL_OUT_REG), regmap_reg_range(AS3722_REG_SEQU_MOD1_REG, AS3722_REG_SEQU_MOD3_REG), regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG), regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG), regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG, AS3722_BATTERY_VOLTAGE_MONITOR2_REG), regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG), regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG), regmap_reg_range(AS3722_INTERRUPT_MASK1_REG, AS3722_TEMP_STATUS_REG), regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC1_CONTROL_REG), regmap_reg_range(AS3722_ADC1_THRESHOLD_HI_MSB_REG, AS3722_ADC_CONFIGURATION_REG), regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG), }; static void as3722_regmap_config_lock(void *lock) { struct as3722 *as3722 = lock; if (as3722->shutdown && (in_atomic() || irqs_disabled())) { dev_info(as3722->dev, "Xfer without lock\n"); return; } mutex_lock(&as3722->mutex_config); } static void as3722_regmap_config_unlock(void *lock) { struct as3722 *as3722 = lock; if (as3722->shutdown && (in_atomic() || irqs_disabled())) return; mutex_unlock(&as3722->mutex_config); } static const struct regmap_access_table as3722_writable_table = { .yes_ranges = as3722_writable_ranges, .n_yes_ranges = ARRAY_SIZE(as3722_writable_ranges), }; static const struct regmap_range as3722_cacheable_ranges[] = { regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_LDO11_VOLTAGE_REG), regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_LDOCONTROL1_REG), }; static const struct regmap_access_table as3722_volatile_table = { .no_ranges = as3722_cacheable_ranges, .n_no_ranges = ARRAY_SIZE(as3722_cacheable_ranges), }; static const struct regmap_range vsel_sd_range = regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG); static const struct regmap_range vsel_ldo_range = regmap_reg_range(AS3722_LDO0_VOLTAGE_REG, AS3722_LDO11_VOLTAGE_REG); bool is_volatile_as3722_register(struct device *dev, unsigned int reg) { if (regmap_reg_in_range(reg, &vsel_sd_range) || regmap_reg_in_range(reg, &vsel_ldo_range)) { struct as3722 *as3722 = dev_get_drvdata(dev); return test_bit(reg, as3722->volatile_vsel_registers); } if (regmap_reg_in_ranges(reg, as3722_volatile_table.no_ranges, as3722_volatile_table.n_no_ranges)) return false; return true; } int as3722_vsel_volatile_set(struct device *dev, unsigned int reg, bool is_volatile) { if (regmap_reg_in_range(reg, &vsel_sd_range) || regmap_reg_in_range(reg, &vsel_ldo_range)) { struct as3722 *as3722 = dev_get_drvdata(dev); if (is_volatile) set_bit(reg, as3722->volatile_vsel_registers); else clear_bit(reg, as3722->volatile_vsel_registers); return 0; } return -EINVAL; } static struct regmap_config as3722_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = AS3722_MAX_REGISTER, .cache_type = REGCACHE_RBTREE, .rd_table = &as3722_readable_table, .wr_table = &as3722_writable_table, .volatile_reg = is_volatile_as3722_register, .lock = as3722_regmap_config_lock, .unlock = as3722_regmap_config_unlock, .reg_volatile_set = as3722_vsel_volatile_set, }; static int as3722_i2c_of_probe(struct i2c_client *i2c, struct as3722 *as3722) { struct device_node *np = i2c->dev.of_node; struct irq_data *irq_data; if (!np) { dev_err(&i2c->dev, "Device Tree not found\n"); return -EINVAL; } irq_data = irq_get_irq_data(i2c->irq); if (!irq_data) { dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq); return -EINVAL; } as3722->en_intern_int_pullup = of_property_read_bool(np, "ams,enable-internal-int-pullup"); as3722->en_intern_i2c_pullup = of_property_read_bool(np, "ams,enable-internal-i2c-pullup"); as3722->en_ac_ok_pwr_on = of_property_read_bool(np, "ams,enable-ac-ok-power-on"); as3722->irq_flags = irqd_get_trigger_type(irq_data); as3722->irq_base = -1; of_property_read_u32(np, "ams,major-rev", &as3722->major_rev); of_property_read_u32(np, "ams,minor-rev", &as3722->minor_rev); as3722->backup_battery_chargable = of_property_read_bool(np, "ams,backup-battery-chargable"); of_property_read_u32(np, "ams,battery-backup-charge-current", &as3722->backup_battery_charge_current); as3722->battery_backup_enable_bypass = of_property_read_bool(np, "ams,battery-backup-enable-bypass"); of_property_read_u32(np, "ams,battery-backup-charge-mode", &as3722->battery_backup_charge_mode); of_property_read_u32(np, "ams,oc-pg-mask", &as3722->oc_pg_mask); dev_dbg(&i2c->dev, "IRQ flags are 0x%08lx\n", as3722->irq_flags); return 0; } static int as3722_i2c_non_of_probe(struct i2c_client *i2c, struct as3722 *as3722) { struct as3722_platform_data *pdata = dev_get_platdata(&i2c->dev); if (!pdata) return -EINVAL; as3722->irq_flags = pdata->irq_type; as3722->irq_base = pdata->irq_base; as3722->en_intern_i2c_pullup = pdata->use_internal_i2c_pullup; as3722->en_intern_int_pullup = pdata->use_internal_int_pullup; as3722->en_ac_ok_pwr_on = pdata->enable_ac_ok_power_on; as3722->major_rev = pdata->major_rev; as3722->minor_rev = pdata->minor_rev; as3722->backup_battery_chargable = pdata->backup_battery_chargable; as3722->backup_battery_charge_current = pdata->backup_battery_charge_current; as3722->battery_backup_enable_bypass = pdata->battery_backup_enable_bypass; as3722->battery_backup_charge_mode = pdata->battery_backup_charge_mode; as3722->oc_pg_mask = pdata->oc_pg_mask; return 0; } static int as3722_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct as3722 *as3722; unsigned long irq_flags; int ret; u8 val = 0; as3722 = devm_kzalloc(&i2c->dev, sizeof(struct as3722), GFP_KERNEL); if (!as3722) return -ENOMEM; as3722->dev = &i2c->dev; as3722->chip_irq = i2c->irq; i2c_set_clientdata(i2c, as3722); as3722->client = i2c; ret = as3722_i2c_non_of_probe(i2c, as3722); if (ret < 0) { ret = as3722_i2c_of_probe(i2c, as3722); if (ret < 0) return ret; } mutex_init(&as3722->mutex_config); as3722_regmap_config.lock_arg = as3722; as3722->regmap = devm_regmap_init_i2c(i2c, (const struct regmap_config *)&as3722_regmap_config); if (IS_ERR(as3722->regmap)) { ret = PTR_ERR(as3722->regmap); dev_err(&i2c->dev, "regmap init failed: %d\n", ret); return ret; } ret = as3722_check_device_id(as3722); if (ret < 0) return ret; irq_flags = as3722->irq_flags | IRQF_ONESHOT; ret = regmap_add_irq_chip(as3722->regmap, as3722->chip_irq, irq_flags, as3722->irq_base, &as3722_irq_chip, &as3722->irq_data); if (ret < 0) { dev_err(as3722->dev, "Failed to add regmap irq: %d\n", ret); return ret; } ret = as3722_configure_pullups(as3722); if (ret < 0) goto scrub; if (as3722->en_ac_ok_pwr_on) val = AS3722_CTRL_SEQ1_AC_OK_PWR_ON; ret = as3722_update_bits(as3722, AS3722_CTRL_SEQU1_REG, AS3722_CTRL_SEQ1_AC_OK_PWR_ON, val); if (ret < 0) { dev_err(as3722->dev, "CTRL_SEQ1 update failed: %d\n", ret); goto scrub; } if (as3722->backup_battery_chargable) { ret = as3722_update_bits(as3722, AS3722_BB_CHARGER_REG, AS3722_BBCCUR_MASK, AS3722_BBCCUR_VAL(as3722->backup_battery_charge_current) ); if (ret < 0) { dev_err(as3722->dev, "BB_CHARGING current update failed: %d\n", ret); goto scrub; } if (as3722->battery_backup_enable_bypass) val = AS3722_BBCRESOFF_MASK; else val = 0; ret = as3722_update_bits(as3722, AS3722_BB_CHARGER_REG, AS3722_BBCRESOFF_MASK, val); if (ret < 0) { dev_err(as3722->dev, "BB_CHARGING reg offset update failed: %d\n", ret); goto scrub; } ret = as3722_update_bits(as3722, AS3722_BB_CHARGER_REG, AS3722_BBCMODE_MASK, as3722->battery_backup_charge_mode); if (ret < 0) { dev_err(as3722->dev, "BB_CHARGING mode update failed: %d\n", ret); goto scrub; } } if (as3722->oc_pg_mask) { unsigned int mask1 = 0; unsigned int mask2 = 0; unsigned int oc_pg_mask = as3722->oc_pg_mask; if (oc_pg_mask & AS3722_OC_PG_MASK_AC_OK) mask1 |= AS3722_PG_AC_OK_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_GPIO3) mask1 |= AS3722_PG_GPIO3_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_GPIO4) mask1 |= AS3722_PG_GPIO4_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_GPIO5) mask1 |= AS3722_PG_GPIO5_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_PWRGOOD_SD0) mask1 |= AS3722_PG_PWRGOOD_SD0_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_OVCURR_SD0) mask1 |= AS3722_PG_OVCURR_SD0_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_POWERGOOD_SD6) mask2 |= AS3722_PG_POWERGOOD_SD6_MASK; if (oc_pg_mask & AS3722_OC_PG_MASK_OVCURR_SD6) mask2 |= AS3722_PG_OVCURR_SD6_MASK; ret = as3722_update_bits(as3722, AS3722_OC_PG_CTRL_REG, mask1, mask1); if (ret < 0) { dev_err(as3722->dev, "oc_pg_ctrl update failed: %d\n", ret); goto scrub; } ret = as3722_update_bits(as3722, AS3722_OC_PG_CTRL2_REG, mask2, mask2); if (ret < 0) { dev_err(as3722->dev, "oc_pg_ctrl2 update failed: %d\n", ret); goto scrub; } } ret = mfd_add_devices(&i2c->dev, -1, as3722_devs, ARRAY_SIZE(as3722_devs), NULL, 0, regmap_irq_get_domain(as3722->irq_data)); if (ret) { dev_err(as3722->dev, "Failed to add MFD devices: %d\n", ret); goto scrub; } dev_dbg(as3722->dev, "AS3722 core driver initialized successfully\n"); return 0; scrub: regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data); return ret; } static int as3722_i2c_remove(struct i2c_client *i2c) { struct as3722 *as3722 = i2c_get_clientdata(i2c); mfd_remove_devices(as3722->dev); regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data); return 0; } static int as3722_i2c_suspend_no_irq(struct device *dev) { struct as3722 *as3722 = dev_get_drvdata(dev); return regmap_irq_suspend_noirq(as3722->irq_data); } static int palmas_i2c_resume(struct device *dev) { struct as3722 *as3722 = dev_get_drvdata(dev); return regmap_irq_resume(as3722->irq_data); } static void as3722_i2c_shutdown(struct i2c_client *i2c) { struct as3722 *as3722 = i2c_get_clientdata(i2c); as3722->shutdown = true; } static const struct of_device_id as3722_of_match[] = { { .compatible = "ams,as3722", }, {}, }; MODULE_DEVICE_TABLE(of, as3722_of_match); static const struct i2c_device_id as3722_i2c_id[] = { { "as3722", 0 }, {}, }; MODULE_DEVICE_TABLE(i2c, as3722_i2c_id); static const struct dev_pm_ops as3722_pm_ops = { .suspend_noirq = as3722_i2c_suspend_no_irq, .resume = palmas_i2c_resume, }; static struct i2c_driver as3722_i2c_driver = { .driver = { .name = "as3722", .owner = THIS_MODULE, .of_match_table = as3722_of_match, .pm = &as3722_pm_ops, }, .probe = as3722_i2c_probe, .remove = as3722_i2c_remove, .shutdown = as3722_i2c_shutdown, .id_table = as3722_i2c_id, }; static int __init as3722_i2c_init(void) { return i2c_add_driver(&as3722_i2c_driver); } subsys_initcall(as3722_i2c_init); static void __exit as3722_i2c_exit(void) { i2c_del_driver(&as3722_i2c_driver); } module_exit(as3722_i2c_exit); MODULE_DESCRIPTION("I2C support for AS3722 PMICs"); MODULE_AUTHOR("Florian Lobmaier "); MODULE_AUTHOR("Laxman Dewangan "); MODULE_LICENSE("GPL");