diff options
Diffstat (limited to 'drivers/regulator/tps65023-regulator.c')
| -rw-r--r-- | drivers/regulator/tps65023-regulator.c | 327 |
1 files changed, 117 insertions, 210 deletions
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index 9d053e23e9eb..3334b5b7d907 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tps65023-regulator.c * * Supports TPS65023 Regulator * - * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/ - * - * 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 version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, - * whether express or implied; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. + * Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/ */ #include <linux/kernel.h> @@ -86,6 +78,42 @@ #define TPS65023_MAX_REG_ID TPS65023_LDO_2 +#define TPS65023_REGULATOR_DCDC(_num, _t, _em) \ + { \ + .name = "VDCDC"#_num, \ + .of_match = of_match_ptr("VDCDC"#_num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = TPS65023_DCDC_##_num, \ + .n_voltages = ARRAY_SIZE(_t), \ + .ops = &tps65023_dcdc_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .volt_table = _t, \ + .vsel_reg = TPS65023_REG_DEF_CORE, \ + .vsel_mask = ARRAY_SIZE(_t) - 1, \ + .enable_mask = _em, \ + .enable_reg = TPS65023_REG_REG_CTRL, \ + .apply_reg = TPS65023_REG_CON_CTRL2, \ + .apply_bit = TPS65023_REG_CTRL2_GO, \ + } \ + +#define TPS65023_REGULATOR_LDO(_num, _t, _vm) \ + { \ + .name = "LDO"#_num, \ + .of_match = of_match_ptr("LDO"#_num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = TPS65023_LDO_##_num, \ + .n_voltages = ARRAY_SIZE(_t), \ + .ops = &tps65023_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .volt_table = _t, \ + .vsel_reg = TPS65023_REG_LDO_CTRL, \ + .vsel_mask = _vm, \ + .enable_mask = 1 << (_num), \ + .enable_reg = TPS65023_REG_REG_CTRL, \ + } \ + /* Supported voltage values for regulators */ static const unsigned int VCORE_VSEL_table[] = { 800000, 825000, 850000, 875000, @@ -124,25 +152,16 @@ static const unsigned int TPS65023_LDO2_VSEL_table[] = { 2500000, 2800000, 3000000, 3300000, }; -/* Regulator specific details */ -struct tps_info { - const char *name; - u8 table_len; - const unsigned int *table; -}; - /* PMIC details */ struct tps_pmic { - struct regulator_desc desc[TPS65023_NUM_REGULATOR]; struct regulator_dev *rdev[TPS65023_NUM_REGULATOR]; - const struct tps_info *info[TPS65023_NUM_REGULATOR]; + const struct tps_driver_data *driver_data; struct regmap *regmap; - u8 core_regulator; }; /* Struct passed as driver data */ struct tps_driver_data { - const struct tps_info *info; + const struct regulator_desc *desc; u8 core_regulator; }; @@ -154,7 +173,7 @@ static int tps65023_dcdc_get_voltage_sel(struct regulator_dev *dev) if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) return -EINVAL; - if (dcdc != tps->core_regulator) + if (dcdc != tps->driver_data->core_regulator) return 0; return regulator_get_voltage_sel_regmap(dev); @@ -166,14 +185,14 @@ static int tps65023_dcdc_set_voltage_sel(struct regulator_dev *dev, struct tps_pmic *tps = rdev_get_drvdata(dev); int dcdc = rdev_get_id(dev); - if (dcdc != tps->core_regulator) + if (dcdc != tps->driver_data->core_regulator) return -EINVAL; return regulator_set_voltage_sel_regmap(dev, selector); } /* Operations permitted on VDCDCx */ -static struct regulator_ops tps65023_dcdc_ops = { +static const struct regulator_ops tps65023_dcdc_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, @@ -184,7 +203,7 @@ static struct regulator_ops tps65023_dcdc_ops = { }; /* Operations permitted on LDOx */ -static struct regulator_ops tps65023_ldo_ops = { +static const struct regulator_ops tps65023_ldo_ops = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, @@ -194,38 +213,65 @@ static struct regulator_ops tps65023_ldo_ops = { .map_voltage = regulator_map_voltage_ascend, }; -static struct regmap_config tps65023_regmap_config = { +static const struct regmap_config tps65023_regmap_config = { .reg_bits = 8, .val_bits = 8, }; -static int tps_65023_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static const struct regulator_desc tps65020_regulators[] = { + TPS65023_REGULATOR_DCDC(1, DCDC_FIXED_3300000_VSEL_table, 0x20), + TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_1800000_VSEL_table, 0x10), + TPS65023_REGULATOR_DCDC(3, VCORE_VSEL_table, 0x08), + TPS65023_REGULATOR_LDO(1, TPS65020_LDO_VSEL_table, 0x07), + TPS65023_REGULATOR_LDO(2, TPS65020_LDO_VSEL_table, 0x70), +}; + +static const struct regulator_desc tps65021_regulators[] = { + TPS65023_REGULATOR_DCDC(1, DCDC_FIXED_3300000_VSEL_table, 0x20), + TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_1800000_VSEL_table, 0x10), + TPS65023_REGULATOR_DCDC(3, VCORE_VSEL_table, 0x08), + TPS65023_REGULATOR_LDO(1, TPS65023_LDO1_VSEL_table, 0x07), + TPS65023_REGULATOR_LDO(2, TPS65023_LDO2_VSEL_table, 0x70), +}; + +static const struct regulator_desc tps65023_regulators[] = { + TPS65023_REGULATOR_DCDC(1, VCORE_VSEL_table, 0x20), + TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_3300000_VSEL_table, 0x10), + TPS65023_REGULATOR_DCDC(3, DCDC_FIXED_1800000_VSEL_table, 0x08), + TPS65023_REGULATOR_LDO(1, TPS65023_LDO1_VSEL_table, 0x07), + TPS65023_REGULATOR_LDO(2, TPS65023_LDO2_VSEL_table, 0x70), +}; + +static const struct tps_driver_data tps65020_drv_data = { + .desc = tps65020_regulators, + .core_regulator = TPS65023_DCDC_3, +}; + +static const struct tps_driver_data tps65021_drv_data = { + .desc = tps65021_regulators, + .core_regulator = TPS65023_DCDC_3, +}; + +static const struct tps_driver_data tps65023_drv_data = { + .desc = tps65023_regulators, + .core_regulator = TPS65023_DCDC_1, +}; + +static int tps_65023_probe(struct i2c_client *client) { - const struct tps_driver_data *drv_data = (void *)id->driver_data; - const struct tps_info *info = drv_data->info; + const struct i2c_device_id *id = i2c_client_get_device_id(client); + struct regulator_init_data *init_data = dev_get_platdata(&client->dev); struct regulator_config config = { }; - struct regulator_init_data *init_data; - struct regulator_dev *rdev; struct tps_pmic *tps; int i; int error; - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - - /** - * init_data points to array of regulator_init structures - * coming from the board-evm file. - */ - init_data = client->dev.platform_data; - if (!init_data) - return -EIO; - tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); if (!tps) return -ENOMEM; + tps->driver_data = (struct tps_driver_data *)id->driver_data; + tps->regmap = devm_regmap_init_i2c(client, &tps65023_regmap_config); if (IS_ERR(tps->regmap)) { error = PTR_ERR(tps->regmap); @@ -235,202 +281,63 @@ static int tps_65023_probe(struct i2c_client *client, } /* common for all regulators */ - tps->core_regulator = drv_data->core_regulator; - - for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) { - /* Store regulator specific information */ - tps->info[i] = info; - - tps->desc[i].name = info->name; - tps->desc[i].id = i; - tps->desc[i].n_voltages = info->table_len; - tps->desc[i].volt_table = info->table; - tps->desc[i].ops = (i > TPS65023_DCDC_3 ? - &tps65023_ldo_ops : &tps65023_dcdc_ops); - tps->desc[i].type = REGULATOR_VOLTAGE; - tps->desc[i].owner = THIS_MODULE; - - tps->desc[i].enable_reg = TPS65023_REG_REG_CTRL; - switch (i) { - case TPS65023_LDO_1: - tps->desc[i].vsel_reg = TPS65023_REG_LDO_CTRL; - tps->desc[i].vsel_mask = 0x07; - tps->desc[i].enable_mask = 1 << 1; - break; - case TPS65023_LDO_2: - tps->desc[i].vsel_reg = TPS65023_REG_LDO_CTRL; - tps->desc[i].vsel_mask = 0x70; - tps->desc[i].enable_mask = 1 << 2; - break; - default: /* DCDCx */ - tps->desc[i].enable_mask = - 1 << (TPS65023_NUM_REGULATOR - i); - tps->desc[i].vsel_reg = TPS65023_REG_DEF_CORE; - tps->desc[i].vsel_mask = info->table_len - 1; - tps->desc[i].apply_reg = TPS65023_REG_CON_CTRL2; - tps->desc[i].apply_bit = TPS65023_REG_CTRL2_GO; - } + config.dev = &client->dev; + config.driver_data = tps; + config.regmap = tps->regmap; - config.dev = &client->dev; - config.init_data = init_data; - config.driver_data = tps; - config.regmap = tps->regmap; + for (i = 0; i < TPS65023_NUM_REGULATOR; i++) { + if (init_data) + config.init_data = &init_data[i]; /* Register the regulators */ - rdev = regulator_register(&tps->desc[i], &config); - if (IS_ERR(rdev)) { + tps->rdev[i] = devm_regulator_register(&client->dev, + &tps->driver_data->desc[i], &config); + if (IS_ERR(tps->rdev[i])) { dev_err(&client->dev, "failed to register %s\n", id->name); - error = PTR_ERR(rdev); - goto fail; + return PTR_ERR(tps->rdev[i]); } - - /* Save regulator for cleanup */ - tps->rdev[i] = rdev; } i2c_set_clientdata(client, tps); /* Enable setting output voltage by I2C */ regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2, - TPS65023_REG_CTRL2_CORE_ADJ, TPS65023_REG_CTRL2_CORE_ADJ); + TPS65023_REG_CTRL2_CORE_ADJ, 0); return 0; - - fail: - while (--i >= 0) - regulator_unregister(tps->rdev[i]); - return error; } -static int tps_65023_remove(struct i2c_client *client) -{ - struct tps_pmic *tps = i2c_get_clientdata(client); - int i; - - for (i = 0; i < TPS65023_NUM_REGULATOR; i++) - regulator_unregister(tps->rdev[i]); - return 0; -} - -static const struct tps_info tps65020_regs[] = { - { - .name = "VDCDC1", - .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table), - .table = DCDC_FIXED_3300000_VSEL_table, - }, - { - .name = "VDCDC2", - .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table), - .table = DCDC_FIXED_1800000_VSEL_table, - }, - { - .name = "VDCDC3", - .table_len = ARRAY_SIZE(VCORE_VSEL_table), - .table = VCORE_VSEL_table, - }, - { - .name = "LDO1", - .table_len = ARRAY_SIZE(TPS65020_LDO_VSEL_table), - .table = TPS65020_LDO_VSEL_table, - }, - { - .name = "LDO2", - .table_len = ARRAY_SIZE(TPS65020_LDO_VSEL_table), - .table = TPS65020_LDO_VSEL_table, - }, -}; - -static const struct tps_info tps65021_regs[] = { - { - .name = "VDCDC1", - .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table), - .table = DCDC_FIXED_3300000_VSEL_table, - }, - { - .name = "VDCDC2", - .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table), - .table = DCDC_FIXED_1800000_VSEL_table, - }, - { - .name = "VDCDC3", - .table_len = ARRAY_SIZE(VCORE_VSEL_table), - .table = VCORE_VSEL_table, - }, - { - .name = "LDO1", - .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table), - .table = TPS65023_LDO1_VSEL_table, - }, - { - .name = "LDO2", - .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table), - .table = TPS65023_LDO2_VSEL_table, - }, +static const struct of_device_id __maybe_unused tps65023_of_match[] = { + { .compatible = "ti,tps65020", .data = &tps65020_drv_data}, + { .compatible = "ti,tps65021", .data = &tps65021_drv_data}, + { .compatible = "ti,tps65023", .data = &tps65023_drv_data}, + {}, }; +MODULE_DEVICE_TABLE(of, tps65023_of_match); -static const struct tps_info tps65023_regs[] = { - { - .name = "VDCDC1", - .table_len = ARRAY_SIZE(VCORE_VSEL_table), - .table = VCORE_VSEL_table, - }, - { - .name = "VDCDC2", - .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table), - .table = DCDC_FIXED_3300000_VSEL_table, - }, - { - .name = "VDCDC3", - .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table), - .table = DCDC_FIXED_1800000_VSEL_table, - }, - { - .name = "LDO1", - .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table), - .table = TPS65023_LDO1_VSEL_table, - }, +static const struct i2c_device_id tps_65023_id[] = { { - .name = "LDO2", - .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table), - .table = TPS65023_LDO2_VSEL_table, + .name = "tps65023", + .driver_data = (kernel_ulong_t)&tps65023_drv_data + }, { + .name = "tps65021", + .driver_data = (kernel_ulong_t)&tps65021_drv_data + }, { + .name = "tps65020", + .driver_data = (kernel_ulong_t)&tps65020_drv_data }, -}; - -static struct tps_driver_data tps65020_drv_data = { - .info = tps65020_regs, - .core_regulator = TPS65023_DCDC_3, -}; - -static struct tps_driver_data tps65021_drv_data = { - .info = tps65021_regs, - .core_regulator = TPS65023_DCDC_3, -}; - -static struct tps_driver_data tps65023_drv_data = { - .info = tps65023_regs, - .core_regulator = TPS65023_DCDC_1, -}; - -static const struct i2c_device_id tps_65023_id[] = { - {.name = "tps65023", - .driver_data = (unsigned long) &tps65023_drv_data}, - {.name = "tps65021", - .driver_data = (unsigned long) &tps65021_drv_data,}, - {.name = "tps65020", - .driver_data = (unsigned long) &tps65020_drv_data}, { }, }; - MODULE_DEVICE_TABLE(i2c, tps_65023_id); static struct i2c_driver tps_65023_i2c_driver = { .driver = { .name = "tps65023", - .owner = THIS_MODULE, + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + .of_match_table = of_match_ptr(tps65023_of_match), }, .probe = tps_65023_probe, - .remove = tps_65023_remove, .id_table = tps_65023_id, }; |