Lines Matching +full:low +full:- +full:power +full:- +full:disable
1 // SPDX-License-Identifier: GPL-2.0
9 // Inspired from tps65086-regulator.c
30 * The PMIC has four sets of registers corresponding to four power modes:
31 * Performance, Active, Low-power, Hibernate.
34 * Each regulator has a register for each power mode. To access a register
42 * a low-power state while the PMIC is in Active mode. They are supposed to be
43 * configured at startup and then simply transition to/from a global low-power
44 * state by setting the GPIO lpm pin high/low.
46 * This driver keeps the PMIC in Active mode, Low-power state is set for the
49 * The PMIC's Low-power and Hibernate modes are used during standby/suspend.
50 * To enter standby/suspend the PMIC will go to Low-power mode. From there, it
51 * will transition to Hibernate when the PWRHLD line is set to low by the MPU.
76 * enum mcp16502_reg - MCP16502 regulators's registers
78 * @MCP16502_REG_LPM: low power mode state register
145 * struct mcp16502 - PMIC representation
153 * mcp16502_gpio_set_mode() - set the GPIO corresponding value
161 gpiod_set_value(mcp->lpm, 0); in mcp16502_gpio_set_mode()
165 gpiod_set_value(mcp->lpm, 1); in mcp16502_gpio_set_mode()
173 * mcp16502_get_reg() - get the PMIC's state configuration register for opmode
176 * @opmode: the PMIC's operating mode ACTIVE, Low-power, Hibernate
188 return -EINVAL; in mcp16502_get_state_reg()
193 * mcp16502_get_mode() - return the current operating mode of a regulator
210 ret = regmap_read(rdev->regmap, reg, &val); in mcp16502_get_mode()
225 * _mcp16502_set_mode() - helper for set_mode and set_suspend_mode
229 * @opmode: the PMIC's operating mode: Active/Low-power/Hibernate
249 return -EINVAL; in _mcp16502_set_mode()
252 reg = regmap_update_bits(rdev->regmap, reg, MCP16502_MODE, val); in _mcp16502_set_mode()
257 * mcp16502_set_mode() - regulator_ops set_mode
265 * mcp16502_get_status() - regulator_ops get_status
272 ret = regmap_read(rdev->regmap, MCP16502_STAT_BASE(rdev_get_id(rdev)), in mcp16502_get_status()
296 ret = regmap_read(rdev->regmap, MCP16502_REG_BASE(id, CFG), &val); in mcp16502_set_voltage_time_sel()
301 uV_delta = abs(new_sel * rdev->desc->linear_ranges->step - in mcp16502_set_voltage_time_sel()
302 old_sel * rdev->desc->linear_ranges->step); in mcp16502_set_voltage_time_sel()
319 return -EINVAL; in mcp16502_set_voltage_time_sel()
327 * mcp16502_suspend_get_target_reg() - get the reg of the target suspend PMIC
339 dev_err(&rdev->dev, "invalid suspend target: %d\n", in mcp16502_suspend_get_target_reg()
343 return -EINVAL; in mcp16502_suspend_get_target_reg()
347 * mcp16502_set_suspend_voltage() - regulator_ops set_suspend_voltage
360 return regmap_update_bits(rdev->regmap, reg, MCP16502_VSEL, sel); in mcp16502_set_suspend_voltage()
364 * mcp16502_set_suspend_mode() - regulator_ops set_suspend_mode
376 dev_err(&rdev->dev, "invalid suspend target: %d\n", in mcp16502_set_suspend_mode()
380 return -EINVAL; in mcp16502_set_suspend_mode()
384 * mcp16502_set_suspend_enable() - regulator_ops set_suspend_enable
393 return regmap_update_bits(rdev->regmap, reg, MCP16502_EN, MCP16502_EN); in mcp16502_set_suspend_enable()
397 * mcp16502_set_suspend_disable() - regulator_ops set_suspend_disable
406 return regmap_update_bits(rdev->regmap, reg, MCP16502_EN, 0); in mcp16502_set_suspend_disable()
416 .disable = regulator_disable_regmap,
442 .disable = regulator_disable_regmap,
512 dev = &client->dev; in mcp16502_probe()
517 return -ENOMEM; in mcp16502_probe()
530 mcp->lpm = devm_gpiod_get_optional(dev, "lpm", GPIOD_OUT_LOW); in mcp16502_probe()
531 if (IS_ERR(mcp->lpm)) { in mcp16502_probe()
532 dev_err(dev, "failed to get lpm pin: %ld\n", PTR_ERR(mcp->lpm)); in mcp16502_probe()
533 return PTR_ERR(mcp->lpm); in mcp16502_probe()
588 .name = "mcp16502-regulator",