Add support for TPS65086 PMIC regulators. The regulators set consists of 3 Step-down Controllers, 3 Step-down Converters, 3 LDOs, 3 Load Switches, and a Sink and Source LDO. The output voltages are configurable and are meant to supply power to a SoC and/or other components. Signed-off-by: Andrew F. Davis <afd@xxxxxx> --- drivers/regulator/Kconfig | 7 + drivers/regulator/Makefile | 1 + drivers/regulator/tps65086-regulator.c | 251 +++++++++++++++++++++++++++++++++ 3 files changed, 259 insertions(+) create mode 100644 drivers/regulator/tps65086-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 8df0b0e..b45fc60 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -680,6 +680,13 @@ config REGULATOR_TPS6507X three step-down converters and two general-purpose LDO voltage regulators. It supports TI's software based Class-2 SmartReflex implementation. +config REGULATOR_TPS65086 + tristate "TI TPS65086 Power regulators" + depends on MFD_TPS65086 + help + This driver provides support for the voltage regulators on + TI TPS65086 PMICs. + config REGULATOR_TPS65090 tristate "TI TPS65090 Power regulator" depends on MFD_TPS65090 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 0f81749..945d8ec 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -85,6 +85,7 @@ obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o +obj-$(CONFIG_REGULATOR_TPS65086) += tps65086-regulator.o obj-$(CONFIG_REGULATOR_TPS65090) += tps65090-regulator.o obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o diff --git a/drivers/regulator/tps65086-regulator.c b/drivers/regulator/tps65086-regulator.c new file mode 100644 index 0000000..d59cd19 --- /dev/null +++ b/drivers/regulator/tps65086-regulator.c @@ -0,0 +1,251 @@ +/* + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ + * + * Author: Andrew F. Davis <afd@xxxxxx> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether expressed or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License version 2 for more details. + * + * Based on the TPS65912 driver + */ + +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> + +#include <linux/mfd/tps65086.h> + +enum tps65086_regulators { BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, LDOA1, + LDOA2, LDOA3, SWA1, SWB1, SWB2, VTT }; + +#define TPS65086_REGULATOR(_name, _of, _id, _nv, _vr, _vm, _er, _em, _lr, _dr, _dm) \ + [_id] = { \ + .desc = { \ + .name = _name, \ + .of_match = _of, \ + .regulators_node = "regulators", \ + .of_parse_cb = tps65086_of_parse_cb, \ + .id = _id, \ + .ops = ®_ops, \ + .n_voltages = _nv, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .vsel_reg = _vr, \ + .vsel_mask = _vm, \ + .enable_reg = _er, \ + .enable_mask = _em, \ + .volt_table = NULL, \ + .linear_ranges = _lr, \ + .n_linear_ranges = ARRAY_SIZE(_lr), \ + }, \ + .decay_reg = _dr, \ + .decay_mask = _dm, \ + } + +#define TPS65086_SWITCH(_name, _of, _id, _er, _em) \ + [_id] = { \ + .desc = { \ + .name = _name, \ + .of_match = _of, \ + .regulators_node = "regulators", \ + .of_parse_cb = tps65086_of_parse_cb, \ + .id = _id, \ + .ops = &switch_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .enable_reg = _er, \ + .enable_mask = _em, \ + }, \ + } + +struct tps65086_regulator { + struct regulator_desc desc; + unsigned int decay_reg; + unsigned int decay_mask; +}; + +static const struct regulator_linear_range tps65086_buck126_10mv_ranges[] = { + REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000), +}; + +static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = { + REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x18, 0), + REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000), +}; + +static const struct regulator_linear_range tps65086_buck345_ranges[] = { + REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000), +}; + +static const struct regulator_linear_range tps65086_ldoa1_ranges[] = { + REGULATOR_LINEAR_RANGE(1350000, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(1500000, 0x1, 0x7, 100000), + REGULATOR_LINEAR_RANGE(2300000, 0x8, 0xA, 100000), + REGULATOR_LINEAR_RANGE(2700000, 0xB, 0xD, 150000), + REGULATOR_LINEAR_RANGE(3300000, 0xE, 0xE, 0), +}; + +static const struct regulator_linear_range tps65086_ldoa23_ranges[] = { + REGULATOR_LINEAR_RANGE(700000, 0x0, 0xD, 50000), + REGULATOR_LINEAR_RANGE(1400000, 0xE, 0xF, 100000), +}; + +/* Operations permitted on regulators */ +static struct regulator_ops reg_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, +}; + +/* Operations permitted on load switches */ +static struct regulator_ops switch_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static int tps65086_of_parse_cb(struct device_node *dev, + const struct regulator_desc *desc, + struct regulator_config *config); + +static struct tps65086_regulator regulators[] = { + TPS65086_REGULATOR("BUCK1", "buck1", BUCK1, 0x80, TPS65086_BUCK1CTRL, + BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(0), + tps65086_buck126_10mv_ranges, TPS65086_BUCK1CTRL, + BIT(0)), + TPS65086_REGULATOR("BUCK2", "buck2", BUCK2, 0x80, TPS65086_BUCK2CTRL, + BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(1), + tps65086_buck126_10mv_ranges, TPS65086_BUCK2CTRL, + BIT(0)), + TPS65086_REGULATOR("BUCK3", "buck3", BUCK3, 0x80, TPS65086_BUCK3VID, + BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(2), + tps65086_buck345_ranges, TPS65086_BUCK3DECAY, + BIT(0)), + TPS65086_REGULATOR("BUCK4", "buck4", BUCK4, 0x80, TPS65086_BUCK4VID, + BUCK_VID_MASK, TPS65086_BUCK4CTRL, BIT(0), + tps65086_buck345_ranges, TPS65086_BUCK4VID, + BIT(0)), + TPS65086_REGULATOR("BUCK5", "buck5", BUCK5, 0x80, TPS65086_BUCK5VID, + BUCK_VID_MASK, TPS65086_BUCK5CTRL, BIT(0), + tps65086_buck345_ranges, TPS65086_BUCK5CTRL, + BIT(0)), + TPS65086_REGULATOR("BUCK6", "buck6", BUCK6, 0x80, TPS65086_BUCK6VID, + BUCK_VID_MASK, TPS65086_BUCK6CTRL, BIT(0), + tps65086_buck126_10mv_ranges, TPS65086_BUCK6CTRL, + BIT(0)), + TPS65086_REGULATOR("LDOA1", "ldoa1", LDOA1, 0xF, TPS65086_LDOA1CTRL, + VDOA1_VID_MASK, TPS65086_LDOA1CTRL, BIT(0), + tps65086_ldoa1_ranges, 0, 0), + TPS65086_REGULATOR("LDOA2", "ldoa2", LDOA2, 0x10, TPS65086_LDOA2VID, + VDOA23_VID_MASK, TPS65086_LDOA2CTRL, BIT(0), + tps65086_ldoa23_ranges, 0, 0), + TPS65086_REGULATOR("LDOA3", "ldoa3", LDOA3, 0x10, TPS65086_LDOA3VID, + VDOA23_VID_MASK, TPS65086_LDOA3CTRL, BIT(0), + tps65086_ldoa23_ranges, 0, 0), + TPS65086_SWITCH("SWA1", "swa1", SWA1, TPS65086_SWVTT_EN, BIT(5)), + TPS65086_SWITCH("SWB1", "swa2", SWB1, TPS65086_SWVTT_EN, BIT(6)), + TPS65086_SWITCH("SWB2", "swa3", SWB2, TPS65086_SWVTT_EN, BIT(7)), + TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)), +}; + +static inline bool has_25mv_mode(int id) +{ + switch (id) { + case BUCK1: + case BUCK2: + case BUCK6: + return true; + default: + return false; + } +} + +static int tps65086_of_parse_cb(struct device_node *dev, + const struct regulator_desc *desc, + struct regulator_config *config) +{ + int ret; + + /* Check for 25mV step mode */ + if (has_25mv_mode(desc->id) && + of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) { + regulators[desc->id].desc.linear_ranges = + tps65086_buck126_25mv_ranges; + regulators[desc->id].desc.n_linear_ranges = + ARRAY_SIZE(tps65086_buck126_25mv_ranges); + } + + /* Check for decay mode */ + if (desc->id <= BUCK6 && of_property_read_bool(config->of_node, "ti,regulator-decay")) { + ret = regmap_write_bits(config->regmap, + regulators[desc->id].decay_reg, + regulators[desc->id].decay_mask, + regulators[desc->id].decay_mask); + if (ret) { + dev_err(config->dev, "Error setting decay\n"); + return ret; + } + } + + return 0; +} + +static int tps65086_regulator_probe(struct platform_device *pdev) +{ + struct tps65086 *tps = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = { }; + struct regulator_dev *rdev; + int i; + + platform_set_drvdata(pdev, tps); + + config.dev = &pdev->dev; + config.dev->of_node = tps->dev->of_node; + config.driver_data = tps; + config.regmap = tps->regmap; + + for (i = 0; i < ARRAY_SIZE(regulators); i++) { + rdev = devm_regulator_register(&pdev->dev, ®ulators[i].desc, + &config); + if (IS_ERR(rdev)) { + dev_err(tps->dev, "failed to register %s regulator\n", + pdev->name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct platform_device_id tps65086_regulator_id_table[] = { + { "tps65086-regulator", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, tps65086_regulator_id_table); + +static struct platform_driver tps65086_regulator_driver = { + .driver = { + .name = "tps65086-regulator", + }, + .probe = tps65086_regulator_probe, + .id_table = tps65086_regulator_id_table, +}; +module_platform_driver(tps65086_regulator_driver); + +MODULE_AUTHOR("Andrew F. Davis <afd@xxxxxx>"); +MODULE_DESCRIPTION("TPS65086 Regulator driver"); +MODULE_LICENSE("GPL v2"); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
