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    Subject[PATCH v7 4/5] regulator: tps65912: Add regulator driver for the TPS65912 PMIC
    Date
    This patch adds support for TPS65912 PMIC regulators.

    The regulators set consists of 4 DCDCs and 10 LDOs. The output
    voltages are configurable and are meant to supply power to the
    main processor and other components.

    Signed-off-by: Andrew F. Davis <afd@ti.com>
    ---
    drivers/regulator/Kconfig | 6 ++
    drivers/regulator/Makefile | 1 +
    drivers/regulator/tps65912-regulator.c | 169 +++++++++++++++++++++++++++++++++
    3 files changed, 176 insertions(+)
    create mode 100644 drivers/regulator/tps65912-regulator.c

    diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
    index 90c7612..3b08452 100644
    --- a/drivers/regulator/Kconfig
    +++ b/drivers/regulator/Kconfig
    @@ -727,6 +727,12 @@ config REGULATOR_TPS65910
    help
    This driver supports TPS65910/TPS65911 voltage regulator chips.

    +config REGULATOR_TPS65912
    + tristate "TI TPS65912 Power regulator"
    + depends on MFD_TPS65912
    + help
    + This driver supports TPS65912 voltage regulator chip.
    +
    config REGULATOR_TPS80031
    tristate "TI TPS80031/TPS80032 power regualtor driver"
    depends on MFD_TPS80031
    diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
    index 222ff5f..0f81749 100644
    --- a/drivers/regulator/Makefile
    +++ b/drivers/regulator/Makefile
    @@ -91,6 +91,7 @@ obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o
    obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
    obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
    obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
    +obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
    obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o
    obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
    obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress.o
    diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
    new file mode 100644
    index 0000000..a87f04e
    --- /dev/null
    +++ b/drivers/regulator/tps65912-regulator.c
    @@ -0,0 +1,169 @@
    +/*
    + * Regulator driver for TI TPS65912x PMICs
    + *
    + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
    + *
    + * Author: Andrew F. Davis <afd@ti.com>
    + *
    + * 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 TPS65218 driver and the previous TPS65912 driver by
    + * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
    + */
    +
    +#include <linux/module.h>
    +#include <linux/platform_device.h>
    +#include <linux/regulator/driver.h>
    +
    +#include <linux/mfd/tps65912.h>
    +
    +enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
    + LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
    +
    +#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \
    + [_id] = { \
    + .name = _name, \
    + .of_match = _of_match, \
    + .regulators_node = "regulators", \
    + .id = _id, \
    + .ops = &_ops, \
    + .n_voltages = 64, \
    + .type = REGULATOR_VOLTAGE, \
    + .owner = THIS_MODULE, \
    + .vsel_reg = _vr, \
    + .vsel_mask = 0x3f, \
    + .enable_reg = _er, \
    + .enable_mask = BIT(7), \
    + .volt_table = NULL, \
    + .linear_ranges = _lr, \
    + .n_linear_ranges = ARRAY_SIZE(_lr), \
    + }
    +
    +static const struct regulator_linear_range tps65912_dcdc_ranges[] = {
    + REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
    +};
    +
    +static const struct regulator_linear_range tps65912_ldo_ranges[] = {
    + REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
    + REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
    + REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
    +};
    +
    +/* Operations permitted on DCDCx */
    +static struct regulator_ops tps65912_ops_dcdc = {
    + .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,
    +};
    +
    +/* Operations permitted on LDOx */
    +static struct regulator_ops tps65912_ops_ldo = {
    + .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[] = {
    + TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
    + TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
    + tps65912_dcdc_ranges),
    + TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
    + TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
    + tps65912_dcdc_ranges),
    + TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
    + TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
    + tps65912_dcdc_ranges),
    + TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
    + TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
    + tps65912_dcdc_ranges),
    + TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
    + TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
    + TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
    + TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
    + TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
    + TPS65912_LDO5, TPS65912_LDO5,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
    + TPS65912_LDO6, TPS65912_LDO6,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
    + TPS65912_LDO7, TPS65912_LDO7,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
    + TPS65912_LDO8, TPS65912_LDO8,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
    + TPS65912_LDO9, TPS65912_LDO9,
    + tps65912_ldo_ranges),
    + TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
    + TPS65912_LDO10, TPS65912_LDO10,
    + tps65912_ldo_ranges),
    +};
    +
    +static int tps65912_regulator_probe(struct platform_device *pdev)
    +{
    + struct tps65912 *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.driver_data = tps;
    + config.dev->of_node = tps->dev->of_node;
    + config.regmap = tps->regmap;
    +
    + for (i = 0; i < ARRAY_SIZE(regulators); i++) {
    + rdev = devm_regulator_register(&pdev->dev, &regulators[i],
    + &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 tps65912_regulator_id_table[] = {
    + { "tps65912-regulator", },
    + { /* sentinel */ }
    +};
    +MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
    +
    +static struct platform_driver tps65912_regulator_driver = {
    + .driver = {
    + .name = "tps65912-regulator",
    + },
    + .probe = tps65912_regulator_probe,
    + .id_table = tps65912_regulator_id_table,
    +};
    +module_platform_driver(tps65912_regulator_driver);
    +
    +MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
    +MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
    +MODULE_LICENSE("GPL v2");
    --
    1.9.1


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