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802 lines
24 KiB
802 lines
24 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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// Copyright (C) 2019 ROHM Semiconductors |
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// bd71828-regulator.c ROHM BD71828GW-DS1 regulator driver |
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// |
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#include <linux/delay.h> |
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#include <linux/err.h> |
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#include <linux/gpio.h> |
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#include <linux/interrupt.h> |
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#include <linux/kernel.h> |
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#include <linux/mfd/rohm-bd71828.h> |
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#include <linux/module.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/driver.h> |
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#include <linux/regulator/machine.h> |
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#include <linux/regulator/of_regulator.h> |
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struct reg_init { |
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unsigned int reg; |
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unsigned int mask; |
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unsigned int val; |
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}; |
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struct bd71828_regulator_data { |
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struct regulator_desc desc; |
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const struct rohm_dvs_config dvs; |
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const struct reg_init *reg_inits; |
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int reg_init_amnt; |
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}; |
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static const struct reg_init buck1_inits[] = { |
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/* |
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* DVS Buck voltages can be changed by register values or via GPIO. |
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* Use register accesses by default. |
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*/ |
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{ |
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.reg = BD71828_REG_PS_CTRL_1, |
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.mask = BD71828_MASK_DVS_BUCK1_CTRL, |
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.val = BD71828_DVS_BUCK1_CTRL_I2C, |
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}, |
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}; |
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static const struct reg_init buck2_inits[] = { |
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{ |
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.reg = BD71828_REG_PS_CTRL_1, |
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.mask = BD71828_MASK_DVS_BUCK2_CTRL, |
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.val = BD71828_DVS_BUCK2_CTRL_I2C, |
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}, |
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}; |
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static const struct reg_init buck6_inits[] = { |
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{ |
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.reg = BD71828_REG_PS_CTRL_1, |
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.mask = BD71828_MASK_DVS_BUCK6_CTRL, |
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.val = BD71828_DVS_BUCK6_CTRL_I2C, |
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}, |
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}; |
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static const struct reg_init buck7_inits[] = { |
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{ |
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.reg = BD71828_REG_PS_CTRL_1, |
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.mask = BD71828_MASK_DVS_BUCK7_CTRL, |
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.val = BD71828_DVS_BUCK7_CTRL_I2C, |
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}, |
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}; |
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static const struct linear_range bd71828_buck1267_volts[] = { |
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REGULATOR_LINEAR_RANGE(500000, 0x00, 0xef, 6250), |
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REGULATOR_LINEAR_RANGE(2000000, 0xf0, 0xff, 0), |
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}; |
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static const struct linear_range bd71828_buck3_volts[] = { |
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REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x0f, 50000), |
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REGULATOR_LINEAR_RANGE(2000000, 0x10, 0x1f, 0), |
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}; |
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static const struct linear_range bd71828_buck4_volts[] = { |
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REGULATOR_LINEAR_RANGE(1000000, 0x00, 0x1f, 25000), |
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REGULATOR_LINEAR_RANGE(1800000, 0x20, 0x3f, 0), |
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}; |
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static const struct linear_range bd71828_buck5_volts[] = { |
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REGULATOR_LINEAR_RANGE(2500000, 0x00, 0x0f, 50000), |
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REGULATOR_LINEAR_RANGE(3300000, 0x10, 0x1f, 0), |
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}; |
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static const struct linear_range bd71828_ldo_volts[] = { |
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REGULATOR_LINEAR_RANGE(800000, 0x00, 0x31, 50000), |
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REGULATOR_LINEAR_RANGE(3300000, 0x32, 0x3f, 0), |
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}; |
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static int bd71828_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) |
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{ |
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unsigned int val; |
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switch (ramp_delay) { |
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case 1 ... 2500: |
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val = 0; |
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break; |
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case 2501 ... 5000: |
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val = 1; |
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break; |
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case 5001 ... 10000: |
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val = 2; |
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break; |
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case 10001 ... 20000: |
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val = 3; |
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break; |
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default: |
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val = 3; |
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dev_err(&rdev->dev, |
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"ramp_delay: %d not supported, setting 20mV/uS", |
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ramp_delay); |
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} |
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/* |
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* On BD71828 the ramp delay level control reg is at offset +2 to |
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* enable reg |
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*/ |
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return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg + 2, |
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BD71828_MASK_RAMP_DELAY, |
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val << (ffs(BD71828_MASK_RAMP_DELAY) - 1)); |
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} |
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static int buck_set_hw_dvs_levels(struct device_node *np, |
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const struct regulator_desc *desc, |
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struct regulator_config *cfg) |
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{ |
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struct bd71828_regulator_data *data; |
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data = container_of(desc, struct bd71828_regulator_data, desc); |
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return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap); |
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} |
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static int ldo6_parse_dt(struct device_node *np, |
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const struct regulator_desc *desc, |
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struct regulator_config *cfg) |
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{ |
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int ret, i; |
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uint32_t uv = 0; |
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unsigned int en; |
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struct regmap *regmap = cfg->regmap; |
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static const char * const props[] = { "rohm,dvs-run-voltage", |
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"rohm,dvs-idle-voltage", |
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"rohm,dvs-suspend-voltage", |
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"rohm,dvs-lpsr-voltage" }; |
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unsigned int mask[] = { BD71828_MASK_RUN_EN, BD71828_MASK_IDLE_EN, |
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BD71828_MASK_SUSP_EN, BD71828_MASK_LPSR_EN }; |
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for (i = 0; i < ARRAY_SIZE(props); i++) { |
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ret = of_property_read_u32(np, props[i], &uv); |
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if (ret) { |
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if (ret != -EINVAL) |
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return ret; |
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continue; |
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} |
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if (uv) |
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en = 0xffffffff; |
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else |
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en = 0; |
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ret = regmap_update_bits(regmap, desc->enable_reg, mask[i], en); |
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if (ret) |
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return ret; |
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} |
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return 0; |
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} |
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static const struct regulator_ops bd71828_buck_ops = { |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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.is_enabled = regulator_is_enabled_regmap, |
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.list_voltage = regulator_list_voltage_linear_range, |
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.set_voltage_sel = regulator_set_voltage_sel_regmap, |
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.get_voltage_sel = regulator_get_voltage_sel_regmap, |
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}; |
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static const struct regulator_ops bd71828_dvs_buck_ops = { |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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.is_enabled = regulator_is_enabled_regmap, |
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.list_voltage = regulator_list_voltage_linear_range, |
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.set_voltage_sel = regulator_set_voltage_sel_regmap, |
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.get_voltage_sel = regulator_get_voltage_sel_regmap, |
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.set_voltage_time_sel = regulator_set_voltage_time_sel, |
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.set_ramp_delay = bd71828_set_ramp_delay, |
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}; |
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static const struct regulator_ops bd71828_ldo_ops = { |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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.is_enabled = regulator_is_enabled_regmap, |
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.list_voltage = regulator_list_voltage_linear_range, |
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.set_voltage_sel = regulator_set_voltage_sel_regmap, |
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.get_voltage_sel = regulator_get_voltage_sel_regmap, |
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}; |
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static const struct regulator_ops bd71828_ldo6_ops = { |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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.is_enabled = regulator_is_enabled_regmap, |
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}; |
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static const struct bd71828_regulator_data bd71828_rdata[] = { |
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{ |
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.desc = { |
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.name = "buck1", |
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.of_match = of_match_ptr("BUCK1"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK1, |
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.ops = &bd71828_dvs_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck1267_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), |
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.n_voltages = BD71828_BUCK1267_VOLTS, |
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.enable_reg = BD71828_REG_BUCK1_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
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.vsel_reg = BD71828_REG_BUCK1_VOLT, |
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.vsel_mask = BD71828_MASK_BUCK1267_VOLT, |
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.owner = THIS_MODULE, |
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.of_parse_cb = buck_set_hw_dvs_levels, |
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}, |
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.dvs = { |
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.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
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ROHM_DVS_LEVEL_SUSPEND | |
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ROHM_DVS_LEVEL_LPSR, |
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.run_reg = BD71828_REG_BUCK1_VOLT, |
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.run_mask = BD71828_MASK_BUCK1267_VOLT, |
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.idle_reg = BD71828_REG_BUCK1_IDLE_VOLT, |
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.idle_mask = BD71828_MASK_BUCK1267_VOLT, |
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.idle_on_mask = BD71828_MASK_IDLE_EN, |
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.suspend_reg = BD71828_REG_BUCK1_SUSP_VOLT, |
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.suspend_mask = BD71828_MASK_BUCK1267_VOLT, |
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.suspend_on_mask = BD71828_MASK_SUSP_EN, |
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.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
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/* |
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* LPSR voltage is same as SUSPEND voltage. Allow |
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* setting it so that regulator can be set enabled at |
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* LPSR state |
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*/ |
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.lpsr_reg = BD71828_REG_BUCK1_SUSP_VOLT, |
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.lpsr_mask = BD71828_MASK_BUCK1267_VOLT, |
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}, |
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.reg_inits = buck1_inits, |
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.reg_init_amnt = ARRAY_SIZE(buck1_inits), |
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}, |
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{ |
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.desc = { |
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.name = "buck2", |
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.of_match = of_match_ptr("BUCK2"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK2, |
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.ops = &bd71828_dvs_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck1267_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), |
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.n_voltages = BD71828_BUCK1267_VOLTS, |
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.enable_reg = BD71828_REG_BUCK2_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
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.vsel_reg = BD71828_REG_BUCK2_VOLT, |
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.vsel_mask = BD71828_MASK_BUCK1267_VOLT, |
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.owner = THIS_MODULE, |
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.of_parse_cb = buck_set_hw_dvs_levels, |
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}, |
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.dvs = { |
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.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
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ROHM_DVS_LEVEL_SUSPEND | |
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ROHM_DVS_LEVEL_LPSR, |
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.run_reg = BD71828_REG_BUCK2_VOLT, |
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.run_mask = BD71828_MASK_BUCK1267_VOLT, |
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.idle_reg = BD71828_REG_BUCK2_IDLE_VOLT, |
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.idle_mask = BD71828_MASK_BUCK1267_VOLT, |
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.idle_on_mask = BD71828_MASK_IDLE_EN, |
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.suspend_reg = BD71828_REG_BUCK2_SUSP_VOLT, |
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.suspend_mask = BD71828_MASK_BUCK1267_VOLT, |
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.suspend_on_mask = BD71828_MASK_SUSP_EN, |
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.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
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.lpsr_reg = BD71828_REG_BUCK2_SUSP_VOLT, |
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.lpsr_mask = BD71828_MASK_BUCK1267_VOLT, |
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}, |
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.reg_inits = buck2_inits, |
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.reg_init_amnt = ARRAY_SIZE(buck2_inits), |
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}, |
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{ |
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.desc = { |
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.name = "buck3", |
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.of_match = of_match_ptr("BUCK3"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK3, |
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.ops = &bd71828_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck3_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck3_volts), |
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.n_voltages = BD71828_BUCK3_VOLTS, |
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.enable_reg = BD71828_REG_BUCK3_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
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.vsel_reg = BD71828_REG_BUCK3_VOLT, |
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.vsel_mask = BD71828_MASK_BUCK3_VOLT, |
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.owner = THIS_MODULE, |
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.of_parse_cb = buck_set_hw_dvs_levels, |
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}, |
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.dvs = { |
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/* |
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* BUCK3 only supports single voltage for all states. |
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* voltage can be individually enabled for each state |
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* though => allow setting all states to support |
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* enabling power rail on different states. |
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*/ |
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.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
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ROHM_DVS_LEVEL_SUSPEND | |
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ROHM_DVS_LEVEL_LPSR, |
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.run_reg = BD71828_REG_BUCK3_VOLT, |
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.idle_reg = BD71828_REG_BUCK3_VOLT, |
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.suspend_reg = BD71828_REG_BUCK3_VOLT, |
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.lpsr_reg = BD71828_REG_BUCK3_VOLT, |
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.run_mask = BD71828_MASK_BUCK3_VOLT, |
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.idle_mask = BD71828_MASK_BUCK3_VOLT, |
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.suspend_mask = BD71828_MASK_BUCK3_VOLT, |
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.lpsr_mask = BD71828_MASK_BUCK3_VOLT, |
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.idle_on_mask = BD71828_MASK_IDLE_EN, |
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.suspend_on_mask = BD71828_MASK_SUSP_EN, |
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.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
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}, |
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}, |
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{ |
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.desc = { |
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.name = "buck4", |
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.of_match = of_match_ptr("BUCK4"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK4, |
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.ops = &bd71828_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck4_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck4_volts), |
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.n_voltages = BD71828_BUCK4_VOLTS, |
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.enable_reg = BD71828_REG_BUCK4_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
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.vsel_reg = BD71828_REG_BUCK4_VOLT, |
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.vsel_mask = BD71828_MASK_BUCK4_VOLT, |
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.owner = THIS_MODULE, |
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.of_parse_cb = buck_set_hw_dvs_levels, |
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}, |
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.dvs = { |
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/* |
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* BUCK4 only supports single voltage for all states. |
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* voltage can be individually enabled for each state |
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* though => allow setting all states to support |
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* enabling power rail on different states. |
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*/ |
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.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
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ROHM_DVS_LEVEL_SUSPEND | |
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ROHM_DVS_LEVEL_LPSR, |
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.run_reg = BD71828_REG_BUCK4_VOLT, |
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.idle_reg = BD71828_REG_BUCK4_VOLT, |
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.suspend_reg = BD71828_REG_BUCK4_VOLT, |
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.lpsr_reg = BD71828_REG_BUCK4_VOLT, |
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.run_mask = BD71828_MASK_BUCK4_VOLT, |
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.idle_mask = BD71828_MASK_BUCK4_VOLT, |
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.suspend_mask = BD71828_MASK_BUCK4_VOLT, |
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.lpsr_mask = BD71828_MASK_BUCK4_VOLT, |
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.idle_on_mask = BD71828_MASK_IDLE_EN, |
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.suspend_on_mask = BD71828_MASK_SUSP_EN, |
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.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
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}, |
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}, |
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{ |
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.desc = { |
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.name = "buck5", |
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.of_match = of_match_ptr("BUCK5"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK5, |
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.ops = &bd71828_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck5_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck5_volts), |
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.n_voltages = BD71828_BUCK5_VOLTS, |
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.enable_reg = BD71828_REG_BUCK5_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
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.vsel_reg = BD71828_REG_BUCK5_VOLT, |
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.vsel_mask = BD71828_MASK_BUCK5_VOLT, |
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.owner = THIS_MODULE, |
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.of_parse_cb = buck_set_hw_dvs_levels, |
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}, |
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.dvs = { |
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/* |
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* BUCK5 only supports single voltage for all states. |
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* voltage can be individually enabled for each state |
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* though => allow setting all states to support |
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* enabling power rail on different states. |
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*/ |
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.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
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ROHM_DVS_LEVEL_SUSPEND | |
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ROHM_DVS_LEVEL_LPSR, |
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.run_reg = BD71828_REG_BUCK5_VOLT, |
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.idle_reg = BD71828_REG_BUCK5_VOLT, |
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.suspend_reg = BD71828_REG_BUCK5_VOLT, |
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.lpsr_reg = BD71828_REG_BUCK5_VOLT, |
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.run_mask = BD71828_MASK_BUCK5_VOLT, |
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.idle_mask = BD71828_MASK_BUCK5_VOLT, |
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.suspend_mask = BD71828_MASK_BUCK5_VOLT, |
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.lpsr_mask = BD71828_MASK_BUCK5_VOLT, |
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.idle_on_mask = BD71828_MASK_IDLE_EN, |
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.suspend_on_mask = BD71828_MASK_SUSP_EN, |
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.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
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}, |
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}, |
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{ |
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.desc = { |
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.name = "buck6", |
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.of_match = of_match_ptr("BUCK6"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK6, |
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.ops = &bd71828_dvs_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck1267_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), |
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.n_voltages = BD71828_BUCK1267_VOLTS, |
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.enable_reg = BD71828_REG_BUCK6_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
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.vsel_reg = BD71828_REG_BUCK6_VOLT, |
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.vsel_mask = BD71828_MASK_BUCK1267_VOLT, |
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.owner = THIS_MODULE, |
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.of_parse_cb = buck_set_hw_dvs_levels, |
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}, |
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.dvs = { |
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.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
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ROHM_DVS_LEVEL_SUSPEND | |
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ROHM_DVS_LEVEL_LPSR, |
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.run_reg = BD71828_REG_BUCK6_VOLT, |
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.run_mask = BD71828_MASK_BUCK1267_VOLT, |
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.idle_reg = BD71828_REG_BUCK6_IDLE_VOLT, |
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.idle_mask = BD71828_MASK_BUCK1267_VOLT, |
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.idle_on_mask = BD71828_MASK_IDLE_EN, |
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.suspend_reg = BD71828_REG_BUCK6_SUSP_VOLT, |
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.suspend_mask = BD71828_MASK_BUCK1267_VOLT, |
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.suspend_on_mask = BD71828_MASK_SUSP_EN, |
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.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
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.lpsr_reg = BD71828_REG_BUCK6_SUSP_VOLT, |
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.lpsr_mask = BD71828_MASK_BUCK1267_VOLT, |
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}, |
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.reg_inits = buck6_inits, |
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.reg_init_amnt = ARRAY_SIZE(buck6_inits), |
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}, |
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{ |
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.desc = { |
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.name = "buck7", |
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.of_match = of_match_ptr("BUCK7"), |
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.regulators_node = of_match_ptr("regulators"), |
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.id = BD71828_BUCK7, |
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.ops = &bd71828_dvs_buck_ops, |
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.type = REGULATOR_VOLTAGE, |
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.linear_ranges = bd71828_buck1267_volts, |
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.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), |
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.n_voltages = BD71828_BUCK1267_VOLTS, |
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.enable_reg = BD71828_REG_BUCK7_EN, |
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.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_BUCK7_VOLT, |
|
.vsel_mask = BD71828_MASK_BUCK1267_VOLT, |
|
.owner = THIS_MODULE, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
}, |
|
.dvs = { |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_BUCK7_VOLT, |
|
.run_mask = BD71828_MASK_BUCK1267_VOLT, |
|
.idle_reg = BD71828_REG_BUCK7_IDLE_VOLT, |
|
.idle_mask = BD71828_MASK_BUCK1267_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_reg = BD71828_REG_BUCK7_SUSP_VOLT, |
|
.suspend_mask = BD71828_MASK_BUCK1267_VOLT, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
.lpsr_reg = BD71828_REG_BUCK7_SUSP_VOLT, |
|
.lpsr_mask = BD71828_MASK_BUCK1267_VOLT, |
|
}, |
|
.reg_inits = buck7_inits, |
|
.reg_init_amnt = ARRAY_SIZE(buck7_inits), |
|
}, |
|
{ |
|
.desc = { |
|
.name = "ldo1", |
|
.of_match = of_match_ptr("LDO1"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO1, |
|
.ops = &bd71828_ldo_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.linear_ranges = bd71828_ldo_volts, |
|
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), |
|
.n_voltages = BD71828_LDO_VOLTS, |
|
.enable_reg = BD71828_REG_LDO1_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_LDO1_VOLT, |
|
.vsel_mask = BD71828_MASK_LDO_VOLT, |
|
.owner = THIS_MODULE, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
}, |
|
.dvs = { |
|
/* |
|
* LDO1 only supports single voltage for all states. |
|
* voltage can be individually enabled for each state |
|
* though => allow setting all states to support |
|
* enabling power rail on different states. |
|
*/ |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_LDO1_VOLT, |
|
.idle_reg = BD71828_REG_LDO1_VOLT, |
|
.suspend_reg = BD71828_REG_LDO1_VOLT, |
|
.lpsr_reg = BD71828_REG_LDO1_VOLT, |
|
.run_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_mask = BD71828_MASK_LDO_VOLT, |
|
.suspend_mask = BD71828_MASK_LDO_VOLT, |
|
.lpsr_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
}, |
|
}, { |
|
.desc = { |
|
.name = "ldo2", |
|
.of_match = of_match_ptr("LDO2"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO2, |
|
.ops = &bd71828_ldo_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.linear_ranges = bd71828_ldo_volts, |
|
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), |
|
.n_voltages = BD71828_LDO_VOLTS, |
|
.enable_reg = BD71828_REG_LDO2_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_LDO2_VOLT, |
|
.vsel_mask = BD71828_MASK_LDO_VOLT, |
|
.owner = THIS_MODULE, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
}, |
|
.dvs = { |
|
/* |
|
* LDO2 only supports single voltage for all states. |
|
* voltage can be individually enabled for each state |
|
* though => allow setting all states to support |
|
* enabling power rail on different states. |
|
*/ |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_LDO2_VOLT, |
|
.idle_reg = BD71828_REG_LDO2_VOLT, |
|
.suspend_reg = BD71828_REG_LDO2_VOLT, |
|
.lpsr_reg = BD71828_REG_LDO2_VOLT, |
|
.run_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_mask = BD71828_MASK_LDO_VOLT, |
|
.suspend_mask = BD71828_MASK_LDO_VOLT, |
|
.lpsr_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
}, |
|
}, { |
|
.desc = { |
|
.name = "ldo3", |
|
.of_match = of_match_ptr("LDO3"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO3, |
|
.ops = &bd71828_ldo_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.linear_ranges = bd71828_ldo_volts, |
|
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), |
|
.n_voltages = BD71828_LDO_VOLTS, |
|
.enable_reg = BD71828_REG_LDO3_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_LDO3_VOLT, |
|
.vsel_mask = BD71828_MASK_LDO_VOLT, |
|
.owner = THIS_MODULE, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
}, |
|
.dvs = { |
|
/* |
|
* LDO3 only supports single voltage for all states. |
|
* voltage can be individually enabled for each state |
|
* though => allow setting all states to support |
|
* enabling power rail on different states. |
|
*/ |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_LDO3_VOLT, |
|
.idle_reg = BD71828_REG_LDO3_VOLT, |
|
.suspend_reg = BD71828_REG_LDO3_VOLT, |
|
.lpsr_reg = BD71828_REG_LDO3_VOLT, |
|
.run_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_mask = BD71828_MASK_LDO_VOLT, |
|
.suspend_mask = BD71828_MASK_LDO_VOLT, |
|
.lpsr_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
}, |
|
|
|
}, { |
|
.desc = { |
|
.name = "ldo4", |
|
.of_match = of_match_ptr("LDO4"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO4, |
|
.ops = &bd71828_ldo_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.linear_ranges = bd71828_ldo_volts, |
|
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), |
|
.n_voltages = BD71828_LDO_VOLTS, |
|
.enable_reg = BD71828_REG_LDO4_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_LDO4_VOLT, |
|
.vsel_mask = BD71828_MASK_LDO_VOLT, |
|
.owner = THIS_MODULE, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
}, |
|
.dvs = { |
|
/* |
|
* LDO1 only supports single voltage for all states. |
|
* voltage can be individually enabled for each state |
|
* though => allow setting all states to support |
|
* enabling power rail on different states. |
|
*/ |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_LDO4_VOLT, |
|
.idle_reg = BD71828_REG_LDO4_VOLT, |
|
.suspend_reg = BD71828_REG_LDO4_VOLT, |
|
.lpsr_reg = BD71828_REG_LDO4_VOLT, |
|
.run_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_mask = BD71828_MASK_LDO_VOLT, |
|
.suspend_mask = BD71828_MASK_LDO_VOLT, |
|
.lpsr_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
}, |
|
}, { |
|
.desc = { |
|
.name = "ldo5", |
|
.of_match = of_match_ptr("LDO5"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO5, |
|
.ops = &bd71828_ldo_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.linear_ranges = bd71828_ldo_volts, |
|
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), |
|
.n_voltages = BD71828_LDO_VOLTS, |
|
.enable_reg = BD71828_REG_LDO5_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_LDO5_VOLT, |
|
.vsel_mask = BD71828_MASK_LDO_VOLT, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
.owner = THIS_MODULE, |
|
}, |
|
/* |
|
* LDO5 is special. It can choose vsel settings to be configured |
|
* from 2 different registers (by GPIO). |
|
* |
|
* This driver supports only configuration where |
|
* BD71828_REG_LDO5_VOLT_L is used. |
|
*/ |
|
.dvs = { |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_LDO5_VOLT, |
|
.idle_reg = BD71828_REG_LDO5_VOLT, |
|
.suspend_reg = BD71828_REG_LDO5_VOLT, |
|
.lpsr_reg = BD71828_REG_LDO5_VOLT, |
|
.run_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_mask = BD71828_MASK_LDO_VOLT, |
|
.suspend_mask = BD71828_MASK_LDO_VOLT, |
|
.lpsr_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
}, |
|
|
|
}, { |
|
.desc = { |
|
.name = "ldo6", |
|
.of_match = of_match_ptr("LDO6"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO6, |
|
.ops = &bd71828_ldo6_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.fixed_uV = BD71828_LDO_6_VOLTAGE, |
|
.n_voltages = 1, |
|
.enable_reg = BD71828_REG_LDO6_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.owner = THIS_MODULE, |
|
/* |
|
* LDO6 only supports enable/disable for all states. |
|
* Voltage for LDO6 is fixed. |
|
*/ |
|
.of_parse_cb = ldo6_parse_dt, |
|
}, |
|
}, { |
|
.desc = { |
|
/* SNVS LDO in data-sheet */ |
|
.name = "ldo7", |
|
.of_match = of_match_ptr("LDO7"), |
|
.regulators_node = of_match_ptr("regulators"), |
|
.id = BD71828_LDO_SNVS, |
|
.ops = &bd71828_ldo_ops, |
|
.type = REGULATOR_VOLTAGE, |
|
.linear_ranges = bd71828_ldo_volts, |
|
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), |
|
.n_voltages = BD71828_LDO_VOLTS, |
|
.enable_reg = BD71828_REG_LDO7_EN, |
|
.enable_mask = BD71828_MASK_RUN_EN, |
|
.vsel_reg = BD71828_REG_LDO7_VOLT, |
|
.vsel_mask = BD71828_MASK_LDO_VOLT, |
|
.owner = THIS_MODULE, |
|
.of_parse_cb = buck_set_hw_dvs_levels, |
|
}, |
|
.dvs = { |
|
/* |
|
* LDO7 only supports single voltage for all states. |
|
* voltage can be individually enabled for each state |
|
* though => allow setting all states to support |
|
* enabling power rail on different states. |
|
*/ |
|
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | |
|
ROHM_DVS_LEVEL_SUSPEND | |
|
ROHM_DVS_LEVEL_LPSR, |
|
.run_reg = BD71828_REG_LDO7_VOLT, |
|
.idle_reg = BD71828_REG_LDO7_VOLT, |
|
.suspend_reg = BD71828_REG_LDO7_VOLT, |
|
.lpsr_reg = BD71828_REG_LDO7_VOLT, |
|
.run_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_mask = BD71828_MASK_LDO_VOLT, |
|
.suspend_mask = BD71828_MASK_LDO_VOLT, |
|
.lpsr_mask = BD71828_MASK_LDO_VOLT, |
|
.idle_on_mask = BD71828_MASK_IDLE_EN, |
|
.suspend_on_mask = BD71828_MASK_SUSP_EN, |
|
.lpsr_on_mask = BD71828_MASK_LPSR_EN, |
|
}, |
|
|
|
}, |
|
}; |
|
|
|
static int bd71828_probe(struct platform_device *pdev) |
|
{ |
|
int i, j, ret; |
|
struct regulator_config config = { |
|
.dev = pdev->dev.parent, |
|
}; |
|
|
|
config.regmap = dev_get_regmap(pdev->dev.parent, NULL); |
|
if (!config.regmap) |
|
return -ENODEV; |
|
|
|
for (i = 0; i < ARRAY_SIZE(bd71828_rdata); i++) { |
|
struct regulator_dev *rdev; |
|
const struct bd71828_regulator_data *rd; |
|
|
|
rd = &bd71828_rdata[i]; |
|
rdev = devm_regulator_register(&pdev->dev, |
|
&rd->desc, &config); |
|
if (IS_ERR(rdev)) { |
|
dev_err(&pdev->dev, |
|
"failed to register %s regulator\n", |
|
rd->desc.name); |
|
return PTR_ERR(rdev); |
|
} |
|
for (j = 0; j < rd->reg_init_amnt; j++) { |
|
ret = regmap_update_bits(config.regmap, |
|
rd->reg_inits[j].reg, |
|
rd->reg_inits[j].mask, |
|
rd->reg_inits[j].val); |
|
if (ret) { |
|
dev_err(&pdev->dev, |
|
"regulator %s init failed\n", |
|
rd->desc.name); |
|
return ret; |
|
} |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static struct platform_driver bd71828_regulator = { |
|
.driver = { |
|
.name = "bd71828-pmic" |
|
}, |
|
.probe = bd71828_probe, |
|
}; |
|
|
|
module_platform_driver(bd71828_regulator); |
|
|
|
MODULE_AUTHOR("Matti Vaittinen <[email protected]>"); |
|
MODULE_DESCRIPTION("BD71828 voltage regulator driver"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:bd71828-pmic");
|
|
|