mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1857 lines
54 KiB
1857 lines
54 KiB
// 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; |
|
|
|
pr_info("Looking at node '%s'\n", desc->of_match); |
|
|
|
/* 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"); |
|
err = -EINVAL; |
|
goto err; |
|
} |
|
|
|
/* Register LOCK release */ |
|
err = regmap_update_bits(regmap, BD718XX_REG_REGLOCK, |
|
(REGLOCK_PWRSEQ | REGLOCK_VREG), 0); |
|
if (err) { |
|
dev_err(&pdev->dev, "Failed to unlock PMIC (%d)\n", err); |
|
goto err; |
|
} else { |
|
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) { |
|
dev_err(&pdev->dev, "Failed to change reset target\n"); |
|
goto err; |
|
} else { |
|
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)) { |
|
dev_err(&pdev->dev, |
|
"failed to register %s regulator\n", |
|
desc->name); |
|
err = PTR_ERR(rdev); |
|
goto err; |
|
} |
|
|
|
/* |
|
* 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) { |
|
dev_err(&pdev->dev, |
|
"Failed to take control for (%s)\n", |
|
desc->name); |
|
goto err; |
|
} |
|
} |
|
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) { |
|
dev_err(&pdev->dev, |
|
"Buck (%s) initialization failed\n", |
|
desc->name); |
|
goto err; |
|
} |
|
} |
|
} |
|
|
|
err: |
|
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 <[email protected]>"); |
|
MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:bd718xx-pmic");
|
|
|