// SPDX-License-Identifier: GPL-2.0-only // // DA9121 Single-channel dual-phase 10A buck converter // // Copyright (C) 2020 Axis Communications AB // // DA9130 Single-channel dual-phase 10A buck converter (Automotive) // DA9217 Single-channel dual-phase 6A buck converter // DA9122 Dual-channel single-phase 5A buck converter // DA9131 Dual-channel single-phase 5A buck converter (Automotive) // DA9220 Dual-channel single-phase 3A buck converter // DA9132 Dual-channel single-phase 3A buck converter (Automotive) // // Copyright (C) 2020 Dialog Semiconductor #include #include #include #include #include #include #include #include #include #include #include "da9121-regulator.h" /* Chip data */ struct da9121 { struct device *dev; struct da9121_pdata *pdata; struct regmap *regmap; struct regulator_dev *rdev[DA9121_IDX_MAX]; int variant_id; }; /* Define ranges for different variants, enabling translation to/from * registers. Maximums give scope to allow for transients. */ struct da9121_range { int val_min; int val_max; int val_stp; int reg_min; int reg_max; }; struct da9121_range da9121_10A_2phase_current = { .val_min = 7000000, .val_max = 20000000, .val_stp = 1000000, .reg_min = 1, .reg_max = 14, }; struct da9121_range da9121_6A_2phase_current = { .val_min = 7000000, .val_max = 12000000, .val_stp = 1000000, .reg_min = 1, .reg_max = 6, }; struct da9121_range da9121_5A_1phase_current = { .val_min = 3500000, .val_max = 10000000, .val_stp = 500000, .reg_min = 1, .reg_max = 14, }; struct da9121_range da9121_3A_1phase_current = { .val_min = 3500000, .val_max = 6000000, .val_stp = 500000, .reg_min = 1, .reg_max = 6, }; struct da9121_variant_info { int num_bucks; int num_phases; struct da9121_range *current_range; }; static const struct da9121_variant_info variant_parameters[] = { { 1, 2, &da9121_10A_2phase_current }, //DA9121_TYPE_DA9121_DA9130 { 2, 1, &da9121_3A_1phase_current }, //DA9121_TYPE_DA9220_DA9132 { 2, 1, &da9121_5A_1phase_current }, //DA9121_TYPE_DA9122_DA9131 { 1, 2, &da9121_6A_2phase_current }, //DA9121_TYPE_DA9217 }; struct da9121_field { unsigned int reg; unsigned int msk; }; static const struct da9121_field da9121_current_field[2] = { { DA9121_REG_BUCK_BUCK1_2, DA9121_MASK_BUCK_BUCKx_2_CHx_ILIM }, { DA9xxx_REG_BUCK_BUCK2_2, DA9121_MASK_BUCK_BUCKx_2_CHx_ILIM }, }; static int da9121_get_current_limit(struct regulator_dev *rdev) { struct da9121 *chip = rdev_get_drvdata(rdev); int id = rdev_get_id(rdev); struct da9121_range *range = variant_parameters[chip->variant_id].current_range; unsigned int val = 0; int ret = 0; ret = regmap_read(chip->regmap, da9121_current_field[id].reg, &val); if (ret < 0) { dev_err(chip->dev, "Cannot read BUCK register: %d\n", ret); goto error; } if (val < range->reg_min) { ret = -EACCES; goto error; } if (val > range->reg_max) { ret = -EINVAL; goto error; } return range->val_min + (range->val_stp * (val - range->reg_min)); error: return ret; } static int da9121_ceiling_selector(struct regulator_dev *rdev, int min, int max, unsigned int *selector) { struct da9121 *chip = rdev_get_drvdata(rdev); struct da9121_range *range = variant_parameters[chip->variant_id].current_range; unsigned int level; unsigned int i = 0; unsigned int sel = 0; int ret = 0; if (range->val_min > max || range->val_max < min) { dev_err(chip->dev, "Requested current out of regulator capability\n"); ret = -EINVAL; goto error; } level = range->val_max; for (i = range->reg_max; i >= range->reg_min; i--) { if (level <= max) { sel = i; break; } level -= range->val_stp; } if (level < min) { dev_err(chip->dev, "Best match falls below minimum requested current\n"); ret = -EINVAL; goto error; } *selector = sel; error: return ret; } static int da9121_set_current_limit(struct regulator_dev *rdev, int min_ua, int max_ua) { struct da9121 *chip = rdev_get_drvdata(rdev); int id = rdev_get_id(rdev); struct da9121_range *range = variant_parameters[chip->variant_id].current_range; unsigned int sel = 0; int ret = 0; if (min_ua < range->val_min || max_ua > range->val_max) { ret = -EINVAL; goto error; } ret = da9121_ceiling_selector(rdev, min_ua, max_ua, &sel); if (ret < 0) goto error; ret = regmap_update_bits(chip->regmap, da9121_current_field[id].reg, da9121_current_field[id].msk, (unsigned int)sel); if (ret < 0) dev_err(chip->dev, "Cannot update BUCK current limit, err: %d\n", ret); error: return ret; } static const struct regulator_ops da9121_buck_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, .get_current_limit = da9121_get_current_limit, .set_current_limit = da9121_set_current_limit, }; static struct of_regulator_match da9121_matches[] = { [DA9121_IDX_BUCK1] = { .name = "buck1" }, [DA9121_IDX_BUCK2] = { .name = "buck2" }, }; static int da9121_of_parse_cb(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *config) { struct da9121 *chip = config->driver_data; struct da9121_pdata *pdata; struct gpio_desc *ena_gpiod; if (chip->pdata == NULL) { pdata = devm_kzalloc(chip->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; } else { pdata = chip->pdata; } pdata->num_buck++; if (pdata->num_buck > variant_parameters[chip->variant_id].num_bucks) { dev_err(chip->dev, "Error: excessive regulators for device\n"); return -ENODEV; } ena_gpiod = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0, GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE, "da9121-enable"); if (!IS_ERR(ena_gpiod)) config->ena_gpiod = ena_gpiod; if (variant_parameters[chip->variant_id].num_bucks == 2) { uint32_t ripple_cancel; uint32_t ripple_reg; int ret; if (of_property_read_u32(da9121_matches[pdata->num_buck].of_node, "dlg,ripple-cancel", &ripple_cancel)) { if (pdata->num_buck > 1) ripple_reg = DA9xxx_REG_BUCK_BUCK2_7; else ripple_reg = DA9121_REG_BUCK_BUCK1_7; ret = regmap_update_bits(chip->regmap, ripple_reg, DA9xxx_MASK_BUCK_BUCKx_7_CHx_RIPPLE_CANCEL, ripple_cancel); if (ret < 0) dev_err(chip->dev, "Cannot set ripple mode, err: %d\n", ret); } } return 0; } #define DA9121_MIN_MV 300 #define DA9121_MAX_MV 1900 #define DA9121_STEP_MV 10 #define DA9121_MIN_SEL (DA9121_MIN_MV / DA9121_STEP_MV) #define DA9121_N_VOLTAGES (((DA9121_MAX_MV - DA9121_MIN_MV) / DA9121_STEP_MV) \ + 1 + DA9121_MIN_SEL) static const struct regulator_desc da9121_reg = { .id = DA9121_IDX_BUCK1, .name = "da9121", .of_match = "buck1", .of_parse_cb = da9121_of_parse_cb, .owner = THIS_MODULE, .regulators_node = of_match_ptr("regulators"), .ops = &da9121_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = DA9121_N_VOLTAGES, .min_uV = DA9121_MIN_MV * 1000, .uV_step = DA9121_STEP_MV * 1000, .linear_min_sel = DA9121_MIN_SEL, .vsel_reg = DA9121_REG_BUCK_BUCK1_5, .vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT, .enable_reg = DA9121_REG_BUCK_BUCK1_0, .enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN, /* Default value of BUCK_BUCK1_0.CH1_SRC_DVC_UP */ .ramp_delay = 20000, /* tBUCK_EN */ .enable_time = 20, }; static const struct regulator_desc da9220_reg[2] = { { .id = DA9121_IDX_BUCK1, .name = "DA9220/DA9132 BUCK1", .of_match = "buck1", .of_parse_cb = da9121_of_parse_cb, .owner = THIS_MODULE, .regulators_node = of_match_ptr("regulators"), .ops = &da9121_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = DA9121_N_VOLTAGES, .min_uV = DA9121_MIN_MV * 1000, .uV_step = DA9121_STEP_MV * 1000, .linear_min_sel = DA9121_MIN_SEL, .enable_reg = DA9121_REG_BUCK_BUCK1_0, .enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN, .vsel_reg = DA9121_REG_BUCK_BUCK1_5, .vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT, }, { .id = DA9121_IDX_BUCK2, .name = "DA9220/DA9132 BUCK2", .of_match = "buck2", .of_parse_cb = da9121_of_parse_cb, .owner = THIS_MODULE, .regulators_node = of_match_ptr("regulators"), .ops = &da9121_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = DA9121_N_VOLTAGES, .min_uV = DA9121_MIN_MV * 1000, .uV_step = DA9121_STEP_MV * 1000, .linear_min_sel = DA9121_MIN_SEL, .enable_reg = DA9xxx_REG_BUCK_BUCK2_0, .enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN, .vsel_reg = DA9xxx_REG_BUCK_BUCK2_5, .vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT, } }; static const struct regulator_desc da9122_reg[2] = { { .id = DA9121_IDX_BUCK1, .name = "DA9122/DA9131 BUCK1", .of_match = "buck1", .of_parse_cb = da9121_of_parse_cb, .owner = THIS_MODULE, .regulators_node = of_match_ptr("regulators"), .ops = &da9121_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = DA9121_N_VOLTAGES, .min_uV = DA9121_MIN_MV * 1000, .uV_step = DA9121_STEP_MV * 1000, .linear_min_sel = DA9121_MIN_SEL, .enable_reg = DA9121_REG_BUCK_BUCK1_0, .enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN, .vsel_reg = DA9121_REG_BUCK_BUCK1_5, .vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT, }, { .id = DA9121_IDX_BUCK2, .name = "DA9122/DA9131 BUCK2", .of_match = "buck2", .of_parse_cb = da9121_of_parse_cb, .owner = THIS_MODULE, .regulators_node = of_match_ptr("regulators"), .ops = &da9121_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = DA9121_N_VOLTAGES, .min_uV = DA9121_MIN_MV * 1000, .uV_step = DA9121_STEP_MV * 1000, .linear_min_sel = DA9121_MIN_SEL, .enable_reg = DA9xxx_REG_BUCK_BUCK2_0, .enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN, .vsel_reg = DA9xxx_REG_BUCK_BUCK2_5, .vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT, } }; static const struct regulator_desc da9217_reg = { .id = DA9121_IDX_BUCK1, .name = "DA9217 BUCK1", .of_match = "buck1", .of_parse_cb = da9121_of_parse_cb, .owner = THIS_MODULE, .regulators_node = of_match_ptr("regulators"), .ops = &da9121_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = DA9121_N_VOLTAGES, .min_uV = DA9121_MIN_MV * 1000, .uV_step = DA9121_STEP_MV * 1000, .linear_min_sel = DA9121_MIN_SEL, .enable_reg = DA9121_REG_BUCK_BUCK1_0, .enable_mask = DA9121_MASK_BUCK_BUCKx_0_CHx_EN, .vsel_reg = DA9121_REG_BUCK_BUCK1_5, .vsel_mask = DA9121_MASK_BUCK_BUCKx_5_CHx_A_VOUT, }; static const struct regulator_desc *local_da9121_regulators[][DA9121_IDX_MAX] = { [DA9121_TYPE_DA9121_DA9130] = { &da9121_reg, NULL }, [DA9121_TYPE_DA9220_DA9132] = { &da9220_reg[0], &da9220_reg[1] }, [DA9121_TYPE_DA9122_DA9131] = { &da9122_reg[0], &da9122_reg[1] }, [DA9121_TYPE_DA9217] = { &da9217_reg, NULL }, }; static int da9121_set_regulator_config(struct da9121 *chip) { struct regulator_config config = { }; unsigned int max_matches = variant_parameters[chip->variant_id].num_bucks; int ret = 0; int i; for (i = 0; i < max_matches; i++) { const struct regulator_desc *regl_desc = local_da9121_regulators[chip->variant_id][i]; config.dev = chip->dev; config.driver_data = chip; config.regmap = chip->regmap; chip->rdev[i] = devm_regulator_register(chip->dev, regl_desc, &config); if (IS_ERR(chip->rdev[i])) { dev_err(chip->dev, "Failed to register regulator %s, %d/%d\n", regl_desc->name, (i+1), max_matches); ret = PTR_ERR(chip->rdev[i]); goto error; } } error: return ret; } /* DA9121 chip register model */ static const struct regmap_range da9121_1ch_readable_ranges[] = { regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_MASK_3), regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3), regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1), regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_6), regmap_reg_range(DA9121_REG_OTP_DEVICE_ID, DA9121_REG_OTP_CONFIG_ID), }; static const struct regmap_access_table da9121_1ch_readable_table = { .yes_ranges = da9121_1ch_readable_ranges, .n_yes_ranges = ARRAY_SIZE(da9121_1ch_readable_ranges), }; static const struct regmap_range da9121_2ch_readable_ranges[] = { regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_MASK_3), regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3), regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1), regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_7), regmap_reg_range(DA9xxx_REG_BUCK_BUCK2_0, DA9xxx_REG_BUCK_BUCK2_7), regmap_reg_range(DA9121_REG_OTP_DEVICE_ID, DA9121_REG_OTP_CONFIG_ID), }; static const struct regmap_access_table da9121_2ch_readable_table = { .yes_ranges = da9121_2ch_readable_ranges, .n_yes_ranges = ARRAY_SIZE(da9121_2ch_readable_ranges), }; static const struct regmap_range da9121_1ch_writeable_ranges[] = { regmap_reg_range(DA9121_REG_SYS_EVENT_0, DA9121_REG_SYS_MASK_3), regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3), regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1), regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_2), regmap_reg_range(DA9121_REG_BUCK_BUCK1_4, DA9121_REG_BUCK_BUCK1_6), }; static const struct regmap_access_table da9121_1ch_writeable_table = { .yes_ranges = da9121_1ch_writeable_ranges, .n_yes_ranges = ARRAY_SIZE(da9121_1ch_writeable_ranges), }; static const struct regmap_range da9121_2ch_writeable_ranges[] = { regmap_reg_range(DA9121_REG_SYS_EVENT_0, DA9121_REG_SYS_MASK_3), regmap_reg_range(DA9121_REG_SYS_CONFIG_2, DA9121_REG_SYS_CONFIG_3), regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1), regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_2), regmap_reg_range(DA9121_REG_BUCK_BUCK1_4, DA9121_REG_BUCK_BUCK1_7), regmap_reg_range(DA9xxx_REG_BUCK_BUCK2_0, DA9xxx_REG_BUCK_BUCK2_2), regmap_reg_range(DA9xxx_REG_BUCK_BUCK2_4, DA9xxx_REG_BUCK_BUCK2_7), }; static const struct regmap_access_table da9121_2ch_writeable_table = { .yes_ranges = da9121_2ch_writeable_ranges, .n_yes_ranges = ARRAY_SIZE(da9121_2ch_writeable_ranges), }; static const struct regmap_range da9121_volatile_ranges[] = { regmap_reg_range(DA9121_REG_SYS_STATUS_0, DA9121_REG_SYS_EVENT_2), regmap_reg_range(DA9121_REG_SYS_GPIO0_0, DA9121_REG_SYS_GPIO2_1), regmap_reg_range(DA9121_REG_BUCK_BUCK1_0, DA9121_REG_BUCK_BUCK1_6), }; static const struct regmap_access_table da9121_volatile_table = { .yes_ranges = da9121_volatile_ranges, .n_yes_ranges = ARRAY_SIZE(da9121_volatile_ranges), }; /* DA9121 regmap config for 1 channel variants */ static struct regmap_config da9121_1ch_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = DA9121_REG_OTP_CONFIG_ID, .rd_table = &da9121_1ch_readable_table, .wr_table = &da9121_1ch_writeable_table, .volatile_table = &da9121_volatile_table, .cache_type = REGCACHE_RBTREE, }; /* DA9121 regmap config for 2 channel variants */ static struct regmap_config da9121_2ch_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = DA9121_REG_OTP_CONFIG_ID, .rd_table = &da9121_2ch_readable_table, .wr_table = &da9121_2ch_writeable_table, .volatile_table = &da9121_volatile_table, .cache_type = REGCACHE_RBTREE, }; static int da9121_check_device_type(struct i2c_client *i2c, struct da9121 *chip) { u32 device_id; u8 chip_id = chip->variant_id; u32 variant_id; u8 variant_mrc, variant_vrc; char *type; const char *name; bool config_match = false; int ret = 0; ret = regmap_read(chip->regmap, DA9121_REG_OTP_DEVICE_ID, &device_id); if (ret < 0) { dev_err(chip->dev, "Cannot read device ID: %d\n", ret); goto error; } ret = regmap_read(chip->regmap, DA9121_REG_OTP_VARIANT_ID, &variant_id); if (ret < 0) { dev_err(chip->dev, "Cannot read variant ID: %d\n", ret); goto error; } if (device_id != DA9121_DEVICE_ID) { dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id); ret = -ENODEV; goto error; } variant_vrc = variant_id & DA9121_MASK_OTP_VARIANT_ID_VRC; switch (variant_vrc) { case DA9121_VARIANT_VRC: type = "DA9121/DA9130"; config_match = (chip_id == DA9121_TYPE_DA9121_DA9130); break; case DA9220_VARIANT_VRC: type = "DA9220/DA9132"; config_match = (chip_id == DA9121_TYPE_DA9220_DA9132); break; case DA9122_VARIANT_VRC: type = "DA9122/DA9131"; config_match = (chip_id == DA9121_TYPE_DA9122_DA9131); break; case DA9217_VARIANT_VRC: type = "DA9217"; config_match = (chip_id == DA9121_TYPE_DA9217); break; default: type = "Unknown"; break; } dev_info(chip->dev, "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n", device_id, variant_id, type); if (!config_match) { dev_err(chip->dev, "Device tree configuration '%s' does not match detected device.\n", name); ret = -EINVAL; goto error; } variant_mrc = (variant_id & DA9121_MASK_OTP_VARIANT_ID_MRC) >> DA9121_SHIFT_OTP_VARIANT_ID_MRC; if ((device_id == DA9121_DEVICE_ID) && (variant_mrc < DA9121_VARIANT_MRC_BASE)) { dev_err(chip->dev, "Cannot support variant MRC: 0x%02X\n", variant_mrc); ret = -EINVAL; } error: return ret; } static int da9121_assign_chip_model(struct i2c_client *i2c, struct da9121 *chip) { struct regmap_config *regmap; int ret = 0; chip->dev = &i2c->dev; switch (chip->variant_id) { case DA9121_TYPE_DA9121_DA9130: fallthrough; case DA9121_TYPE_DA9217: regmap = &da9121_1ch_regmap_config; break; case DA9121_TYPE_DA9122_DA9131: fallthrough; case DA9121_TYPE_DA9220_DA9132: regmap = &da9121_2ch_regmap_config; break; } /* Set these up for of_regulator_match call which may want .of_map_modes */ da9121_matches[0].desc = local_da9121_regulators[chip->variant_id][0]; da9121_matches[1].desc = local_da9121_regulators[chip->variant_id][1]; chip->regmap = devm_regmap_init_i2c(i2c, regmap); if (IS_ERR(chip->regmap)) { ret = PTR_ERR(chip->regmap); dev_err(chip->dev, "Failed to configure a register map: %d\n", ret); } ret = da9121_check_device_type(i2c, chip); return ret; } static const struct of_device_id da9121_dt_ids[] = { { .compatible = "dlg,da9121", .data = (void *) DA9121_TYPE_DA9121_DA9130 }, { .compatible = "dlg,da9130", .data = (void *) DA9121_TYPE_DA9121_DA9130 }, { .compatible = "dlg,da9217", .data = (void *) DA9121_TYPE_DA9217 }, { .compatible = "dlg,da9122", .data = (void *) DA9121_TYPE_DA9122_DA9131 }, { .compatible = "dlg,da9131", .data = (void *) DA9121_TYPE_DA9122_DA9131 }, { .compatible = "dlg,da9220", .data = (void *) DA9121_TYPE_DA9220_DA9132 }, { .compatible = "dlg,da9132", .data = (void *) DA9121_TYPE_DA9220_DA9132 }, { } }; MODULE_DEVICE_TABLE(of, da9121_dt_ids); static inline int da9121_of_get_id(struct device *dev) { const struct of_device_id *id = of_match_device(da9121_dt_ids, dev); if (!id) { dev_err(dev, "%s: Failed\n", __func__); return -EINVAL; } return (uintptr_t)id->data; } static int da9121_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct da9121 *chip; int ret = 0; chip = devm_kzalloc(&i2c->dev, sizeof(struct da9121), GFP_KERNEL); if (!chip) { ret = -ENOMEM; goto error; } chip->pdata = i2c->dev.platform_data; chip->variant_id = da9121_of_get_id(&i2c->dev); ret = da9121_assign_chip_model(i2c, chip); if (ret < 0) goto error; ret = da9121_set_regulator_config(chip); error: return ret; } static const struct i2c_device_id da9121_i2c_id[] = { {"da9121", DA9121_TYPE_DA9121_DA9130}, {"da9130", DA9121_TYPE_DA9121_DA9130}, {"da9217", DA9121_TYPE_DA9217}, {"da9122", DA9121_TYPE_DA9122_DA9131}, {"da9131", DA9121_TYPE_DA9122_DA9131}, {"da9220", DA9121_TYPE_DA9220_DA9132}, {"da9132", DA9121_TYPE_DA9220_DA9132}, {}, }; MODULE_DEVICE_TABLE(i2c, da9121_i2c_id); static struct i2c_driver da9121_regulator_driver = { .driver = { .name = "da9121", .of_match_table = of_match_ptr(da9121_dt_ids), }, .probe = da9121_i2c_probe, .id_table = da9121_i2c_id, }; module_i2c_driver(da9121_regulator_driver); MODULE_LICENSE("GPL v2");