Add support for the regulators on the tps65219 PMIC. This driver is based on the corresponding Linux driver, but limited to the barebox regulator capabilities. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- drivers/regulator/Kconfig | 4 + drivers/regulator/Makefile | 1 + drivers/regulator/tps65219-regulator.c | 187 +++++++++++++++++++++++++++++++++ 3 files changed, 192 insertions(+) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 54f27e1824..3374a511f8 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -58,6 +58,10 @@ config REGULATOR_STPMIC1 an application processor as well as to external system peripherals such as DDR, Flash memories and system devices. +config REGULATOR_TPS65219 + tristate "TI TPS65219 Regulators" + depends on MFD_TPS65219 + config REGULATOR_ANATOP tristate "Freescale i.MX on-chip ANATOP LDO regulators" depends on MFD_SYSCON diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 54ab6ef650..a6f5b5b734 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_REGULATOR_STM32_PWR) += stm32-pwr.o obj-$(CONFIG_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o obj-$(CONFIG_REGULATOR_ARM_SCMI) += scmi-regulator.o obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o +obj-$(CONFIG_REGULATOR_TPS65219) += tps65219-regulator.o diff --git a/drivers/regulator/tps65219-regulator.c b/drivers/regulator/tps65219-regulator.c new file mode 100644 index 0000000000..f70fd64c67 --- /dev/null +++ b/drivers/regulator/tps65219-regulator.c @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// tps65219-regulator.c +// +// Regulator driver for TPS65219 PMIC +// +// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/ +// +// This implementation derived from tps65218 authored by +// "J Keerthy <j-keerthy@xxxxxx>" +// +#define DEBUG +#include <linux/mfd/tps65219.h> +#include <of_device.h> +#include <linux/regmap.h> +#include <linux/regulator/of_regulator.h> +#include <regulator.h> +#include <linux/device.h> + +struct tps65219_regulator_irq_type { + const char *irq_name; + const char *regulator_name; + const char *event_name; + unsigned long event; +}; + +#define TPS65219_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \ + _em, _cr, _cm, _lr, _nlr, _delay, _fuv, \ + _ct, _ncl, _bpm) \ + { \ + .name = _name, \ + .of_match = _of, \ + .regulators_node = of_match_ptr("regulators"), \ + .supply_name = _of, \ + .id = _id, \ + .ops = &(_ops), \ + .n_voltages = _n, \ + .vsel_reg = _vr, \ + .vsel_mask = _vm, \ + .enable_reg = _er, \ + .enable_mask = _em, \ + .volt_table = NULL, \ + .linear_ranges = _lr, \ + .n_linear_ranges = _nlr, \ + .fixed_uV = _fuv, \ + } \ + +static const struct regulator_linear_range bucks_ranges[] = { + REGULATOR_LINEAR_RANGE(600000, 0x0, 0x1f, 25000), + REGULATOR_LINEAR_RANGE(1400000, 0x20, 0x33, 100000), + REGULATOR_LINEAR_RANGE(3400000, 0x34, 0x3f, 0), +}; + +static const struct regulator_linear_range ldos_1_2_ranges[] = { + REGULATOR_LINEAR_RANGE(600000, 0x0, 0x37, 50000), + REGULATOR_LINEAR_RANGE(3400000, 0x38, 0x3f, 0), +}; + +static const struct regulator_linear_range ldos_3_4_ranges[] = { + REGULATOR_LINEAR_RANGE(1200000, 0x0, 0xC, 0), + REGULATOR_LINEAR_RANGE(1250000, 0xD, 0x35, 50000), + REGULATOR_LINEAR_RANGE(3300000, 0x36, 0x3F, 0), +}; + +/* Operations permitted on BUCK1/2/3 */ +static const struct regulator_ops tps65219_bucks_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, +}; + +/* Operations permitted on LDO1/2 */ +static const struct regulator_ops tps65219_ldos_1_2_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, +}; + +/* Operations permitted on LDO3/4 */ +static const struct regulator_ops tps65219_ldos_3_4_ops = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, +}; + +static const struct regulator_desc regulators[] = { + TPS65219_REGULATOR("BUCK1", "buck1", TPS65219_BUCK_1, + REGULATOR_VOLTAGE, tps65219_bucks_ops, 64, + TPS65219_REG_BUCK1_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_BUCK1_EN_MASK, 0, 0, bucks_ranges, + 3, 4000, 0, NULL, 0, 0), + TPS65219_REGULATOR("BUCK2", "buck2", TPS65219_BUCK_2, + REGULATOR_VOLTAGE, tps65219_bucks_ops, 64, + TPS65219_REG_BUCK2_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_BUCK2_EN_MASK, 0, 0, bucks_ranges, + 3, 4000, 0, NULL, 0, 0), + TPS65219_REGULATOR("BUCK3", "buck3", TPS65219_BUCK_3, + REGULATOR_VOLTAGE, tps65219_bucks_ops, 64, + TPS65219_REG_BUCK3_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_BUCK3_EN_MASK, 0, 0, bucks_ranges, + 3, 0, 0, NULL, 0, 0), + TPS65219_REGULATOR("LDO1", "ldo1", TPS65219_LDO_1, + REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64, + TPS65219_REG_LDO1_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_LDO1_EN_MASK, 0, 0, ldos_1_2_ranges, + 2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK), + TPS65219_REGULATOR("LDO2", "ldo2", TPS65219_LDO_2, + REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64, + TPS65219_REG_LDO2_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_LDO2_EN_MASK, 0, 0, ldos_1_2_ranges, + 2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK), + TPS65219_REGULATOR("LDO3", "ldo3", TPS65219_LDO_3, + REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64, + TPS65219_REG_LDO3_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_LDO3_EN_MASK, 0, 0, ldos_3_4_ranges, + 3, 0, 0, NULL, 0, 0), + TPS65219_REGULATOR("LDO4", "ldo4", TPS65219_LDO_4, + REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64, + TPS65219_REG_LDO4_VOUT, + TPS65219_BUCKS_LDOS_VOUT_VSET_MASK, + TPS65219_REG_ENABLE_CTRL, + TPS65219_ENABLE_LDO4_EN_MASK, 0, 0, ldos_3_4_ranges, + 3, 0, 0, NULL, 0, 0), +}; + +static int tps65219_regulator_probe(struct device *dev) +{ + struct tps65219 *tps = dev->parent->priv; + struct regulator_dev *rdev; + struct regulator_config config = { }; + int i; + struct regulator_dev *rdevtbl[7]; + + config.dev = tps->dev; + config.driver_data = tps; + config.regmap = tps->regmap; + + for (i = 0; i < ARRAY_SIZE(regulators); i++) { + dev_dbg(tps->dev, "%s regul i= %d START\n", __func__, i); + rdev = regulator_register(tps->dev, ®ulators[i], + &config); + if (IS_ERR(rdev)) { + dev_err(tps->dev, "failed to register %s regulator\n", + regulators[i].name); + return PTR_ERR(rdev); + } + rdevtbl[i] = rdev; + dev_dbg(tps->dev, "%s regul i= %d COMPLETED\n", __func__, i); + } + + return 0; +} + +static struct driver tps65219_regulator_driver = { + .name = "tps65219-regulator", + .probe = tps65219_regulator_probe, +}; +coredevice_platform_driver(tps65219_regulator_driver); + +MODULE_AUTHOR("Jerome Neanne <j-neanne@xxxxxxxxxxxx>"); +MODULE_DESCRIPTION("TPS65219 voltage regulator driver"); +MODULE_ALIAS("platform:tps65219-pmic"); +MODULE_LICENSE("GPL"); -- 2.39.5
