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linux-next/drivers/regulator/palmas-regulator.c
Douglas Anderson 259b93b21a
regulator: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in 4.14 
Probing of regulators can be a slow operation and can contribute to
slower boot times. This is especially true if a regulator is turned on
at probe time (with regulator-boot-on or regulator-always-on) and the
regulator requires delays (off-on-time, ramp time, etc).

While the overall kernel is not ready to switch to async probe by
default, as per the discussion on the mailing lists [1] it is believed
that the regulator subsystem is in good shape and we can move
regulator drivers over wholesale. There is no way to just magically
opt in all regulators (regulators are just normal drivers like
platform_driver), so we set PROBE_PREFER_ASYNCHRONOUS for all
regulators found in 'drivers/regulator' individually.

Given the number of drivers touched and the impossibility to test this
ahead of time, it wouldn't be shocking at all if this caused a
regression for someone. If there is a regression caused by this patch,
it's likely to be one of the cases talked about in [1]. As a "quick
fix", drivers involved in the regression could be fixed by changing
them to PROBE_FORCE_SYNCHRONOUS. That being said, the correct fix
would be to directly fix the problem that caused the issue with async
probe.

The approach here follows a similar approach that was used for the mmc
subsystem several years ago [2]. In fact, I ran nearly the same python
script to auto-generate the changes. The only thing I changed was to
search for "i2c_driver", "spmi_driver", and "spi_driver" in addition
to "platform_driver".

[1] https://lore.kernel.org/r/06db017f-e985-4434-8d1d-02ca2100cca0@sirena.org.uk
[2] https://lore.kernel.org/r/20200903232441.2694866-1-dianders@chromium.org/

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20230316125351.1.I2a4677392a38db5758dee0788b2cea5872562a82@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-03-20 13:11:25 +00:00

1692 lines
44 KiB
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Regulator part of Palmas PMIC Chips
*
* Copyright 2011-2013 Texas Instruments Inc.
*
* Author: Graeme Gregory <gg@slimlogic.co.uk>
* Author: Ian Lartey <ian@slimlogic.co.uk>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include <linux/mfd/palmas.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/regulator/of_regulator.h>
static const struct linear_range smps_low_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0),
REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000),
REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0),
};
static const struct linear_range smps_high_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0),
REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000),
REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0),
};
static struct palmas_regs_info palmas_generic_regs_info[] = {
{
.name = "SMPS12",
.sname = "smps1-in",
.vsel_addr = PALMAS_SMPS12_VOLTAGE,
.ctrl_addr = PALMAS_SMPS12_CTRL,
.tstep_addr = PALMAS_SMPS12_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
},
{
.name = "SMPS123",
.sname = "smps1-in",
.vsel_addr = PALMAS_SMPS12_VOLTAGE,
.ctrl_addr = PALMAS_SMPS12_CTRL,
.tstep_addr = PALMAS_SMPS12_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
},
{
.name = "SMPS3",
.sname = "smps3-in",
.vsel_addr = PALMAS_SMPS3_VOLTAGE,
.ctrl_addr = PALMAS_SMPS3_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3,
},
{
.name = "SMPS45",
.sname = "smps4-in",
.vsel_addr = PALMAS_SMPS45_VOLTAGE,
.ctrl_addr = PALMAS_SMPS45_CTRL,
.tstep_addr = PALMAS_SMPS45_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
},
{
.name = "SMPS457",
.sname = "smps4-in",
.vsel_addr = PALMAS_SMPS45_VOLTAGE,
.ctrl_addr = PALMAS_SMPS45_CTRL,
.tstep_addr = PALMAS_SMPS45_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
},
{
.name = "SMPS6",
.sname = "smps6-in",
.vsel_addr = PALMAS_SMPS6_VOLTAGE,
.ctrl_addr = PALMAS_SMPS6_CTRL,
.tstep_addr = PALMAS_SMPS6_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6,
},
{
.name = "SMPS7",
.sname = "smps7-in",
.vsel_addr = PALMAS_SMPS7_VOLTAGE,
.ctrl_addr = PALMAS_SMPS7_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7,
},
{
.name = "SMPS8",
.sname = "smps8-in",
.vsel_addr = PALMAS_SMPS8_VOLTAGE,
.ctrl_addr = PALMAS_SMPS8_CTRL,
.tstep_addr = PALMAS_SMPS8_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8,
},
{
.name = "SMPS9",
.sname = "smps9-in",
.vsel_addr = PALMAS_SMPS9_VOLTAGE,
.ctrl_addr = PALMAS_SMPS9_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9,
},
{
.name = "SMPS10_OUT2",
.sname = "smps10-in",
.ctrl_addr = PALMAS_SMPS10_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
},
{
.name = "SMPS10_OUT1",
.sname = "smps10-out2",
.ctrl_addr = PALMAS_SMPS10_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
},
{
.name = "LDO1",
.sname = "ldo1-in",
.vsel_addr = PALMAS_LDO1_VOLTAGE,
.ctrl_addr = PALMAS_LDO1_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1,
},
{
.name = "LDO2",
.sname = "ldo2-in",
.vsel_addr = PALMAS_LDO2_VOLTAGE,
.ctrl_addr = PALMAS_LDO2_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2,
},
{
.name = "LDO3",
.sname = "ldo3-in",
.vsel_addr = PALMAS_LDO3_VOLTAGE,
.ctrl_addr = PALMAS_LDO3_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3,
},
{
.name = "LDO4",
.sname = "ldo4-in",
.vsel_addr = PALMAS_LDO4_VOLTAGE,
.ctrl_addr = PALMAS_LDO4_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4,
},
{
.name = "LDO5",
.sname = "ldo5-in",
.vsel_addr = PALMAS_LDO5_VOLTAGE,
.ctrl_addr = PALMAS_LDO5_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5,
},
{
.name = "LDO6",
.sname = "ldo6-in",
.vsel_addr = PALMAS_LDO6_VOLTAGE,
.ctrl_addr = PALMAS_LDO6_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6,
},
{
.name = "LDO7",
.sname = "ldo7-in",
.vsel_addr = PALMAS_LDO7_VOLTAGE,
.ctrl_addr = PALMAS_LDO7_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7,
},
{
.name = "LDO8",
.sname = "ldo8-in",
.vsel_addr = PALMAS_LDO8_VOLTAGE,
.ctrl_addr = PALMAS_LDO8_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8,
},
{
.name = "LDO9",
.sname = "ldo9-in",
.vsel_addr = PALMAS_LDO9_VOLTAGE,
.ctrl_addr = PALMAS_LDO9_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9,
},
{
.name = "LDOLN",
.sname = "ldoln-in",
.vsel_addr = PALMAS_LDOLN_VOLTAGE,
.ctrl_addr = PALMAS_LDOLN_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN,
},
{
.name = "LDOUSB",
.sname = "ldousb-in",
.vsel_addr = PALMAS_LDOUSB_VOLTAGE,
.ctrl_addr = PALMAS_LDOUSB_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB,
},
{
.name = "REGEN1",
.ctrl_addr = PALMAS_REGEN1_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1,
},
{
.name = "REGEN2",
.ctrl_addr = PALMAS_REGEN2_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2,
},
{
.name = "REGEN3",
.ctrl_addr = PALMAS_REGEN3_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3,
},
{
.name = "SYSEN1",
.ctrl_addr = PALMAS_SYSEN1_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1,
},
{
.name = "SYSEN2",
.ctrl_addr = PALMAS_SYSEN2_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2,
},
};
static struct palmas_regs_info tps65917_regs_info[] = {
{
.name = "SMPS1",
.sname = "smps1-in",
.vsel_addr = TPS65917_SMPS1_VOLTAGE,
.ctrl_addr = TPS65917_SMPS1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS1,
},
{
.name = "SMPS2",
.sname = "smps2-in",
.vsel_addr = TPS65917_SMPS2_VOLTAGE,
.ctrl_addr = TPS65917_SMPS2_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS2,
},
{
.name = "SMPS3",
.sname = "smps3-in",
.vsel_addr = TPS65917_SMPS3_VOLTAGE,
.ctrl_addr = TPS65917_SMPS3_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS3,
},
{
.name = "SMPS4",
.sname = "smps4-in",
.vsel_addr = TPS65917_SMPS4_VOLTAGE,
.ctrl_addr = TPS65917_SMPS4_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS4,
},
{
.name = "SMPS5",
.sname = "smps5-in",
.vsel_addr = TPS65917_SMPS5_VOLTAGE,
.ctrl_addr = TPS65917_SMPS5_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS5,
},
{
.name = "SMPS12",
.sname = "smps1-in",
.vsel_addr = TPS65917_SMPS1_VOLTAGE,
.ctrl_addr = TPS65917_SMPS1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS12,
},
{
.name = "LDO1",
.sname = "ldo1-in",
.vsel_addr = TPS65917_LDO1_VOLTAGE,
.ctrl_addr = TPS65917_LDO1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1,
},
{
.name = "LDO2",
.sname = "ldo2-in",
.vsel_addr = TPS65917_LDO2_VOLTAGE,
.ctrl_addr = TPS65917_LDO2_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2,
},
{
.name = "LDO3",
.sname = "ldo3-in",
.vsel_addr = TPS65917_LDO3_VOLTAGE,
.ctrl_addr = TPS65917_LDO3_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3,
},
{
.name = "LDO4",
.sname = "ldo4-in",
.vsel_addr = TPS65917_LDO4_VOLTAGE,
.ctrl_addr = TPS65917_LDO4_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4,
},
{
.name = "LDO5",
.sname = "ldo5-in",
.vsel_addr = TPS65917_LDO5_VOLTAGE,
.ctrl_addr = TPS65917_LDO5_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5,
},
{
.name = "REGEN1",
.ctrl_addr = TPS65917_REGEN1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1,
},
{
.name = "REGEN2",
.ctrl_addr = TPS65917_REGEN2_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2,
},
{
.name = "REGEN3",
.ctrl_addr = TPS65917_REGEN3_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3,
},
};
#define EXTERNAL_REQUESTOR(_id, _offset, _pos) \
[PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \
.id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \
.reg_offset = _offset, \
.bit_pos = _pos, \
}
static struct palmas_sleep_requestor_info palma_sleep_req_info[] = {
EXTERNAL_REQUESTOR(REGEN1, 0, 0),
EXTERNAL_REQUESTOR(REGEN2, 0, 1),
EXTERNAL_REQUESTOR(SYSEN1, 0, 2),
EXTERNAL_REQUESTOR(SYSEN2, 0, 3),
EXTERNAL_REQUESTOR(CLK32KG, 0, 4),
EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5),
EXTERNAL_REQUESTOR(REGEN3, 0, 6),
EXTERNAL_REQUESTOR(SMPS12, 1, 0),
EXTERNAL_REQUESTOR(SMPS3, 1, 1),
EXTERNAL_REQUESTOR(SMPS45, 1, 2),
EXTERNAL_REQUESTOR(SMPS6, 1, 3),
EXTERNAL_REQUESTOR(SMPS7, 1, 4),
EXTERNAL_REQUESTOR(SMPS8, 1, 5),
EXTERNAL_REQUESTOR(SMPS9, 1, 6),
EXTERNAL_REQUESTOR(SMPS10, 1, 7),
EXTERNAL_REQUESTOR(LDO1, 2, 0),
EXTERNAL_REQUESTOR(LDO2, 2, 1),
EXTERNAL_REQUESTOR(LDO3, 2, 2),
EXTERNAL_REQUESTOR(LDO4, 2, 3),
EXTERNAL_REQUESTOR(LDO5, 2, 4),
EXTERNAL_REQUESTOR(LDO6, 2, 5),
EXTERNAL_REQUESTOR(LDO7, 2, 6),
EXTERNAL_REQUESTOR(LDO8, 2, 7),
EXTERNAL_REQUESTOR(LDO9, 3, 0),
EXTERNAL_REQUESTOR(LDOLN, 3, 1),
EXTERNAL_REQUESTOR(LDOUSB, 3, 2),
};
#define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \
[TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \
.id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \
.reg_offset = _offset, \
.bit_pos = _pos, \
}
static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = {
EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0),
EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1),
EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6),
EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0),
EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1),
EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2),
EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3),
EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4),
EXTERNAL_REQUESTOR_TPS65917(SMPS12, 1, 5),
EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0),
EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1),
EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2),
EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3),
EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4),
};
static const unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500};
#define SMPS_CTRL_MODE_OFF 0x00
#define SMPS_CTRL_MODE_ON 0x01
#define SMPS_CTRL_MODE_ECO 0x02
#define SMPS_CTRL_MODE_PWM 0x03
#define PALMAS_SMPS_NUM_VOLTAGES 122
#define PALMAS_SMPS10_NUM_VOLTAGES 2
#define PALMAS_LDO_NUM_VOLTAGES 50
#define SMPS10_VSEL (1<<3)
#define SMPS10_BOOST_EN (1<<2)
#define SMPS10_BYPASS_EN (1<<1)
#define SMPS10_SWITCH_EN (1<<0)
#define REGULATOR_SLAVE 0
static int palmas_smps_read(struct palmas *palmas, unsigned int reg,
unsigned int *dest)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
}
static int palmas_smps_write(struct palmas *palmas, unsigned int reg,
unsigned int value)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
}
static int palmas_ldo_read(struct palmas *palmas, unsigned int reg,
unsigned int *dest)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
}
static int palmas_ldo_write(struct palmas *palmas, unsigned int reg,
unsigned int value)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
}
static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode)
{
int id = rdev_get_id(dev);
int ret;
struct palmas_pmic *pmic = rdev_get_drvdata(dev);
struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int reg;
bool rail_enable = true;
ret = palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, &reg);
if (ret)
return ret;
reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
if (reg == SMPS_CTRL_MODE_OFF)
rail_enable = false;
switch (mode) {
case REGULATOR_MODE_NORMAL:
reg |= SMPS_CTRL_MODE_ON;
break;
case REGULATOR_MODE_IDLE:
reg |= SMPS_CTRL_MODE_ECO;
break;
case REGULATOR_MODE_FAST:
reg |= SMPS_CTRL_MODE_PWM;
break;
default:
return -EINVAL;
}
pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
if (rail_enable)
palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
/* Switch the enable value to ensure this is used for enable */
pmic->desc[id].enable_val = pmic->current_reg_mode[id];
return 0;
}
static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
{
struct palmas_pmic *pmic = rdev_get_drvdata(dev);
int id = rdev_get_id(dev);
unsigned int reg;
reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
switch (reg) {
case SMPS_CTRL_MODE_ON:
return REGULATOR_MODE_NORMAL;
case SMPS_CTRL_MODE_ECO:
return REGULATOR_MODE_IDLE;
case SMPS_CTRL_MODE_PWM:
return REGULATOR_MODE_FAST;
}
return 0;
}
static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
int ramp_delay)
{
int id = rdev_get_id(rdev);
struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int reg = 0;
int ret;
/* SMPS3 and SMPS7 do not have tstep_addr setting */
switch (id) {
case PALMAS_REG_SMPS3:
case PALMAS_REG_SMPS7:
return 0;
}
if (ramp_delay <= 0)
reg = 0;
else if (ramp_delay <= 2500)
reg = 3;
else if (ramp_delay <= 5000)
reg = 2;
else
reg = 1;
ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
if (ret < 0) {
dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
return ret;
}
pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
return ret;
}
static const struct regulator_ops palmas_ops_smps = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = palmas_smps_set_ramp_delay,
};
static const struct regulator_ops palmas_ops_ext_control_smps = {
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = palmas_smps_set_ramp_delay,
};
static const struct regulator_ops palmas_ops_smps10 = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static const struct regulator_ops tps65917_ops_smps = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops tps65917_ops_ext_control_smps = {
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
};
static int palmas_is_enabled_ldo(struct regulator_dev *dev)
{
int id = rdev_get_id(dev);
struct palmas_pmic *pmic = rdev_get_drvdata(dev);
struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int reg;
palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, &reg);
reg &= PALMAS_LDO1_CTRL_STATUS;
return !!(reg);
}
static const struct regulator_ops palmas_ops_ldo = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_ops palmas_ops_ldo9 = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static const struct regulator_ops palmas_ops_ext_control_ldo = {
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_ops palmas_ops_extreg = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
static const struct regulator_ops palmas_ops_ext_control_extreg = {
};
static const struct regulator_ops tps65917_ops_ldo = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops tps65917_ops_ldo_1_2 = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static int palmas_regulator_config_external(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
int ret;
ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
reg_init->roof_floor, true);
if (ret < 0)
dev_err(palmas->dev,
"Ext control config for regulator %d failed %d\n",
id, ret);
return ret;
}
/*
* setup the hardware based sleep configuration of the SMPS/LDO regulators
* from the platform data. This is different to the software based control
* supported by the regulator framework as it is controlled by toggling
* pins on the PMIC such as PREQ, SYSEN, ...
*/
static int palmas_smps_init(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
unsigned int reg;
int ret;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int addr = rinfo->ctrl_addr;
ret = palmas_smps_read(palmas, addr, &reg);
if (ret)
return ret;
switch (id) {
case PALMAS_REG_SMPS10_OUT1:
case PALMAS_REG_SMPS10_OUT2:
reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
if (reg_init->mode_sleep)
reg |= reg_init->mode_sleep <<
PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
break;
default:
if (reg_init->warm_reset)
reg |= PALMAS_SMPS12_CTRL_WR_S;
else
reg &= ~PALMAS_SMPS12_CTRL_WR_S;
if (reg_init->roof_floor)
reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
else
reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
if (reg_init->mode_sleep)
reg |= reg_init->mode_sleep <<
PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
}
ret = palmas_smps_write(palmas, addr, reg);
if (ret)
return ret;
if (rinfo->vsel_addr && reg_init->vsel) {
reg = reg_init->vsel;
ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
if (ret)
return ret;
}
if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
(id != PALMAS_REG_SMPS10_OUT2)) {
/* Enable externally controlled regulator */
ret = palmas_smps_read(palmas, addr, &reg);
if (ret < 0)
return ret;
if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
reg |= SMPS_CTRL_MODE_ON;
ret = palmas_smps_write(palmas, addr, reg);
if (ret < 0)
return ret;
}
return palmas_regulator_config_external(palmas, id, reg_init);
}
return 0;
}
static int palmas_ldo_init(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
unsigned int reg;
unsigned int addr;
int ret;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
addr = rinfo->ctrl_addr;
ret = palmas_ldo_read(palmas, addr, &reg);
if (ret)
return ret;
if (reg_init->warm_reset)
reg |= PALMAS_LDO1_CTRL_WR_S;
else
reg &= ~PALMAS_LDO1_CTRL_WR_S;
if (reg_init->mode_sleep)
reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
else
reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
ret = palmas_ldo_write(palmas, addr, reg);
if (ret)
return ret;
if (reg_init->roof_floor) {
/* Enable externally controlled regulator */
ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
PALMAS_LDO1_CTRL_MODE_ACTIVE);
if (ret < 0) {
dev_err(palmas->dev,
"LDO Register 0x%02x update failed %d\n",
addr, ret);
return ret;
}
return palmas_regulator_config_external(palmas, id, reg_init);
}
return 0;
}
static int palmas_extreg_init(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
unsigned int addr;
int ret;
unsigned int val = 0;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
addr = rinfo->ctrl_addr;
if (reg_init->mode_sleep)
val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
if (ret < 0) {
dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
addr, ret);
return ret;
}
if (reg_init->roof_floor) {
/* Enable externally controlled regulator */
ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
PALMAS_REGEN1_CTRL_MODE_ACTIVE);
if (ret < 0) {
dev_err(palmas->dev,
"Resource Register 0x%02x update failed %d\n",
addr, ret);
return ret;
}
return palmas_regulator_config_external(palmas, id, reg_init);
}
return 0;
}
static void palmas_enable_ldo8_track(struct palmas *palmas)
{
unsigned int reg;
unsigned int addr;
int ret;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo;
rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
addr = rinfo->ctrl_addr;
ret = palmas_ldo_read(palmas, addr, &reg);
if (ret) {
dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
return;
}
reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
ret = palmas_ldo_write(palmas, addr, reg);
if (ret < 0) {
dev_err(palmas->dev, "Error in enabling tracking mode\n");
return;
}
/*
* When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
* output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
* and can be set from 0.45 to 1.65 V.
*/
addr = rinfo->vsel_addr;
ret = palmas_ldo_read(palmas, addr, &reg);
if (ret) {
dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
return;
}
reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
ret = palmas_ldo_write(palmas, addr, reg);
if (ret < 0)
dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
return;
}
static int palmas_ldo_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
if (pdata && pdata->reg_init[id])
reg_init = pdata->reg_init[id];
else
reg_init = NULL;
rinfo = &ddata->palmas_regs_info[id];
/* Miss out regulators which are not available due
* to alternate functions.
*/
/* Register the regulators */
desc = &pmic->desc[id];
desc->name = rinfo->name;
desc->id = id;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (id < PALMAS_REG_REGEN1) {
desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_ldo;
else
desc->ops = &palmas_ops_ldo;
desc->min_uV = 900000;
desc->uV_step = 50000;
desc->linear_min_sel = 1;
desc->enable_time = 500;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
/* Check if LDO8 is in tracking mode or not */
if (pdata && (id == PALMAS_REG_LDO8) &&
pdata->enable_ldo8_tracking) {
palmas_enable_ldo8_track(pmic->palmas);
desc->min_uV = 450000;
desc->uV_step = 25000;
}
/* LOD6 in vibrator mode will have enable time 2000us */
if (pdata && pdata->ldo6_vibrator &&
(id == PALMAS_REG_LDO6))
desc->enable_time = 2000;
if (id == PALMAS_REG_LDO9) {
desc->ops = &palmas_ops_ldo9;
desc->bypass_reg = desc->enable_reg;
desc->bypass_val_on =
PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
desc->bypass_mask =
PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
}
} else {
if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
continue;
desc->n_voltages = 1;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_extreg;
else
desc->ops = &palmas_ops_extreg;
desc->enable_reg =
PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
}
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
/* Initialise sleep/init values from platform data */
if (pdata) {
reg_init = pdata->reg_init[id];
if (reg_init) {
if (id <= ddata->ldo_end)
ret = palmas_ldo_init(pmic->palmas, id,
reg_init);
else
ret = palmas_extreg_init(pmic->palmas,
id, reg_init);
if (ret)
return ret;
}
}
}
return 0;
}
static int tps65917_ldo_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
if (pdata && pdata->reg_init[id])
reg_init = pdata->reg_init[id];
else
reg_init = NULL;
/* Miss out regulators which are not available due
* to alternate functions.
*/
rinfo = &ddata->palmas_regs_info[id];
/* Register the regulators */
desc = &pmic->desc[id];
desc->name = rinfo->name;
desc->id = id;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (id < TPS65917_REG_REGEN1) {
desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_ldo;
else
desc->ops = &tps65917_ops_ldo;
desc->min_uV = 900000;
desc->uV_step = 50000;
desc->linear_min_sel = 1;
desc->enable_time = 500;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
/*
* To be confirmed. Discussion on going with PMIC Team.
* It is of the order of ~60mV/uS.
*/
desc->ramp_delay = 2500;
if (id == TPS65917_REG_LDO1 ||
id == TPS65917_REG_LDO2) {
desc->ops = &tps65917_ops_ldo_1_2;
desc->bypass_reg = desc->enable_reg;
desc->bypass_val_on =
TPS65917_LDO1_CTRL_BYPASS_EN;
desc->bypass_mask =
TPS65917_LDO1_CTRL_BYPASS_EN;
}
} else {
desc->n_voltages = 1;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_extreg;
else
desc->ops = &palmas_ops_extreg;
desc->enable_reg =
PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
}
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
/* Initialise sleep/init values from platform data */
if (pdata) {
reg_init = pdata->reg_init[id];
if (reg_init) {
if (id < TPS65917_REG_REGEN1)
ret = palmas_ldo_init(pmic->palmas,
id, reg_init);
else
ret = palmas_extreg_init(pmic->palmas,
id, reg_init);
if (ret)
return ret;
}
}
}
return 0;
}
static int palmas_smps_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
unsigned int addr, reg;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
bool ramp_delay_support = false;
/*
* Miss out regulators which are not available due
* to slaving configurations.
*/
switch (id) {
case PALMAS_REG_SMPS12:
case PALMAS_REG_SMPS3:
if (pmic->smps123)
continue;
if (id == PALMAS_REG_SMPS12)
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS123:
if (!pmic->smps123)
continue;
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS45:
case PALMAS_REG_SMPS7:
if (pmic->smps457)
continue;
if (id == PALMAS_REG_SMPS45)
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS457:
if (!pmic->smps457)
continue;
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS10_OUT1:
case PALMAS_REG_SMPS10_OUT2:
if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
continue;
}
rinfo = &ddata->palmas_regs_info[id];
desc = &pmic->desc[id];
if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
ramp_delay_support = true;
if (ramp_delay_support) {
addr = rinfo->tstep_addr;
ret = palmas_smps_read(pmic->palmas, addr, &reg);
if (ret < 0) {
dev_err(pmic->dev,
"reading TSTEP reg failed: %d\n", ret);
return ret;
}
desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
pmic->ramp_delay[id] = desc->ramp_delay;
}
/* Initialise sleep/init values from platform data */
if (pdata && pdata->reg_init[id]) {
reg_init = pdata->reg_init[id];
ret = palmas_smps_init(pmic->palmas, id, reg_init);
if (ret)
return ret;
} else {
reg_init = NULL;
}
/* Register the regulators */
desc->name = rinfo->name;
desc->id = id;
switch (id) {
case PALMAS_REG_SMPS10_OUT1:
case PALMAS_REG_SMPS10_OUT2:
desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
desc->ops = &palmas_ops_smps10;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
desc->vsel_mask = SMPS10_VSEL;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
if (id == PALMAS_REG_SMPS10_OUT1)
desc->enable_mask = SMPS10_SWITCH_EN;
else
desc->enable_mask = SMPS10_BOOST_EN;
desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
desc->bypass_val_on = SMPS10_BYPASS_EN;
desc->bypass_mask = SMPS10_BYPASS_EN;
desc->min_uV = 3750000;
desc->uV_step = 1250000;
break;
default:
/*
* Read and store the RANGE bit for later use
* This must be done before regulator is probed,
* otherwise we error in probe with unsupportable
* ranges. Read the current smps mode for later use.
*/
addr = rinfo->vsel_addr;
desc->n_linear_ranges = 3;
ret = palmas_smps_read(pmic->palmas, addr, &reg);
if (ret)
return ret;
if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
pmic->range[id] = 1;
if (pmic->range[id])
desc->linear_ranges = smps_high_ranges;
else
desc->linear_ranges = smps_low_ranges;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_smps;
else
desc->ops = &palmas_ops_smps;
desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
/* Read the smps mode for later use. */
addr = rinfo->ctrl_addr;
ret = palmas_smps_read(pmic->palmas, addr, &reg);
if (ret)
return ret;
pmic->current_reg_mode[id] = reg &
PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
/* set_mode overrides this value */
desc->enable_val = SMPS_CTRL_MODE_ON;
}
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
}
return 0;
}
static int tps65917_smps_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
unsigned int addr, reg;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
/*
* Miss out regulators which are not available due
* to slaving configurations.
*/
desc = &pmic->desc[id];
desc->n_linear_ranges = 3;
if ((id == TPS65917_REG_SMPS2 || id == TPS65917_REG_SMPS1) &&
pmic->smps12)
continue;
/* Initialise sleep/init values from platform data */
if (pdata && pdata->reg_init[id]) {
reg_init = pdata->reg_init[id];
ret = palmas_smps_init(pmic->palmas, id, reg_init);
if (ret)
return ret;
} else {
reg_init = NULL;
}
rinfo = &ddata->palmas_regs_info[id];
/* Register the regulators */
desc->name = rinfo->name;
desc->id = id;
/*
* Read and store the RANGE bit for later use
* This must be done before regulator is probed,
* otherwise we error in probe with unsupportable
* ranges. Read the current smps mode for later use.
*/
addr = rinfo->vsel_addr;
ret = palmas_smps_read(pmic->palmas, addr, &reg);
if (ret)
return ret;
if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
pmic->range[id] = 1;
if (pmic->range[id])
desc->linear_ranges = smps_high_ranges;
else
desc->linear_ranges = smps_low_ranges;
if (reg_init && reg_init->roof_floor)
desc->ops = &tps65917_ops_ext_control_smps;
else
desc->ops = &tps65917_ops_smps;
desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
desc->ramp_delay = 2500;
/* Read the smps mode for later use. */
addr = rinfo->ctrl_addr;
ret = palmas_smps_read(pmic->palmas, addr, &reg);
if (ret)
return ret;
pmic->current_reg_mode[id] = reg &
PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
/* set_mode overrides this value */
desc->enable_val = SMPS_CTRL_MODE_ON;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct of_regulator_match palmas_matches[] = {
{ .name = "smps12", },
{ .name = "smps123", },
{ .name = "smps3", },
{ .name = "smps45", },
{ .name = "smps457", },
{ .name = "smps6", },
{ .name = "smps7", },
{ .name = "smps8", },
{ .name = "smps9", },
{ .name = "smps10_out2", },
{ .name = "smps10_out1", },
{ .name = "ldo1", },
{ .name = "ldo2", },
{ .name = "ldo3", },
{ .name = "ldo4", },
{ .name = "ldo5", },
{ .name = "ldo6", },
{ .name = "ldo7", },
{ .name = "ldo8", },
{ .name = "ldo9", },
{ .name = "ldoln", },
{ .name = "ldousb", },
{ .name = "regen1", },
{ .name = "regen2", },
{ .name = "regen3", },
{ .name = "sysen1", },
{ .name = "sysen2", },
};
static struct of_regulator_match tps65917_matches[] = {
{ .name = "smps1", },
{ .name = "smps2", },
{ .name = "smps3", },
{ .name = "smps4", },
{ .name = "smps5", },
{ .name = "smps12",},
{ .name = "ldo1", },
{ .name = "ldo2", },
{ .name = "ldo3", },
{ .name = "ldo4", },
{ .name = "ldo5", },
{ .name = "regen1", },
{ .name = "regen2", },
{ .name = "regen3", },
{ .name = "sysen1", },
{ .name = "sysen2", },
};
static struct palmas_pmic_driver_data palmas_ddata = {
.smps_start = PALMAS_REG_SMPS12,
.smps_end = PALMAS_REG_SMPS10_OUT1,
.ldo_begin = PALMAS_REG_LDO1,
.ldo_end = PALMAS_REG_LDOUSB,
.max_reg = PALMAS_NUM_REGS,
.has_regen3 = true,
.palmas_regs_info = palmas_generic_regs_info,
.palmas_matches = palmas_matches,
.sleep_req_info = palma_sleep_req_info,
.smps_register = palmas_smps_registration,
.ldo_register = palmas_ldo_registration,
};
static struct palmas_pmic_driver_data tps65917_ddata = {
.smps_start = TPS65917_REG_SMPS1,
.smps_end = TPS65917_REG_SMPS12,
.ldo_begin = TPS65917_REG_LDO1,
.ldo_end = TPS65917_REG_LDO5,
.max_reg = TPS65917_NUM_REGS,
.has_regen3 = true,
.palmas_regs_info = tps65917_regs_info,
.palmas_matches = tps65917_matches,
.sleep_req_info = tps65917_sleep_req_info,
.smps_register = tps65917_smps_registration,
.ldo_register = tps65917_ldo_registration,
};
static int palmas_dt_to_pdata(struct device *dev,
struct device_node *node,
struct palmas_pmic_platform_data *pdata,
struct palmas_pmic_driver_data *ddata)
{
struct device_node *regulators;
u32 prop;
int idx, ret;
regulators = of_get_child_by_name(node, "regulators");
if (!regulators) {
dev_info(dev, "regulator node not found\n");
return 0;
}
ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
ddata->max_reg);
of_node_put(regulators);
if (ret < 0) {
dev_err(dev, "Error parsing regulator init data: %d\n", ret);
return 0;
}
for (idx = 0; idx < ddata->max_reg; idx++) {
struct of_regulator_match *match;
struct palmas_reg_init *rinit;
struct device_node *np;
match = &ddata->palmas_matches[idx];
np = match->of_node;
if (!match->init_data || !np)
continue;
rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL);
if (!rinit)
return -ENOMEM;
pdata->reg_data[idx] = match->init_data;
pdata->reg_init[idx] = rinit;
rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset");
ret = of_property_read_u32(np, "ti,roof-floor", &prop);
/* EINVAL: Property not found */
if (ret != -EINVAL) {
int econtrol;
/* use default value, when no value is specified */
econtrol = PALMAS_EXT_CONTROL_NSLEEP;
if (!ret) {
switch (prop) {
case 1:
econtrol = PALMAS_EXT_CONTROL_ENABLE1;
break;
case 2:
econtrol = PALMAS_EXT_CONTROL_ENABLE2;
break;
case 3:
econtrol = PALMAS_EXT_CONTROL_NSLEEP;
break;
default:
WARN_ON(1);
dev_warn(dev,
"%s: Invalid roof-floor option: %u\n",
match->name, prop);
break;
}
}
rinit->roof_floor = econtrol;
}
ret = of_property_read_u32(np, "ti,mode-sleep", &prop);
if (!ret)
rinit->mode_sleep = prop;
ret = of_property_read_bool(np, "ti,smps-range");
if (ret)
rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE;
if (idx == PALMAS_REG_LDO8)
pdata->enable_ldo8_tracking = of_property_read_bool(
np, "ti,enable-ldo8-tracking");
}
pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
return 0;
}
static const struct of_device_id of_palmas_match_tbl[] = {
{
.compatible = "ti,palmas-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,twl6035-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,twl6036-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,twl6037-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps65913-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps65914-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps80036-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps659038-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps65917-pmic",
.data = &tps65917_ddata,
},
{ /* end */ }
};
static int palmas_regulators_probe(struct platform_device *pdev)
{
struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct device_node *node = pdev->dev.of_node;
struct palmas_pmic_driver_data *driver_data;
struct regulator_config config = { };
struct palmas_pmic *pmic;
const char *pdev_name;
const struct of_device_id *match;
int ret = 0;
unsigned int reg;
match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
if (!match)
return -ENODATA;
driver_data = (struct palmas_pmic_driver_data *)match->data;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
TPS659038_REGEN2_CTRL;
palmas_ddata.has_regen3 = false;
}
pmic->dev = &pdev->dev;
pmic->palmas = palmas;
palmas->pmic = pmic;
platform_set_drvdata(pdev, pmic);
pmic->palmas->pmic_ddata = driver_data;
ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
if (ret)
return ret;
ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, &reg);
if (ret)
return ret;
if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) {
pmic->smps123 = 1;
pmic->smps12 = 1;
}
if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
pmic->smps457 = 1;
config.regmap = palmas->regmap[REGULATOR_SLAVE];
config.dev = &pdev->dev;
config.driver_data = pmic;
pdev_name = pdev->name;
ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
config);
if (ret)
return ret;
ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
config);
return ret;
}
static struct platform_driver palmas_driver = {
.driver = {
.name = "palmas-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_palmas_match_tbl,
},
.probe = palmas_regulators_probe,
};
static int __init palmas_init(void)
{
return platform_driver_register(&palmas_driver);
}
subsys_initcall(palmas_init);
static void __exit palmas_exit(void)
{
platform_driver_unregister(&palmas_driver);
}
module_exit(palmas_exit);
MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
MODULE_DESCRIPTION("Palmas voltage regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:palmas-pmic");
MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
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