| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Matti Vaittinen | 6951 | 95.65% | 25 | 73.53% |
| Guido Günther | 249 | 3.43% | 2 | 5.88% |
| Axel Lin | 63 | 0.87% | 6 | 17.65% |
| Yue haibing | 4 | 0.06% | 1 | 2.94% |
| Total | 7267 | 34 |
// SPDX-License-Identifier: GPL-2.0 // Copyright (C) 2018 ROHM Semiconductors // bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver #include <linux/delay.h> #include <linux/err.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/mfd/rohm-bd718x7.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/slab.h> /* Typical regulator startup times as per data sheet in uS */ #define BD71847_BUCK1_STARTUP_TIME 144 #define BD71847_BUCK2_STARTUP_TIME 162 #define BD71847_BUCK3_STARTUP_TIME 162 #define BD71847_BUCK4_STARTUP_TIME 240 #define BD71847_BUCK5_STARTUP_TIME 270 #define BD71847_BUCK6_STARTUP_TIME 200 #define BD71847_LDO1_STARTUP_TIME 440 #define BD71847_LDO2_STARTUP_TIME 370 #define BD71847_LDO3_STARTUP_TIME 310 #define BD71847_LDO4_STARTUP_TIME 400 #define BD71847_LDO5_STARTUP_TIME 530 #define BD71847_LDO6_STARTUP_TIME 400 #define BD71837_BUCK1_STARTUP_TIME 160 #define BD71837_BUCK2_STARTUP_TIME 180 #define BD71837_BUCK3_STARTUP_TIME 180 #define BD71837_BUCK4_STARTUP_TIME 180 #define BD71837_BUCK5_STARTUP_TIME 160 #define BD71837_BUCK6_STARTUP_TIME 240 #define BD71837_BUCK7_STARTUP_TIME 220 #define BD71837_BUCK8_STARTUP_TIME 200 #define BD71837_LDO1_STARTUP_TIME 440 #define BD71837_LDO2_STARTUP_TIME 370 #define BD71837_LDO3_STARTUP_TIME 310 #define BD71837_LDO4_STARTUP_TIME 400 #define BD71837_LDO5_STARTUP_TIME 310 #define BD71837_LDO6_STARTUP_TIME 400 #define BD71837_LDO7_STARTUP_TIME 530 /* * BD718(37/47/50) have two "enable control modes". ON/OFF can either be * controlled by software - or by PMIC internal HW state machine. Whether * regulator should be under SW or HW control can be defined from device-tree. * Let's provide separate ops for regulators to use depending on the "enable * control mode". */ #define BD718XX_HWOPNAME(swopname) swopname##_hwcontrol #define BD718XX_OPS(name, _list_voltage, _map_voltage, _set_voltage_sel, \ _get_voltage_sel, _set_voltage_time_sel, _set_ramp_delay, \ _set_uvp, _set_ovp) \ static const struct regulator_ops name = { \ .enable = regulator_enable_regmap, \ .disable = regulator_disable_regmap, \ .is_enabled = regulator_is_enabled_regmap, \ .list_voltage = (_list_voltage), \ .map_voltage = (_map_voltage), \ .set_voltage_sel = (_set_voltage_sel), \ .get_voltage_sel = (_get_voltage_sel), \ .set_voltage_time_sel = (_set_voltage_time_sel), \ .set_ramp_delay = (_set_ramp_delay), \ .set_under_voltage_protection = (_set_uvp), \ .set_over_voltage_protection = (_set_ovp), \ }; \ \ static const struct regulator_ops BD718XX_HWOPNAME(name) = { \ .is_enabled = always_enabled_by_hwstate, \ .list_voltage = (_list_voltage), \ .map_voltage = (_map_voltage), \ .set_voltage_sel = (_set_voltage_sel), \ .get_voltage_sel = (_get_voltage_sel), \ .set_voltage_time_sel = (_set_voltage_time_sel), \ .set_ramp_delay = (_set_ramp_delay), \ .set_under_voltage_protection = (_set_uvp), \ .set_over_voltage_protection = (_set_ovp), \ } \ /* * BUCK1/2/3/4 * BUCK1RAMPRATE[1:0] BUCK1 DVS ramp rate setting * 00: 10.00mV/usec 10mV 1uS * 01: 5.00mV/usec 10mV 2uS * 10: 2.50mV/usec 10mV 4uS * 11: 1.25mV/usec 10mV 8uS */ static const unsigned int bd718xx_ramp_delay[] = { 10000, 5000, 2500, 1250 }; /* These functions are used when regulators are under HW state machine control. * We assume PMIC is in RUN state because SW running and able to query the * status. Most of the regulators have fixed ON or OFF state at RUN/IDLE so for * them we just return a constant. BD71837 BUCK3 and BUCK4 are exceptions as * they support configuring the ON/OFF state for RUN. * * Note for next hacker - these PMICs have a register where the HW state can be * read. If assuming RUN appears to be false in your use-case - you can * implement state reading (although that is not going to be atomic) before * returning the enable state. */ static int always_enabled_by_hwstate(struct regulator_dev *rdev) { return 1; } static int never_enabled_by_hwstate(struct regulator_dev *rdev) { return 0; } static int bd71837_get_buck34_enable_hwctrl(struct regulator_dev *rdev) { int ret; unsigned int val; ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); if (ret) return ret; return !!(BD718XX_BUCK_RUN_ON & val); } static void voltage_change_done(struct regulator_dev *rdev, unsigned int sel, unsigned int *mask) { int ret; if (*mask) { /* * Let's allow scheduling as we use I2C anyways. We just need to * guarantee minimum of 1ms sleep - it shouldn't matter if we * exceed it due to the scheduling. */ msleep(1); ret = regmap_clear_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, *mask); if (ret) dev_err(&rdev->dev, "Failed to re-enable voltage monitoring (%d)\n", ret); } } static int voltage_change_prepare(struct regulator_dev *rdev, unsigned int sel, unsigned int *mask) { int ret; *mask = 0; if (rdev->desc->ops->is_enabled(rdev)) { int now, new; now = rdev->desc->ops->get_voltage_sel(rdev); if (now < 0) return now; now = rdev->desc->ops->list_voltage(rdev, now); if (now < 0) return now; new = rdev->desc->ops->list_voltage(rdev, sel); if (new < 0) return new; /* * If we increase LDO voltage when LDO is enabled we need to * disable the power-good detection until voltage has reached * the new level. According to HW colleagues the maximum time * it takes is 1000us. I assume that on systems with light load * this might be less - and we could probably use DT to give * system specific delay value if performance matters. * * Well, knowing we use I2C here and can add scheduling delays * I don't think it is worth the hassle and I just add fixed * 1ms sleep here (and allow scheduling). If this turns out to * be a problem we can change it to delay and make the delay * time configurable. */ if (new > now) { int tmp; int prot_bit; int ldo_offset = rdev->desc->id - BD718XX_LDO1; prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset; ret = regmap_read(rdev->regmap, BD718XX_REG_MVRFLTMASK2, &tmp); if (ret) { dev_err(&rdev->dev, "Failed to read voltage monitoring state\n"); return ret; } if (!(tmp & prot_bit)) { /* We disable protection if it was enabled... */ ret = regmap_set_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, prot_bit); /* ...and we also want to re-enable it */ *mask = prot_bit; } if (ret) { dev_err(&rdev->dev, "Failed to stop voltage monitoring\n"); return ret; } } } return 0; } static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev, unsigned int sel) { int ret; int mask; ret = voltage_change_prepare(rdev, sel, &mask); if (ret) return ret; ret = regulator_set_voltage_sel_regmap(rdev, sel); voltage_change_done(rdev, sel, &mask); return ret; } static int bd718xx_set_voltage_sel_pickable_restricted( struct regulator_dev *rdev, unsigned int sel) { int ret; int mask; ret = voltage_change_prepare(rdev, sel, &mask); if (ret) return ret; ret = regulator_set_voltage_sel_pickable_regmap(rdev, sel); voltage_change_done(rdev, sel, &mask); return ret; } static int bd71837_set_voltage_sel_pickable_restricted( struct regulator_dev *rdev, unsigned int sel) { if (rdev->desc->ops->is_enabled(rdev)) return -EBUSY; return regulator_set_voltage_sel_pickable_regmap(rdev, sel); } /* * BD71837 BUCK1/2/3/4 * BD71847 BUCK1/2 * 0.70 to 1.30V (10mV step) */ static const struct linear_range bd718xx_dvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000), REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0), }; /* * BD71837 BUCK5 * 0.7V to 1.35V (range 0) * and * 0.675 to 1.325 (range 1) */ static const struct linear_range bd71837_buck5_volts[] = { /* Ranges when VOLT_SEL bit is 0 */ REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), /* Ranges when VOLT_SEL bit is 1 */ REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000), REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000), REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000), }; /* * Range selector for first 3 linear ranges is 0x0 * and 0x1 for last 3 ranges. */ static const unsigned int bd71837_buck5_volt_range_sel[] = { 0x0, 0x0, 0x0, 0x80, 0x80, 0x80 }; /* * BD71847 BUCK3 */ static const struct linear_range bd71847_buck3_volts[] = { /* Ranges when VOLT_SEL bits are 00 */ REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), /* Ranges when VOLT_SEL bits are 01 */ REGULATOR_LINEAR_RANGE(550000, 0x0, 0x7, 50000), /* Ranges when VOLT_SEL bits are 11 */ REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000), REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000), REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000), }; static const unsigned int bd71847_buck3_volt_range_sel[] = { 0x0, 0x0, 0x0, 0x40, 0x80, 0x80, 0x80 }; static const struct linear_range bd71847_buck4_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000), }; static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x40 }; /* * BUCK6 * 3.0V to 3.3V (step 100mV) */ static const struct linear_range bd71837_buck6_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), }; /* * BD71837 BUCK7 * BD71847 BUCK5 * 000 = 1.605V * 001 = 1.695V * 010 = 1.755V * 011 = 1.8V (Initial) * 100 = 1.845V * 101 = 1.905V * 110 = 1.95V * 111 = 1.995V */ static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = { 1605000, 1695000, 1755000, 1800000, 1845000, 1905000, 1950000, 1995000 }; /* * BUCK8 * 0.8V to 1.40V (step 10mV) */ static const struct linear_range bd718xx_4th_nodvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000), }; /* * LDO1 * 3.0 to 3.3V (100mV step) */ static const struct linear_range bd718xx_ldo1_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), }; static const unsigned int bd718xx_ldo1_volt_range_sel[] = { 0x0, 0x20 }; /* * LDO2 * 0.8 or 0.9V */ static const unsigned int ldo_2_volts[] = { 900000, 800000 }; /* * LDO3 * 1.8 to 3.3V (100mV step) */ static const struct linear_range bd718xx_ldo3_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; /* * LDO4 * 0.9 to 1.8V (100mV step) */ static const struct linear_range bd718xx_ldo4_volts[] = { REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), }; /* * LDO5 for BD71837 * 1.8 to 3.3V (100mV step) */ static const struct linear_range bd71837_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; /* * LDO5 for BD71837 * 1.8 to 3.3V (100mV step) */ static const struct linear_range bd71847_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), REGULATOR_LINEAR_RANGE(800000, 0x00, 0x0F, 100000), }; static const unsigned int bd71847_ldo5_volt_range_sel[] = { 0x0, 0x20 }; /* * LDO6 * 0.9 to 1.8V (100mV step) */ static const struct linear_range bd718xx_ldo6_volts[] = { REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), }; /* * LDO7 * 1.8 to 3.3V (100mV step) */ static const struct linear_range bd71837_ldo7_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; struct reg_init { unsigned int reg; unsigned int mask; unsigned int val; }; struct bd718xx_regulator_data { struct regulator_desc desc; const struct rohm_dvs_config dvs; const struct reg_init init; const struct reg_init *additional_inits; int additional_init_amnt; }; static int bd718x7_xvp_sanity_check(struct regulator_dev *rdev, int lim_uV, int severity) { /* * BD71837/47/50 ... (ICs supported by this driver) do not provide * warnings, only protection */ if (severity != REGULATOR_SEVERITY_PROT) { dev_err(&rdev->dev, "Unsupported Under Voltage protection level\n"); return -EINVAL; } /* * And protection limit is not changeable. It can only be enabled * or disabled */ if (lim_uV) return -EINVAL; return 0; } static int bd718x7_set_ldo_uvp(struct regulator_dev *rdev, int lim_uV, int severity, bool enable) { int ldo_offset = rdev->desc->id - BD718XX_LDO1; int prot_bit, ret; ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity); if (ret) return ret; prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset; if (enable) return regmap_clear_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, prot_bit); return regmap_set_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2, prot_bit); } static int bd718x7_get_buck_prot_reg(int id, int *reg) { if (id > BD718XX_BUCK8) { WARN_ON(id > BD718XX_BUCK8); return -EINVAL; } if (id > BD718XX_BUCK4) *reg = BD718XX_REG_MVRFLTMASK0; else *reg = BD718XX_REG_MVRFLTMASK1; return 0; } static int bd718x7_get_buck_ovp_info(int id, int *reg, int *bit) { int ret; ret = bd718x7_get_buck_prot_reg(id, reg); if (ret) return ret; *bit = BIT((id % 4) * 2 + 1); return 0; } static int bd718x7_get_buck_uvp_info(int id, int *reg, int *bit) { int ret; ret = bd718x7_get_buck_prot_reg(id, reg); if (ret) return ret; *bit = BIT((id % 4) * 2); return 0; } static int bd718x7_set_buck_uvp(struct regulator_dev *rdev, int lim_uV, int severity, bool enable) { int bit, reg, ret; ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity); if (ret) return ret; ret = bd718x7_get_buck_uvp_info(rdev->desc->id, ®, &bit); if (ret) return ret; if (enable) return regmap_clear_bits(rdev->regmap, reg, bit); return regmap_set_bits(rdev->regmap, reg, bit); } static int bd718x7_set_buck_ovp(struct regulator_dev *rdev, int lim_uV, int severity, bool enable) { int bit, reg, ret; ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity); if (ret) return ret; ret = bd718x7_get_buck_ovp_info(rdev->desc->id, ®, &bit); if (ret) return ret; if (enable) return regmap_clear_bits(rdev->regmap, reg, bit); return regmap_set_bits(rdev->regmap, reg, bit); } /* * OPS common for BD71847 and BD71850 */ BD718XX_OPS(bd718xx_pickable_range_ldo_ops, regulator_list_voltage_pickable_linear_range, NULL, bd718xx_set_voltage_sel_pickable_restricted, regulator_get_voltage_sel_pickable_regmap, NULL, NULL, bd718x7_set_ldo_uvp, NULL); /* BD71847 and BD71850 LDO 5 is by default OFF at RUN state */ static const struct regulator_ops bd718xx_ldo5_ops_hwstate = { .is_enabled = never_enabled_by_hwstate, .list_voltage = regulator_list_voltage_pickable_linear_range, .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted, .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, .set_under_voltage_protection = bd718x7_set_ldo_uvp, }; BD718XX_OPS(bd718xx_pickable_range_buck_ops, regulator_list_voltage_pickable_linear_range, NULL, regulator_set_voltage_sel_pickable_regmap, regulator_get_voltage_sel_pickable_regmap, regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); BD718XX_OPS(bd718xx_ldo_regulator_ops, regulator_list_voltage_linear_range, NULL, bd718xx_set_voltage_sel_restricted, regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, NULL); BD718XX_OPS(bd718xx_ldo_regulator_nolinear_ops, regulator_list_voltage_table, NULL, bd718xx_set_voltage_sel_restricted, regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, NULL); BD718XX_OPS(bd718xx_buck_regulator_ops, regulator_list_voltage_linear_range, NULL, regulator_set_voltage_sel_regmap, regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); BD718XX_OPS(bd718xx_buck_regulator_nolinear_ops, regulator_list_voltage_table, regulator_map_voltage_ascend, regulator_set_voltage_sel_regmap, regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); /* * OPS for BD71837 */ BD718XX_OPS(bd71837_pickable_range_ldo_ops, regulator_list_voltage_pickable_linear_range, NULL, bd71837_set_voltage_sel_pickable_restricted, regulator_get_voltage_sel_pickable_regmap, NULL, NULL, bd718x7_set_ldo_uvp, NULL); BD718XX_OPS(bd71837_pickable_range_buck_ops, regulator_list_voltage_pickable_linear_range, NULL, bd71837_set_voltage_sel_pickable_restricted, regulator_get_voltage_sel_pickable_regmap, regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); BD718XX_OPS(bd71837_ldo_regulator_ops, regulator_list_voltage_linear_range, NULL, rohm_regulator_set_voltage_sel_restricted, regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, NULL); BD718XX_OPS(bd71837_ldo_regulator_nolinear_ops, regulator_list_voltage_table, NULL, rohm_regulator_set_voltage_sel_restricted, regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp, NULL); BD718XX_OPS(bd71837_buck_regulator_ops, regulator_list_voltage_linear_range, NULL, rohm_regulator_set_voltage_sel_restricted, regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); BD718XX_OPS(bd71837_buck_regulator_nolinear_ops, regulator_list_voltage_table, regulator_map_voltage_ascend, rohm_regulator_set_voltage_sel_restricted, regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); /* * BD71837 bucks 3 and 4 support defining their enable/disable state also * when buck enable state is under HW state machine control. In that case the * bit [2] in CTRL register is used to indicate if regulator should be ON. */ static const struct regulator_ops bd71837_buck34_ops_hwctrl = { .is_enabled = bd71837_get_buck34_enable_hwctrl, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = regulator_set_ramp_delay_regmap, .set_under_voltage_protection = bd718x7_set_buck_uvp, .set_over_voltage_protection = bd718x7_set_buck_ovp, }; /* * OPS for all of the ICs - BD718(37/47/50) */ BD718XX_OPS(bd718xx_dvs_buck_regulator_ops, regulator_list_voltage_linear_range, NULL, regulator_set_voltage_sel_regmap, regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel, regulator_set_ramp_delay_regmap, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp); /* * There is a HW quirk in BD71837. The shutdown sequence timings for * bucks/LDOs which are controlled via register interface are changed. * At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the * beginning of shut-down sequence. As bucks 6 and 7 are parent * supplies for LDO5 and LDO6 - this causes LDO5/6 voltage * monitoring to errorneously detect under voltage and force PMIC to * emergency state instead of poweroff. In order to avoid this we * disable voltage monitoring for LDO5 and LDO6 */ static const struct reg_init bd71837_ldo5_inits[] = { { .reg = BD718XX_REG_MVRFLTMASK2, .mask = BD718XX_LDO5_VRMON80, .val = BD718XX_LDO5_VRMON80, }, }; static const struct reg_init bd71837_ldo6_inits[] = { { .reg = BD718XX_REG_MVRFLTMASK2, .mask = BD718XX_LDO6_VRMON80, .val = BD718XX_LDO6_VRMON80, }, }; static int buck_set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { struct bd718xx_regulator_data *data; data = container_of(desc, struct bd718xx_regulator_data, desc); return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap); } static const struct regulator_ops *bd71847_swcontrol_ops[] = { &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, &bd718xx_pickable_range_buck_ops, &bd718xx_pickable_range_buck_ops, &bd718xx_buck_regulator_nolinear_ops, &bd718xx_buck_regulator_ops, &bd718xx_pickable_range_ldo_ops, &bd718xx_ldo_regulator_nolinear_ops, &bd718xx_ldo_regulator_ops, &bd718xx_ldo_regulator_ops, &bd718xx_pickable_range_ldo_ops, &bd718xx_ldo_regulator_ops, }; static const struct regulator_ops *bd71847_hwcontrol_ops[] = { &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), &BD718XX_HWOPNAME(bd718xx_pickable_range_buck_ops), &BD718XX_HWOPNAME(bd718xx_pickable_range_buck_ops), &BD718XX_HWOPNAME(bd718xx_buck_regulator_nolinear_ops), &BD718XX_HWOPNAME(bd718xx_buck_regulator_ops), &BD718XX_HWOPNAME(bd718xx_pickable_range_ldo_ops), &BD718XX_HWOPNAME(bd718xx_ldo_regulator_nolinear_ops), &BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops), &BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops), &bd718xx_ldo5_ops_hwstate, &BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops), }; static struct bd718xx_regulator_data bd71847_regulators[] = { { .desc = { .name = "buck1", .of_match = of_match_ptr("BUCK1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK1, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK1_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71847_BUCK1_STARTUP_TIME, .owner = THIS_MODULE, .ramp_delay_table = bd718xx_ramp_delay, .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), .ramp_reg = BD718XX_REG_BUCK1_CTRL, .ramp_mask = BUCK_RAMPRATE_MASK, .of_parse_cb = buck_set_hw_dvs_levels, }, .dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | ROHM_DVS_LEVEL_SUSPEND, .run_reg = BD718XX_REG_BUCK1_VOLT_RUN, .run_mask = DVS_BUCK_RUN_MASK, .idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE, .idle_mask = DVS_BUCK_RUN_MASK, .suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP, .suspend_mask = DVS_BUCK_RUN_MASK, }, .init = { .reg = BD718XX_REG_BUCK1_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck2", .of_match = of_match_ptr("BUCK2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK2, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK2_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71847_BUCK2_STARTUP_TIME, .ramp_delay_table = bd718xx_ramp_delay, .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), .ramp_reg = BD718XX_REG_BUCK2_CTRL, .ramp_mask = BUCK_RAMPRATE_MASK, .owner = THIS_MODULE, .of_parse_cb = buck_set_hw_dvs_levels, }, .dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE, .run_reg = BD718XX_REG_BUCK2_VOLT_RUN, .run_mask = DVS_BUCK_RUN_MASK, .idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE, .idle_mask = DVS_BUCK_RUN_MASK, }, .init = { .reg = BD718XX_REG_BUCK2_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck3", .of_match = of_match_ptr("BUCK3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK3, .type = REGULATOR_VOLTAGE, .n_voltages = BD71847_BUCK3_VOLTAGE_NUM, .linear_ranges = bd71847_buck3_volts, .n_linear_ranges = ARRAY_SIZE(bd71847_buck3_volts), .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_1ST_NODVS_BUCK_MASK, .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_range_mask = BD71847_BUCK3_RANGE_MASK, .linear_range_selectors = bd71847_buck3_volt_range_sel, .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71847_BUCK3_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck4", .of_match = of_match_ptr("BUCK4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK4, .type = REGULATOR_VOLTAGE, .n_voltages = BD71847_BUCK4_VOLTAGE_NUM, .linear_ranges = bd71847_buck4_volts, .n_linear_ranges = ARRAY_SIZE(bd71847_buck4_volts), .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, .vsel_mask = BD71847_BUCK4_MASK, .vsel_range_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, .vsel_range_mask = BD71847_BUCK4_RANGE_MASK, .linear_range_selectors = bd71847_buck4_volt_range_sel, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71847_BUCK4_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck5", .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK5, .type = REGULATOR_VOLTAGE, .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), .vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71847_BUCK5_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck6", .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK6, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_4th_nodvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts), .vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71847_BUCK6_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "ldo1", .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO1, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo1_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts), .vsel_reg = BD718XX_REG_LDO1_VOLT, .vsel_mask = BD718XX_LDO1_MASK, .vsel_range_reg = BD718XX_REG_LDO1_VOLT, .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, .linear_range_selectors = bd718xx_ldo1_volt_range_sel, .enable_reg = BD718XX_REG_LDO1_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71847_LDO1_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO1_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo2", .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO2, .type = REGULATOR_VOLTAGE, .volt_table = &ldo_2_volts[0], .vsel_reg = BD718XX_REG_LDO2_VOLT, .vsel_mask = BD718XX_LDO2_MASK, .n_voltages = ARRAY_SIZE(ldo_2_volts), .enable_reg = BD718XX_REG_LDO2_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71847_LDO2_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO2_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo3", .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO3, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo3_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts), .vsel_reg = BD718XX_REG_LDO3_VOLT, .vsel_mask = BD718XX_LDO3_MASK, .enable_reg = BD718XX_REG_LDO3_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71847_LDO3_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO3_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo4", .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO4, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo4_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts), .vsel_reg = BD718XX_REG_LDO4_VOLT, .vsel_mask = BD718XX_LDO4_MASK, .enable_reg = BD718XX_REG_LDO4_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71847_LDO4_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO4_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo5", .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO5, .type = REGULATOR_VOLTAGE, .n_voltages = BD71847_LDO5_VOLTAGE_NUM, .linear_ranges = bd71847_ldo5_volts, .n_linear_ranges = ARRAY_SIZE(bd71847_ldo5_volts), .vsel_reg = BD718XX_REG_LDO5_VOLT, .vsel_mask = BD71847_LDO5_MASK, .vsel_range_reg = BD718XX_REG_LDO5_VOLT, .vsel_range_mask = BD71847_LDO5_RANGE_MASK, .linear_range_selectors = bd71847_ldo5_volt_range_sel, .enable_reg = BD718XX_REG_LDO5_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71847_LDO5_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO5_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo6", .of_match = of_match_ptr("LDO6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO6, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo6_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts), /* LDO6 is supplied by buck5 */ .supply_name = "buck5", .vsel_reg = BD718XX_REG_LDO6_VOLT, .vsel_mask = BD718XX_LDO6_MASK, .enable_reg = BD718XX_REG_LDO6_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71847_LDO6_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO6_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, }; static const struct regulator_ops *bd71837_swcontrol_ops[] = { &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops, &bd71837_pickable_range_buck_ops, &bd71837_buck_regulator_ops, &bd71837_buck_regulator_nolinear_ops, &bd71837_buck_regulator_ops, &bd71837_pickable_range_ldo_ops, &bd71837_ldo_regulator_nolinear_ops, &bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops, }; static const struct regulator_ops *bd71837_hwcontrol_ops[] = { &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), &BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops), &bd71837_buck34_ops_hwctrl, &bd71837_buck34_ops_hwctrl, &BD718XX_HWOPNAME(bd71837_pickable_range_buck_ops), &BD718XX_HWOPNAME(bd71837_buck_regulator_ops), &BD718XX_HWOPNAME(bd71837_buck_regulator_nolinear_ops), &BD718XX_HWOPNAME(bd71837_buck_regulator_ops), &BD718XX_HWOPNAME(bd71837_pickable_range_ldo_ops), &BD718XX_HWOPNAME(bd71837_ldo_regulator_nolinear_ops), &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), &BD718XX_HWOPNAME(bd71837_ldo_regulator_ops), }; static struct bd718xx_regulator_data bd71837_regulators[] = { { .desc = { .name = "buck1", .of_match = of_match_ptr("BUCK1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK1, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK1_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK1_STARTUP_TIME, .ramp_delay_table = bd718xx_ramp_delay, .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), .ramp_reg = BD718XX_REG_BUCK1_CTRL, .ramp_mask = BUCK_RAMPRATE_MASK, .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, .run_reg = BD718XX_REG_BUCK1_VOLT_RUN, .run_mask = DVS_BUCK_RUN_MASK, .idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE, .idle_mask = DVS_BUCK_RUN_MASK, .suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP, .suspend_mask = DVS_BUCK_RUN_MASK, }, .init = { .reg = BD718XX_REG_BUCK1_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck2", .of_match = of_match_ptr("BUCK2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK2, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK2_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK2_STARTUP_TIME, .ramp_delay_table = bd718xx_ramp_delay, .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), .ramp_reg = BD718XX_REG_BUCK2_CTRL, .ramp_mask = BUCK_RAMPRATE_MASK, .owner = THIS_MODULE, .of_parse_cb = buck_set_hw_dvs_levels, }, .dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE, .run_reg = BD718XX_REG_BUCK2_VOLT_RUN, .run_mask = DVS_BUCK_RUN_MASK, .idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE, .idle_mask = DVS_BUCK_RUN_MASK, }, .init = { .reg = BD718XX_REG_BUCK2_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck3", .of_match = of_match_ptr("BUCK3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK3, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD71837_REG_BUCK3_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD71837_REG_BUCK3_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK3_STARTUP_TIME, .ramp_delay_table = bd718xx_ramp_delay, .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), .ramp_reg = BD71837_REG_BUCK3_CTRL, .ramp_mask = BUCK_RAMPRATE_MASK, .owner = THIS_MODULE, .of_parse_cb = buck_set_hw_dvs_levels, }, .dvs = { .level_map = ROHM_DVS_LEVEL_RUN, .run_reg = BD71837_REG_BUCK3_VOLT_RUN, .run_mask = DVS_BUCK_RUN_MASK, }, .init = { .reg = BD71837_REG_BUCK3_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck4", .of_match = of_match_ptr("BUCK4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK4, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD71837_REG_BUCK4_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD71837_REG_BUCK4_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK4_STARTUP_TIME, .ramp_delay_table = bd718xx_ramp_delay, .n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay), .ramp_reg = BD71837_REG_BUCK4_CTRL, .ramp_mask = BUCK_RAMPRATE_MASK, .owner = THIS_MODULE, .of_parse_cb = buck_set_hw_dvs_levels, }, .dvs = { .level_map = ROHM_DVS_LEVEL_RUN, .run_reg = BD71837_REG_BUCK4_VOLT_RUN, .run_mask = DVS_BUCK_RUN_MASK, }, .init = { .reg = BD71837_REG_BUCK4_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck5", .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK5, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_BUCK5_VOLTAGE_NUM, .linear_ranges = bd71837_buck5_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_buck5_volts), .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_mask = BD71837_BUCK5_MASK, .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_range_mask = BD71837_BUCK5_RANGE_MASK, .linear_range_selectors = bd71837_buck5_volt_range_sel, .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK5_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck6", .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK6, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_BUCK6_VOLTAGE_NUM, .linear_ranges = bd71837_buck6_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_buck6_volts), .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, .vsel_mask = BD71837_BUCK6_MASK, .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK6_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck7", .of_match = of_match_ptr("BUCK7"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK7, .type = REGULATOR_VOLTAGE, .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), .vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK7_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck8", .of_match = of_match_ptr("BUCK8"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK8, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_4th_nodvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts), .vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .enable_time = BD71837_BUCK8_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "ldo1", .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO1, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo1_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts), .vsel_reg = BD718XX_REG_LDO1_VOLT, .vsel_mask = BD718XX_LDO1_MASK, .vsel_range_reg = BD718XX_REG_LDO1_VOLT, .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, .linear_range_selectors = bd718xx_ldo1_volt_range_sel, .enable_reg = BD718XX_REG_LDO1_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO1_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO1_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo2", .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO2, .type = REGULATOR_VOLTAGE, .volt_table = &ldo_2_volts[0], .vsel_reg = BD718XX_REG_LDO2_VOLT, .vsel_mask = BD718XX_LDO2_MASK, .n_voltages = ARRAY_SIZE(ldo_2_volts), .enable_reg = BD718XX_REG_LDO2_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO2_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO2_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo3", .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO3, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo3_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts), .vsel_reg = BD718XX_REG_LDO3_VOLT, .vsel_mask = BD718XX_LDO3_MASK, .enable_reg = BD718XX_REG_LDO3_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO3_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO3_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo4", .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO4, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo4_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts), .vsel_reg = BD718XX_REG_LDO4_VOLT, .vsel_mask = BD718XX_LDO4_MASK, .enable_reg = BD718XX_REG_LDO4_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO4_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO4_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo5", .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO5, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_LDO5_VOLTAGE_NUM, .linear_ranges = bd71837_ldo5_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_ldo5_volts), /* LDO5 is supplied by buck6 */ .supply_name = "buck6", .vsel_reg = BD718XX_REG_LDO5_VOLT, .vsel_mask = BD71837_LDO5_MASK, .enable_reg = BD718XX_REG_LDO5_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO5_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO5_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, .additional_inits = bd71837_ldo5_inits, .additional_init_amnt = ARRAY_SIZE(bd71837_ldo5_inits), }, { .desc = { .name = "ldo6", .of_match = of_match_ptr("LDO6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO6, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo6_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts), /* LDO6 is supplied by buck7 */ .supply_name = "buck7", .vsel_reg = BD718XX_REG_LDO6_VOLT, .vsel_mask = BD718XX_LDO6_MASK, .enable_reg = BD718XX_REG_LDO6_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO6_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO6_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, .additional_inits = bd71837_ldo6_inits, .additional_init_amnt = ARRAY_SIZE(bd71837_ldo6_inits), }, { .desc = { .name = "ldo7", .of_match = of_match_ptr("LDO7"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO7, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_LDO7_VOLTAGE_NUM, .linear_ranges = bd71837_ldo7_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_ldo7_volts), .vsel_reg = BD71837_REG_LDO7_VOLT, .vsel_mask = BD71837_LDO7_MASK, .enable_reg = BD71837_REG_LDO7_VOLT, .enable_mask = BD718XX_LDO_EN, .enable_time = BD71837_LDO7_STARTUP_TIME, .owner = THIS_MODULE, }, .init = { .reg = BD71837_REG_LDO7_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, }; static void mark_hw_controlled(struct device *dev, struct device_node *np, struct bd718xx_regulator_data *reg_data, unsigned int num_reg_data, int *info) { int i; for (i = 1; i <= num_reg_data; i++) { if (!of_node_name_eq(np, reg_data[i-1].desc.of_match)) continue; *info |= 1 << (i - 1); dev_dbg(dev, "regulator %d runlevel controlled\n", i); return; } dev_warn(dev, "Bad regulator node\n"); } /* * Setups where regulator (especially the buck8) output voltage is scaled * by adding external connection where some other regulator output is connected * to feedback-pin (over suitable resistors) is getting popular amongst users * of BD71837. (This allows for example scaling down the buck8 voltages to suit * lover GPU voltages for projects where buck8 is (ab)used to supply power * for GPU. Additionally some setups do allow DVS for buck8 but as this do * produce voltage spikes the HW must be evaluated to be able to survive this * - hence I keep the DVS disabled for non DVS bucks by default. I don't want * to help you burn your proto board) * * So we allow describing this external connection from DT and scale the * voltages accordingly. This is what the connection should look like: * * |------------| * | buck 8 |-------+----->Vout * | | | * |------------| | * | FB pin | * | | * +-------+--R2---+ * | * R1 * | * V FB-pull-up * * Here the buck output is sifted according to formula: * * Vout_o = Vo - (Vpu - Vo)*R2/R1 * Linear_step = step_orig*(R1+R2)/R1 * * where: * Vout_o is adjusted voltage output at vsel reg value 0 * Vo is original voltage output at vsel reg value 0 * Vpu is the pull-up voltage V FB-pull-up in the picture * R1 and R2 are resistor values. * * As a real world example for buck8 and a specific GPU: * VLDO = 1.6V (used as FB-pull-up) * R1 = 1000ohms * R2 = 150ohms * VSEL 0x0 => 0.8V – (VLDO – 0.8) * R2 / R1 = 0.68V * Linear Step = 10mV * (R1 + R2) / R1 = 11.5mV */ static int setup_feedback_loop(struct device *dev, struct device_node *np, struct bd718xx_regulator_data *reg_data, unsigned int num_reg_data, int fb_uv) { int i, r1, r2, ret; /* * We do adjust the values in the global desc based on DT settings. * This may not be best approach as it can cause problems if more than * one PMIC is controlled from same processor. I don't see such use-case * for BD718x7 now - so we spare some bits. * * If this will point out to be a problem - then we can allocate new * bd718xx_regulator_data array at probe and just use the global * array as a template where we copy initial values. Then we can * use allocated descs for regultor registration and do IC specific * modifications to this copy while leaving other PMICs untouched. But * that means allocating new array for each PMIC - and currently I see * no need for that. */ for (i = 0; i < num_reg_data; i++) { struct regulator_desc *desc = ®_data[i].desc; int j; if (!of_node_name_eq(np, desc->of_match)) continue; /* The feedback loop connection does not make sense for LDOs */ if (desc->id >= BD718XX_LDO1) return -EINVAL; ret = of_property_read_u32(np, "rohm,feedback-pull-up-r1-ohms", &r1); if (ret) return ret; if (!r1) return -EINVAL; ret = of_property_read_u32(np, "rohm,feedback-pull-up-r2-ohms", &r2); if (ret) return ret; if (desc->n_linear_ranges && desc->linear_ranges) { struct linear_range *new; new = devm_kzalloc(dev, desc->n_linear_ranges * sizeof(struct linear_range), GFP_KERNEL); if (!new) return -ENOMEM; for (j = 0; j < desc->n_linear_ranges; j++) { int min = desc->linear_ranges[j].min; int step = desc->linear_ranges[j].step; min -= (fb_uv - min)*r2/r1; step = step * (r1 + r2); step /= r1; new[j].min = min; new[j].step = step; dev_dbg(dev, "%s: old range min %d, step %d\n", desc->name, desc->linear_ranges[j].min, desc->linear_ranges[j].step); dev_dbg(dev, "new range min %d, step %d\n", min, step); } desc->linear_ranges = new; } dev_dbg(dev, "regulator '%s' has FB pull-up configured\n", desc->name); return 0; } return -ENODEV; } static int get_special_regulators(struct device *dev, struct bd718xx_regulator_data *reg_data, unsigned int num_reg_data, int *info) { int ret; struct device_node *np; struct device_node *nproot = dev->of_node; int uv; *info = 0; nproot = of_get_child_by_name(nproot, "regulators"); if (!nproot) { dev_err(dev, "failed to find regulators node\n"); return -ENODEV; } for_each_child_of_node(nproot, np) { if (of_property_read_bool(np, "rohm,no-regulator-enable-control")) mark_hw_controlled(dev, np, reg_data, num_reg_data, info); ret = of_property_read_u32(np, "rohm,fb-pull-up-microvolt", &uv); if (ret) { if (ret == -EINVAL) continue; else goto err_out; } ret = setup_feedback_loop(dev, np, reg_data, num_reg_data, uv); if (ret) goto err_out; } of_node_put(nproot); return 0; err_out: of_node_put(np); of_node_put(nproot); return ret; } static int bd718xx_probe(struct platform_device *pdev) { struct regmap *regmap; struct regulator_config config = { 0 }; int i, j, err, omit_enable; bool use_snvs; struct bd718xx_regulator_data *reg_data; unsigned int num_reg_data; enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data; const struct regulator_ops **swops, **hwops; regmap = dev_get_regmap(pdev->dev.parent, NULL); if (!regmap) { dev_err(&pdev->dev, "No MFD driver data\n"); return -EINVAL; } switch (chip) { case ROHM_CHIP_TYPE_BD71837: reg_data = bd71837_regulators; num_reg_data = ARRAY_SIZE(bd71837_regulators); swops = &bd71837_swcontrol_ops[0]; hwops = &bd71837_hwcontrol_ops[0]; break; case ROHM_CHIP_TYPE_BD71847: reg_data = bd71847_regulators; num_reg_data = ARRAY_SIZE(bd71847_regulators); swops = &bd71847_swcontrol_ops[0]; hwops = &bd71847_hwcontrol_ops[0]; break; default: dev_err(&pdev->dev, "Unsupported chip type\n"); return -EINVAL; } /* Register LOCK release */ err = regmap_update_bits(regmap, BD718XX_REG_REGLOCK, (REGLOCK_PWRSEQ | REGLOCK_VREG), 0); if (err) return dev_err_probe(&pdev->dev, err, "Failed to unlock PMIC\n"); dev_dbg(&pdev->dev, "Unlocked lock register 0x%x\n", BD718XX_REG_REGLOCK); use_snvs = of_property_read_bool(pdev->dev.parent->of_node, "rohm,reset-snvs-powered"); /* * Change the next stage from poweroff to be READY instead of SNVS * for all reset types because OTP loading at READY will clear SEL * bit allowing HW defaults for power rails to be used */ if (!use_snvs) { err = regmap_update_bits(regmap, BD718XX_REG_TRANS_COND1, BD718XX_ON_REQ_POWEROFF_MASK | BD718XX_SWRESET_POWEROFF_MASK | BD718XX_WDOG_POWEROFF_MASK | BD718XX_KEY_L_POWEROFF_MASK, BD718XX_POWOFF_TO_RDY); if (err) return dev_err_probe(&pdev->dev, err, "Failed to change reset target\n"); dev_dbg(&pdev->dev, "Changed all resets from SVNS to READY\n"); } config.dev = pdev->dev.parent; config.regmap = regmap; /* * There are cases when we want to leave the enable-control for * the HW state machine and use this driver only for voltage control. * One special case is when we use PMIC_STBY_REQ line from SoC to PMIC * in order to set the system to SUSPEND state. * * If regulator is taken under SW control the regulator state will not * be affected by PMIC state machine - Eg. regulator is likely to stay * on even in SUSPEND */ err = get_special_regulators(pdev->dev.parent, reg_data, num_reg_data, &omit_enable); if (err) return err; for (i = 0; i < num_reg_data; i++) { struct regulator_desc *desc; struct regulator_dev *rdev; struct bd718xx_regulator_data *r; int no_enable_control = omit_enable & (1 << i); r = ®_data[i]; desc = &r->desc; if (no_enable_control) desc->ops = hwops[i]; else desc->ops = swops[i]; rdev = devm_regulator_register(&pdev->dev, desc, &config); if (IS_ERR(rdev)) return dev_err_probe(&pdev->dev, PTR_ERR(rdev), "failed to register %s regulator\n", desc->name); /* * Regulator register gets the regulator constraints and * applies them (set_machine_constraints). This should have * turned the control register(s) to correct values and we * can now switch the control from PMIC state machine to the * register interface * * At poweroff transition PMIC HW disables EN bit for * regulators but leaves SEL bit untouched. So if state * transition from POWEROFF is done to SNVS - then all power * rails controlled by SW (having SEL bit set) stay disabled * as EN is cleared. This will result boot failure if any * crucial systems are powered by these rails. We don't * enable SW control for crucial regulators if snvs state is * used */ if (!no_enable_control && (!use_snvs || !rdev->constraints->always_on || !rdev->constraints->boot_on)) { err = regmap_update_bits(regmap, r->init.reg, r->init.mask, r->init.val); if (err) return dev_err_probe(&pdev->dev, err, "Failed to take control for (%s)\n", desc->name); } for (j = 0; j < r->additional_init_amnt; j++) { err = regmap_update_bits(regmap, r->additional_inits[j].reg, r->additional_inits[j].mask, r->additional_inits[j].val); if (err) return dev_err_probe(&pdev->dev, err, "Buck (%s) initialization failed\n", desc->name); } } return err; } static const struct platform_device_id bd718x7_pmic_id[] = { { "bd71837-pmic", ROHM_CHIP_TYPE_BD71837 }, { "bd71847-pmic", ROHM_CHIP_TYPE_BD71847 }, { }, }; MODULE_DEVICE_TABLE(platform, bd718x7_pmic_id); static struct platform_driver bd718xx_regulator = { .driver = { .name = "bd718xx-pmic", }, .probe = bd718xx_probe, .id_table = bd718x7_pmic_id, }; module_platform_driver(bd718xx_regulator); MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>"); MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:bd718xx-pmic");
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