mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
045a44d4c9
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230714174930.4063320-1-robh@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
394 lines
14 KiB
C
394 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// tps65219-regulator.c
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//
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// Regulator driver for TPS65219 PMIC
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//
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// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
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//
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// This implementation derived from tps65218 authored by
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// "J Keerthy <j-keerthy@ti.com>"
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//
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/mfd/tps65219.h>
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struct tps65219_regulator_irq_type {
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const char *irq_name;
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const char *regulator_name;
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const char *event_name;
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unsigned long event;
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};
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static struct tps65219_regulator_irq_type tps65219_regulator_irq_types[] = {
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{ "LDO3_SCG", "LDO3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "LDO3_OC", "LDO3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "LDO3_UV", "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "LDO4_SCG", "LDO4", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "LDO4_OC", "LDO4", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "LDO4_UV", "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "LDO1_SCG", "LDO1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "LDO1_OC", "LDO1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "LDO1_UV", "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "LDO2_SCG", "LDO2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "LDO2_OC", "LDO2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "LDO2_UV", "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "BUCK3_SCG", "BUCK3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "BUCK3_OC", "BUCK3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "BUCK3_NEG_OC", "BUCK3", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "BUCK3_UV", "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "BUCK1_SCG", "BUCK1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "BUCK1_OC", "BUCK1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "BUCK1_NEG_OC", "BUCK1", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "BUCK1_UV", "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "BUCK2_SCG", "BUCK2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
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{ "BUCK2_OC", "BUCK2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "BUCK2_NEG_OC", "BUCK2", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
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{ "BUCK2_UV", "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
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{ "BUCK1_RV", "BUCK1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "BUCK2_RV", "BUCK2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "BUCK3_RV", "BUCK3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO1_RV", "LDO1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO2_RV", "LDO2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO3_RV", "LDO3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO4_RV", "LDO4", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "BUCK1_RV_SD", "BUCK1", "residual voltage on shutdown",
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REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "BUCK2_RV_SD", "BUCK2", "residual voltage on shutdown",
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REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "BUCK3_RV_SD", "BUCK3", "residual voltage on shutdown",
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REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO1_RV_SD", "LDO1", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO2_RV_SD", "LDO2", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO3_RV_SD", "LDO3", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "LDO4_RV_SD", "LDO4", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
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{ "SENSOR_3_WARM", "SENSOR3", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN},
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{ "SENSOR_2_WARM", "SENSOR2", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
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{ "SENSOR_1_WARM", "SENSOR1", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
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{ "SENSOR_0_WARM", "SENSOR0", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
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{ "SENSOR_3_HOT", "SENSOR3", "hot temperature", REGULATOR_EVENT_OVER_TEMP},
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{ "SENSOR_2_HOT", "SENSOR2", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
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{ "SENSOR_1_HOT", "SENSOR1", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
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{ "SENSOR_0_HOT", "SENSOR0", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
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{ "TIMEOUT", "", "", REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE },
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};
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struct tps65219_regulator_irq_data {
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struct device *dev;
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struct tps65219_regulator_irq_type *type;
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struct regulator_dev *rdev;
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};
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#define TPS65219_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
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_em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
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_ct, _ncl, _bpm) \
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{ \
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.name = _name, \
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.of_match = _of, \
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.regulators_node = of_match_ptr("regulators"), \
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.supply_name = _of, \
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.id = _id, \
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.ops = &(_ops), \
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.n_voltages = _n, \
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.type = _type, \
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.owner = THIS_MODULE, \
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.vsel_reg = _vr, \
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.vsel_mask = _vm, \
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.csel_reg = _cr, \
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.csel_mask = _cm, \
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.curr_table = _ct, \
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.n_current_limits = _ncl, \
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.enable_reg = _er, \
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.enable_mask = _em, \
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.volt_table = NULL, \
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.linear_ranges = _lr, \
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.n_linear_ranges = _nlr, \
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.ramp_delay = _delay, \
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.fixed_uV = _fuv, \
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.bypass_reg = _vr, \
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.bypass_mask = _bpm, \
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} \
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static const struct linear_range bucks_ranges[] = {
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REGULATOR_LINEAR_RANGE(600000, 0x0, 0x1f, 25000),
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REGULATOR_LINEAR_RANGE(1400000, 0x20, 0x33, 100000),
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REGULATOR_LINEAR_RANGE(3400000, 0x34, 0x3f, 0),
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};
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static const struct linear_range ldos_1_2_ranges[] = {
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REGULATOR_LINEAR_RANGE(600000, 0x0, 0x37, 50000),
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REGULATOR_LINEAR_RANGE(3400000, 0x38, 0x3f, 0),
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};
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static const struct linear_range ldos_3_4_ranges[] = {
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REGULATOR_LINEAR_RANGE(1200000, 0x0, 0xC, 0),
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REGULATOR_LINEAR_RANGE(1250000, 0xD, 0x35, 50000),
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REGULATOR_LINEAR_RANGE(3300000, 0x36, 0x3F, 0),
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};
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static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
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{
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struct tps65219 *tps = rdev_get_drvdata(dev);
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switch (mode) {
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case REGULATOR_MODE_NORMAL:
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return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
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dev->desc->enable_mask);
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case REGULATOR_MODE_STANDBY:
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return regmap_clear_bits(tps->regmap,
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TPS65219_REG_STBY_1_CONFIG,
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dev->desc->enable_mask);
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default:
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return -EINVAL;
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}
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}
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static unsigned int tps65219_get_mode(struct regulator_dev *dev)
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{
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struct tps65219 *tps = rdev_get_drvdata(dev);
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unsigned int rid = rdev_get_id(dev);
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int ret, value = 0;
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ret = regmap_read(tps->regmap, TPS65219_REG_STBY_1_CONFIG, &value);
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if (ret) {
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dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
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__func__, dev->desc->name, ret);
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return ret;
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}
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value = (value & BIT(rid)) >> rid;
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if (value)
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return REGULATOR_MODE_STANDBY;
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else
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return REGULATOR_MODE_NORMAL;
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}
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/* Operations permitted on BUCK1/2/3 */
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static const struct regulator_ops tps65219_bucks_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.set_mode = tps65219_set_mode,
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.get_mode = tps65219_get_mode,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_linear_range,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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};
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/* Operations permitted on LDO1/2 */
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static const struct regulator_ops tps65219_ldos_1_2_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.set_mode = tps65219_set_mode,
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.get_mode = tps65219_get_mode,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_linear_range,
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.set_bypass = regulator_set_bypass_regmap,
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.get_bypass = regulator_get_bypass_regmap,
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};
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/* Operations permitted on LDO3/4 */
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static const struct regulator_ops tps65219_ldos_3_4_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.set_mode = tps65219_set_mode,
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.get_mode = tps65219_get_mode,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_linear_range,
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};
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static const struct regulator_desc regulators[] = {
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TPS65219_REGULATOR("BUCK1", "buck1", TPS65219_BUCK_1,
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REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
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TPS65219_REG_BUCK1_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_BUCK1_EN_MASK, 0, 0, bucks_ranges,
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3, 4000, 0, NULL, 0, 0),
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TPS65219_REGULATOR("BUCK2", "buck2", TPS65219_BUCK_2,
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REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
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TPS65219_REG_BUCK2_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_BUCK2_EN_MASK, 0, 0, bucks_ranges,
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3, 4000, 0, NULL, 0, 0),
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TPS65219_REGULATOR("BUCK3", "buck3", TPS65219_BUCK_3,
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REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
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TPS65219_REG_BUCK3_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_BUCK3_EN_MASK, 0, 0, bucks_ranges,
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3, 0, 0, NULL, 0, 0),
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TPS65219_REGULATOR("LDO1", "ldo1", TPS65219_LDO_1,
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REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
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TPS65219_REG_LDO1_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_LDO1_EN_MASK, 0, 0, ldos_1_2_ranges,
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2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
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TPS65219_REGULATOR("LDO2", "ldo2", TPS65219_LDO_2,
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REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
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TPS65219_REG_LDO2_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_LDO2_EN_MASK, 0, 0, ldos_1_2_ranges,
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2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
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TPS65219_REGULATOR("LDO3", "ldo3", TPS65219_LDO_3,
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REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
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TPS65219_REG_LDO3_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_LDO3_EN_MASK, 0, 0, ldos_3_4_ranges,
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3, 0, 0, NULL, 0, 0),
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TPS65219_REGULATOR("LDO4", "ldo4", TPS65219_LDO_4,
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REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
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TPS65219_REG_LDO4_VOUT,
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TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
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TPS65219_REG_ENABLE_CTRL,
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TPS65219_ENABLE_LDO4_EN_MASK, 0, 0, ldos_3_4_ranges,
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3, 0, 0, NULL, 0, 0),
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};
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static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
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{
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struct tps65219_regulator_irq_data *irq_data = data;
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if (irq_data->type->event_name[0] == '\0') {
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/* This is the timeout interrupt no specific regulator */
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dev_err(irq_data->dev,
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"System was put in shutdown due to timeout during an active or standby transition.\n");
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return IRQ_HANDLED;
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}
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regulator_notifier_call_chain(irq_data->rdev,
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irq_data->type->event, NULL);
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dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",
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irq_data->type->event_name, irq_data->type->regulator_name);
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return IRQ_HANDLED;
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}
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static int tps65219_get_rdev_by_name(const char *regulator_name,
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struct regulator_dev *rdevtbl[7],
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struct regulator_dev **dev)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(regulators); i++) {
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if (strcmp(regulator_name, regulators[i].name) == 0) {
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*dev = rdevtbl[i];
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return 0;
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}
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}
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return -EINVAL;
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}
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static int tps65219_regulator_probe(struct platform_device *pdev)
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{
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struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
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struct regulator_dev *rdev;
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struct regulator_config config = { };
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int i;
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int error;
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int irq;
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struct tps65219_regulator_irq_data *irq_data;
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struct tps65219_regulator_irq_type *irq_type;
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struct regulator_dev *rdevtbl[7];
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config.dev = tps->dev;
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config.driver_data = tps;
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config.regmap = tps->regmap;
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for (i = 0; i < ARRAY_SIZE(regulators); i++) {
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dev_dbg(tps->dev, "%s regul i= %d START", __func__, i);
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rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
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&config);
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if (IS_ERR(rdev)) {
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dev_err(tps->dev, "failed to register %s regulator\n",
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regulators[i].name);
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return PTR_ERR(rdev);
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}
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rdevtbl[i] = rdev;
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dev_dbg(tps->dev, "%s regul i= %d COMPLETED", __func__, i);
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}
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irq_data = devm_kmalloc(tps->dev,
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ARRAY_SIZE(tps65219_regulator_irq_types) *
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sizeof(struct tps65219_regulator_irq_data),
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GFP_KERNEL);
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if (!irq_data)
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return -ENOMEM;
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for (i = 0; i < ARRAY_SIZE(tps65219_regulator_irq_types); ++i) {
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irq_type = &tps65219_regulator_irq_types[i];
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irq = platform_get_irq_byname(pdev, irq_type->irq_name);
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if (irq < 0)
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return -EINVAL;
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irq_data[i].dev = tps->dev;
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irq_data[i].type = irq_type;
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tps65219_get_rdev_by_name(irq_type->regulator_name, rdevtbl, &rdev);
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if (IS_ERR(rdev)) {
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dev_err(tps->dev, "Failed to get rdev for %s\n",
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irq_type->regulator_name);
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return -EINVAL;
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}
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irq_data[i].rdev = rdev;
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error = devm_request_threaded_irq(tps->dev, irq, NULL,
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tps65219_regulator_irq_handler,
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IRQF_ONESHOT,
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irq_type->irq_name,
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&irq_data[i]);
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if (error) {
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dev_err(tps->dev, "failed to request %s IRQ %d: %d\n",
|
|
irq_type->irq_name, irq, error);
|
|
return error;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_device_id tps65219_regulator_id_table[] = {
|
|
{ "tps65219-regulator", },
|
|
{ /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, tps65219_regulator_id_table);
|
|
|
|
static struct platform_driver tps65219_regulator_driver = {
|
|
.driver = {
|
|
.name = "tps65219-pmic",
|
|
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
|
|
},
|
|
.probe = tps65219_regulator_probe,
|
|
.id_table = tps65219_regulator_id_table,
|
|
};
|
|
|
|
module_platform_driver(tps65219_regulator_driver);
|
|
|
|
MODULE_AUTHOR("Jerome Neanne <j-neanne@baylibre.com>");
|
|
MODULE_DESCRIPTION("TPS65219 voltage regulator driver");
|
|
MODULE_ALIAS("platform:tps65219-pmic");
|
|
MODULE_LICENSE("GPL");
|