3c1b8438d4
There is already before a register mask in the regulator driver to allow some bits of a register to be initialized. The register value is defined in the board configuration. This patch puts a mask in the board configuration to specify which bits should actually be altered. The purpose with this patch is to avoid future mistakes when updating the allowed bits in the regulator driver. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
1030 lines
25 KiB
C
1030 lines
25 KiB
C
/*
|
|
* Copyright (C) ST-Ericsson SA 2010
|
|
*
|
|
* License Terms: GNU General Public License v2
|
|
*
|
|
* Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
|
|
* Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
|
|
*
|
|
* AB8500 peripheral regulators
|
|
*
|
|
* AB8500 supports the following regulators:
|
|
* VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/err.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mfd/abx500.h>
|
|
#include <linux/mfd/abx500/ab8500.h>
|
|
#include <linux/of.h>
|
|
#include <linux/regulator/of_regulator.h>
|
|
#include <linux/regulator/driver.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/regulator/ab8500.h>
|
|
#include <linux/slab.h>
|
|
|
|
/**
|
|
* struct ab8500_regulator_info - ab8500 regulator information
|
|
* @dev: device pointer
|
|
* @desc: regulator description
|
|
* @regulator_dev: regulator device
|
|
* @is_enabled: status of regulator (on/off)
|
|
* @load_lp_uA: maximum load in idle (low power) mode
|
|
* @update_bank: bank to control on/off
|
|
* @update_reg: register to control on/off
|
|
* @update_mask: mask to enable/disable and set mode of regulator
|
|
* @update_val: bits holding the regulator current mode
|
|
* @update_val_idle: bits to enable the regulator in idle (low power) mode
|
|
* @update_val_normal: bits to enable the regulator in normal (high power) mode
|
|
* @voltage_bank: bank to control regulator voltage
|
|
* @voltage_reg: register to control regulator voltage
|
|
* @voltage_mask: mask to control regulator voltage
|
|
* @voltage_shift: shift to control regulator voltage
|
|
* @delay: startup/set voltage delay in us
|
|
*/
|
|
struct ab8500_regulator_info {
|
|
struct device *dev;
|
|
struct regulator_desc desc;
|
|
struct regulator_dev *regulator;
|
|
bool is_enabled;
|
|
int load_lp_uA;
|
|
u8 update_bank;
|
|
u8 update_reg;
|
|
u8 update_mask;
|
|
u8 update_val;
|
|
u8 update_val_idle;
|
|
u8 update_val_normal;
|
|
u8 voltage_bank;
|
|
u8 voltage_reg;
|
|
u8 voltage_mask;
|
|
u8 voltage_shift;
|
|
unsigned int delay;
|
|
};
|
|
|
|
/* voltage tables for the vauxn/vintcore supplies */
|
|
static const unsigned int ldo_vauxn_voltages[] = {
|
|
1100000,
|
|
1200000,
|
|
1300000,
|
|
1400000,
|
|
1500000,
|
|
1800000,
|
|
1850000,
|
|
1900000,
|
|
2500000,
|
|
2650000,
|
|
2700000,
|
|
2750000,
|
|
2800000,
|
|
2900000,
|
|
3000000,
|
|
3300000,
|
|
};
|
|
|
|
static const unsigned int ldo_vaux3_voltages[] = {
|
|
1200000,
|
|
1500000,
|
|
1800000,
|
|
2100000,
|
|
2500000,
|
|
2750000,
|
|
2790000,
|
|
2910000,
|
|
};
|
|
|
|
static const unsigned int ldo_vintcore_voltages[] = {
|
|
1200000,
|
|
1225000,
|
|
1250000,
|
|
1275000,
|
|
1300000,
|
|
1325000,
|
|
1350000,
|
|
};
|
|
|
|
static int ab8500_regulator_enable(struct regulator_dev *rdev)
|
|
{
|
|
int ret;
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = abx500_mask_and_set_register_interruptible(info->dev,
|
|
info->update_bank, info->update_reg,
|
|
info->update_mask, info->update_val);
|
|
if (ret < 0)
|
|
dev_err(rdev_get_dev(rdev),
|
|
"couldn't set enable bits for regulator\n");
|
|
|
|
info->is_enabled = true;
|
|
|
|
dev_vdbg(rdev_get_dev(rdev),
|
|
"%s-enable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
|
|
info->desc.name, info->update_bank, info->update_reg,
|
|
info->update_mask, info->update_val);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ab8500_regulator_disable(struct regulator_dev *rdev)
|
|
{
|
|
int ret;
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = abx500_mask_and_set_register_interruptible(info->dev,
|
|
info->update_bank, info->update_reg,
|
|
info->update_mask, 0x0);
|
|
if (ret < 0)
|
|
dev_err(rdev_get_dev(rdev),
|
|
"couldn't set disable bits for regulator\n");
|
|
|
|
info->is_enabled = false;
|
|
|
|
dev_vdbg(rdev_get_dev(rdev),
|
|
"%s-disable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
|
|
info->desc.name, info->update_bank, info->update_reg,
|
|
info->update_mask, 0x0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static unsigned int ab8500_regulator_get_optimum_mode(
|
|
struct regulator_dev *rdev, int input_uV,
|
|
int output_uV, int load_uA)
|
|
{
|
|
unsigned int mode;
|
|
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (load_uA <= info->load_lp_uA)
|
|
mode = REGULATOR_MODE_IDLE;
|
|
else
|
|
mode = REGULATOR_MODE_NORMAL;
|
|
|
|
return mode;
|
|
}
|
|
|
|
static int ab8500_regulator_set_mode(struct regulator_dev *rdev,
|
|
unsigned int mode)
|
|
{
|
|
int ret = 0;
|
|
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (mode) {
|
|
case REGULATOR_MODE_NORMAL:
|
|
info->update_val = info->update_val_normal;
|
|
break;
|
|
case REGULATOR_MODE_IDLE:
|
|
info->update_val = info->update_val_idle;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->is_enabled) {
|
|
ret = abx500_mask_and_set_register_interruptible(info->dev,
|
|
info->update_bank, info->update_reg,
|
|
info->update_mask, info->update_val);
|
|
if (ret < 0)
|
|
dev_err(rdev_get_dev(rdev),
|
|
"couldn't set regulator mode\n");
|
|
|
|
dev_vdbg(rdev_get_dev(rdev),
|
|
"%s-set_mode (bank, reg, mask, value): "
|
|
"0x%x, 0x%x, 0x%x, 0x%x\n",
|
|
info->desc.name, info->update_bank, info->update_reg,
|
|
info->update_mask, info->update_val);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static unsigned int ab8500_regulator_get_mode(struct regulator_dev *rdev)
|
|
{
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
int ret;
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (info->update_val == info->update_val_normal)
|
|
ret = REGULATOR_MODE_NORMAL;
|
|
else if (info->update_val == info->update_val_idle)
|
|
ret = REGULATOR_MODE_IDLE;
|
|
else
|
|
ret = -EINVAL;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ab8500_regulator_is_enabled(struct regulator_dev *rdev)
|
|
{
|
|
int ret;
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
u8 regval;
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = abx500_get_register_interruptible(info->dev,
|
|
info->update_bank, info->update_reg, ®val);
|
|
if (ret < 0) {
|
|
dev_err(rdev_get_dev(rdev),
|
|
"couldn't read 0x%x register\n", info->update_reg);
|
|
return ret;
|
|
}
|
|
|
|
dev_vdbg(rdev_get_dev(rdev),
|
|
"%s-is_enabled (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
|
|
" 0x%x\n",
|
|
info->desc.name, info->update_bank, info->update_reg,
|
|
info->update_mask, regval);
|
|
|
|
if (regval & info->update_mask)
|
|
info->is_enabled = true;
|
|
else
|
|
info->is_enabled = false;
|
|
|
|
return info->is_enabled;
|
|
}
|
|
|
|
static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev)
|
|
{
|
|
int ret, val;
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
u8 regval;
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = abx500_get_register_interruptible(info->dev,
|
|
info->voltage_bank, info->voltage_reg, ®val);
|
|
if (ret < 0) {
|
|
dev_err(rdev_get_dev(rdev),
|
|
"couldn't read voltage reg for regulator\n");
|
|
return ret;
|
|
}
|
|
|
|
dev_vdbg(rdev_get_dev(rdev),
|
|
"%s-get_voltage (bank, reg, mask, shift, value): "
|
|
"0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
|
|
info->desc.name, info->voltage_bank,
|
|
info->voltage_reg, info->voltage_mask,
|
|
info->voltage_shift, regval);
|
|
|
|
val = regval & info->voltage_mask;
|
|
return val >> info->voltage_shift;
|
|
}
|
|
|
|
static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev,
|
|
unsigned selector)
|
|
{
|
|
int ret;
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
u8 regval;
|
|
|
|
if (info == NULL) {
|
|
dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* set the registers for the request */
|
|
regval = (u8)selector << info->voltage_shift;
|
|
ret = abx500_mask_and_set_register_interruptible(info->dev,
|
|
info->voltage_bank, info->voltage_reg,
|
|
info->voltage_mask, regval);
|
|
if (ret < 0)
|
|
dev_err(rdev_get_dev(rdev),
|
|
"couldn't set voltage reg for regulator\n");
|
|
|
|
dev_vdbg(rdev_get_dev(rdev),
|
|
"%s-set_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
|
|
" 0x%x\n",
|
|
info->desc.name, info->voltage_bank, info->voltage_reg,
|
|
info->voltage_mask, regval);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
|
|
unsigned int old_sel,
|
|
unsigned int new_sel)
|
|
{
|
|
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
|
|
|
|
return info->delay;
|
|
}
|
|
|
|
static struct regulator_ops ab8500_regulator_volt_mode_ops = {
|
|
.enable = ab8500_regulator_enable,
|
|
.disable = ab8500_regulator_disable,
|
|
.is_enabled = ab8500_regulator_is_enabled,
|
|
.get_optimum_mode = ab8500_regulator_get_optimum_mode,
|
|
.set_mode = ab8500_regulator_set_mode,
|
|
.get_mode = ab8500_regulator_get_mode,
|
|
.get_voltage_sel = ab8500_regulator_get_voltage_sel,
|
|
.set_voltage_sel = ab8500_regulator_set_voltage_sel,
|
|
.list_voltage = regulator_list_voltage_table,
|
|
.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
|
|
};
|
|
|
|
static struct regulator_ops ab8500_regulator_mode_ops = {
|
|
.enable = ab8500_regulator_enable,
|
|
.disable = ab8500_regulator_disable,
|
|
.is_enabled = ab8500_regulator_is_enabled,
|
|
.get_optimum_mode = ab8500_regulator_get_optimum_mode,
|
|
.set_mode = ab8500_regulator_set_mode,
|
|
.get_mode = ab8500_regulator_get_mode,
|
|
.get_voltage_sel = ab8500_regulator_get_voltage_sel,
|
|
.list_voltage = regulator_list_voltage_table,
|
|
.set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
|
|
};
|
|
|
|
static struct regulator_ops ab8500_regulator_ops = {
|
|
.enable = ab8500_regulator_enable,
|
|
.disable = ab8500_regulator_disable,
|
|
.is_enabled = ab8500_regulator_is_enabled,
|
|
.get_voltage_sel = ab8500_regulator_get_voltage_sel,
|
|
.list_voltage = regulator_list_voltage_table,
|
|
};
|
|
|
|
static struct ab8500_regulator_info
|
|
ab8500_regulator_info[AB8500_NUM_REGULATORS] = {
|
|
/*
|
|
* Variable Voltage Regulators
|
|
* name, min mV, max mV,
|
|
* update bank, reg, mask, enable val
|
|
* volt bank, reg, mask
|
|
*/
|
|
[AB8500_LDO_AUX1] = {
|
|
.desc = {
|
|
.name = "LDO-AUX1",
|
|
.ops = &ab8500_regulator_volt_mode_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_AUX1,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = ARRAY_SIZE(ldo_vauxn_voltages),
|
|
.volt_table = ldo_vauxn_voltages,
|
|
},
|
|
.load_lp_uA = 5000,
|
|
.update_bank = 0x04,
|
|
.update_reg = 0x09,
|
|
.update_mask = 0x03,
|
|
.update_val = 0x01,
|
|
.update_val_idle = 0x03,
|
|
.update_val_normal = 0x01,
|
|
.voltage_bank = 0x04,
|
|
.voltage_reg = 0x1f,
|
|
.voltage_mask = 0x0f,
|
|
},
|
|
[AB8500_LDO_AUX2] = {
|
|
.desc = {
|
|
.name = "LDO-AUX2",
|
|
.ops = &ab8500_regulator_volt_mode_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_AUX2,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = ARRAY_SIZE(ldo_vauxn_voltages),
|
|
.volt_table = ldo_vauxn_voltages,
|
|
},
|
|
.load_lp_uA = 5000,
|
|
.update_bank = 0x04,
|
|
.update_reg = 0x09,
|
|
.update_mask = 0x0c,
|
|
.update_val = 0x04,
|
|
.update_val_idle = 0x0c,
|
|
.update_val_normal = 0x04,
|
|
.voltage_bank = 0x04,
|
|
.voltage_reg = 0x20,
|
|
.voltage_mask = 0x0f,
|
|
},
|
|
[AB8500_LDO_AUX3] = {
|
|
.desc = {
|
|
.name = "LDO-AUX3",
|
|
.ops = &ab8500_regulator_volt_mode_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_AUX3,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = ARRAY_SIZE(ldo_vaux3_voltages),
|
|
.volt_table = ldo_vaux3_voltages,
|
|
},
|
|
.load_lp_uA = 5000,
|
|
.update_bank = 0x04,
|
|
.update_reg = 0x0a,
|
|
.update_mask = 0x03,
|
|
.update_val = 0x01,
|
|
.update_val_idle = 0x03,
|
|
.update_val_normal = 0x01,
|
|
.voltage_bank = 0x04,
|
|
.voltage_reg = 0x21,
|
|
.voltage_mask = 0x07,
|
|
},
|
|
[AB8500_LDO_INTCORE] = {
|
|
.desc = {
|
|
.name = "LDO-INTCORE",
|
|
.ops = &ab8500_regulator_volt_mode_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_INTCORE,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = ARRAY_SIZE(ldo_vintcore_voltages),
|
|
.volt_table = ldo_vintcore_voltages,
|
|
},
|
|
.load_lp_uA = 5000,
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x80,
|
|
.update_mask = 0x44,
|
|
.update_val = 0x04,
|
|
.update_val_idle = 0x44,
|
|
.update_val_normal = 0x04,
|
|
.voltage_bank = 0x03,
|
|
.voltage_reg = 0x80,
|
|
.voltage_mask = 0x38,
|
|
.voltage_shift = 3,
|
|
},
|
|
|
|
/*
|
|
* Fixed Voltage Regulators
|
|
* name, fixed mV,
|
|
* update bank, reg, mask, enable val
|
|
*/
|
|
[AB8500_LDO_TVOUT] = {
|
|
.desc = {
|
|
.name = "LDO-TVOUT",
|
|
.ops = &ab8500_regulator_mode_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_TVOUT,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 2000000,
|
|
.enable_time = 10000,
|
|
},
|
|
.delay = 10000,
|
|
.load_lp_uA = 1000,
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x80,
|
|
.update_mask = 0x82,
|
|
.update_val = 0x02,
|
|
.update_val_idle = 0x82,
|
|
.update_val_normal = 0x02,
|
|
},
|
|
[AB8500_LDO_USB] = {
|
|
.desc = {
|
|
.name = "LDO-USB",
|
|
.ops = &ab8500_regulator_fixed_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_USB,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 3300000,
|
|
},
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x82,
|
|
.update_mask = 0x03,
|
|
},
|
|
|
|
/*
|
|
* Regulators with fixed voltage and normal mode
|
|
*/
|
|
[AB8500_LDO_AUDIO] = {
|
|
.desc = {
|
|
.name = "LDO-AUDIO",
|
|
.ops = &ab8500_regulator_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_AUDIO,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 2000000,
|
|
},
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x83,
|
|
.update_mask = 0x02,
|
|
.update_val = 0x02,
|
|
},
|
|
[AB8500_LDO_ANAMIC1] = {
|
|
.desc = {
|
|
.name = "LDO-ANAMIC1",
|
|
.ops = &ab8500_regulator_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_ANAMIC1,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 2050000,
|
|
},
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x83,
|
|
.update_mask = 0x08,
|
|
.update_val = 0x08,
|
|
},
|
|
[AB8500_LDO_ANAMIC2] = {
|
|
.desc = {
|
|
.name = "LDO-ANAMIC2",
|
|
.ops = &ab8500_regulator_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_ANAMIC2,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 2050000,
|
|
},
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x83,
|
|
.update_mask = 0x10,
|
|
.update_val = 0x10,
|
|
},
|
|
[AB8500_LDO_DMIC] = {
|
|
.desc = {
|
|
.name = "LDO-DMIC",
|
|
.ops = &ab8500_regulator_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_DMIC,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 1800000,
|
|
},
|
|
.update_bank = 0x03,
|
|
.update_reg = 0x83,
|
|
.update_mask = 0x04,
|
|
.update_val = 0x04,
|
|
},
|
|
|
|
/*
|
|
* Regulators with fixed voltage and normal/idle modes
|
|
*/
|
|
[AB8500_LDO_ANA] = {
|
|
.desc = {
|
|
.name = "LDO-ANA",
|
|
.ops = &ab8500_regulator_mode_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.id = AB8500_LDO_ANA,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = 1,
|
|
.min_uV = 1200000,
|
|
},
|
|
.load_lp_uA = 1000,
|
|
.update_bank = 0x04,
|
|
.update_reg = 0x06,
|
|
.update_mask = 0x0c,
|
|
.update_val = 0x04,
|
|
.update_val_idle = 0x0c,
|
|
.update_val_normal = 0x04,
|
|
},
|
|
|
|
|
|
};
|
|
|
|
struct ab8500_reg_init {
|
|
u8 bank;
|
|
u8 addr;
|
|
u8 mask;
|
|
};
|
|
|
|
#define REG_INIT(_id, _bank, _addr, _mask) \
|
|
[_id] = { \
|
|
.bank = _bank, \
|
|
.addr = _addr, \
|
|
.mask = _mask, \
|
|
}
|
|
|
|
static struct ab8500_reg_init ab8500_reg_init[] = {
|
|
/*
|
|
* 0x30, VanaRequestCtrl
|
|
* 0x0c, VpllRequestCtrl
|
|
* 0xc0, VextSupply1RequestCtrl
|
|
*/
|
|
REG_INIT(AB8500_REGUREQUESTCTRL2, 0x03, 0x04, 0xfc),
|
|
/*
|
|
* 0x03, VextSupply2RequestCtrl
|
|
* 0x0c, VextSupply3RequestCtrl
|
|
* 0x30, Vaux1RequestCtrl
|
|
* 0xc0, Vaux2RequestCtrl
|
|
*/
|
|
REG_INIT(AB8500_REGUREQUESTCTRL3, 0x03, 0x05, 0xff),
|
|
/*
|
|
* 0x03, Vaux3RequestCtrl
|
|
* 0x04, SwHPReq
|
|
*/
|
|
REG_INIT(AB8500_REGUREQUESTCTRL4, 0x03, 0x06, 0x07),
|
|
/*
|
|
* 0x01, Vsmps1SysClkReq1HPValid
|
|
* 0x02, Vsmps2SysClkReq1HPValid
|
|
* 0x04, Vsmps3SysClkReq1HPValid
|
|
* 0x08, VanaSysClkReq1HPValid
|
|
* 0x10, VpllSysClkReq1HPValid
|
|
* 0x20, Vaux1SysClkReq1HPValid
|
|
* 0x40, Vaux2SysClkReq1HPValid
|
|
* 0x80, Vaux3SysClkReq1HPValid
|
|
*/
|
|
REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1, 0x03, 0x07, 0xff),
|
|
/*
|
|
* 0x10, VextSupply1SysClkReq1HPValid
|
|
* 0x20, VextSupply2SysClkReq1HPValid
|
|
* 0x40, VextSupply3SysClkReq1HPValid
|
|
*/
|
|
REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2, 0x03, 0x08, 0x70),
|
|
/*
|
|
* 0x08, VanaHwHPReq1Valid
|
|
* 0x20, Vaux1HwHPReq1Valid
|
|
* 0x40, Vaux2HwHPReq1Valid
|
|
* 0x80, Vaux3HwHPReq1Valid
|
|
*/
|
|
REG_INIT(AB8500_REGUHWHPREQ1VALID1, 0x03, 0x09, 0xe8),
|
|
/*
|
|
* 0x01, VextSupply1HwHPReq1Valid
|
|
* 0x02, VextSupply2HwHPReq1Valid
|
|
* 0x04, VextSupply3HwHPReq1Valid
|
|
*/
|
|
REG_INIT(AB8500_REGUHWHPREQ1VALID2, 0x03, 0x0a, 0x07),
|
|
/*
|
|
* 0x08, VanaHwHPReq2Valid
|
|
* 0x20, Vaux1HwHPReq2Valid
|
|
* 0x40, Vaux2HwHPReq2Valid
|
|
* 0x80, Vaux3HwHPReq2Valid
|
|
*/
|
|
REG_INIT(AB8500_REGUHWHPREQ2VALID1, 0x03, 0x0b, 0xe8),
|
|
/*
|
|
* 0x01, VextSupply1HwHPReq2Valid
|
|
* 0x02, VextSupply2HwHPReq2Valid
|
|
* 0x04, VextSupply3HwHPReq2Valid
|
|
*/
|
|
REG_INIT(AB8500_REGUHWHPREQ2VALID2, 0x03, 0x0c, 0x07),
|
|
/*
|
|
* 0x20, VanaSwHPReqValid
|
|
* 0x80, Vaux1SwHPReqValid
|
|
*/
|
|
REG_INIT(AB8500_REGUSWHPREQVALID1, 0x03, 0x0d, 0xa0),
|
|
/*
|
|
* 0x01, Vaux2SwHPReqValid
|
|
* 0x02, Vaux3SwHPReqValid
|
|
* 0x04, VextSupply1SwHPReqValid
|
|
* 0x08, VextSupply2SwHPReqValid
|
|
* 0x10, VextSupply3SwHPReqValid
|
|
*/
|
|
REG_INIT(AB8500_REGUSWHPREQVALID2, 0x03, 0x0e, 0x1f),
|
|
/*
|
|
* 0x02, SysClkReq2Valid1
|
|
* ...
|
|
* 0x80, SysClkReq8Valid1
|
|
*/
|
|
REG_INIT(AB8500_REGUSYSCLKREQVALID1, 0x03, 0x0f, 0xfe),
|
|
/*
|
|
* 0x02, SysClkReq2Valid2
|
|
* ...
|
|
* 0x80, SysClkReq8Valid2
|
|
*/
|
|
REG_INIT(AB8500_REGUSYSCLKREQVALID2, 0x03, 0x10, 0xfe),
|
|
/*
|
|
* 0x02, VTVoutEna
|
|
* 0x04, Vintcore12Ena
|
|
* 0x38, Vintcore12Sel
|
|
* 0x40, Vintcore12LP
|
|
* 0x80, VTVoutLP
|
|
*/
|
|
REG_INIT(AB8500_REGUMISC1, 0x03, 0x80, 0xfe),
|
|
/*
|
|
* 0x02, VaudioEna
|
|
* 0x04, VdmicEna
|
|
* 0x08, Vamic1Ena
|
|
* 0x10, Vamic2Ena
|
|
*/
|
|
REG_INIT(AB8500_VAUDIOSUPPLY, 0x03, 0x83, 0x1e),
|
|
/*
|
|
* 0x01, Vamic1_dzout
|
|
* 0x02, Vamic2_dzout
|
|
*/
|
|
REG_INIT(AB8500_REGUCTRL1VAMIC, 0x03, 0x84, 0x03),
|
|
/*
|
|
* 0x0c, VBBNRegu
|
|
* 0x03, VBBPRegu
|
|
* NOTE! PRCMU register
|
|
*/
|
|
REG_INIT(AB8500_ARMREGU2, 0x04, 0x01, 0x0f),
|
|
/*
|
|
* 0x0c, VBBPSel1
|
|
* 0x03, VBBNSel1
|
|
* NOTE! PRCMU register
|
|
*/
|
|
REG_INIT(AB8500_VBBSEL1, 0x04, 0x11, 0x0f),
|
|
/*
|
|
* 0x0c, VBBNSel2
|
|
* 0x03, VBBPSel2
|
|
* NOTE! PRCMU register
|
|
*/
|
|
REG_INIT(AB8500_VBBSEL2, 0x04, 0x12, 0x0f),
|
|
/*
|
|
* 0x03, Vsmps1Regu
|
|
* 0x0c, Vsmps1SelCtrl
|
|
*/
|
|
REG_INIT(AB8500_VSMPS1REGU, 0x04, 0x03, 0x0f),
|
|
/*
|
|
* 0x03, Vsmps2Regu
|
|
* 0x0c, Vsmps2SelCtrl
|
|
*/
|
|
REG_INIT(AB8500_VSMPS2REGU, 0x04, 0x04, 0x0f),
|
|
/*
|
|
* 0x0c, VanaRegu
|
|
* 0x03, VpllRegu
|
|
*/
|
|
REG_INIT(AB8500_VPLLVANAREGU, 0x04, 0x06, 0x0f),
|
|
/*
|
|
* 0x01, VrefDDREna
|
|
* 0x02, VrefDDRSleepMode
|
|
*/
|
|
REG_INIT(AB8500_VREFDDR, 0x04, 0x07, 0x03),
|
|
/*
|
|
* 0x03, VextSupply1Regu
|
|
* 0x0c, VextSupply2Regu
|
|
* 0x30, VextSupply3Regu
|
|
* 0x40, ExtSupply2Bypass
|
|
* 0x80, ExtSupply3Bypass
|
|
*/
|
|
REG_INIT(AB8500_EXTSUPPLYREGU, 0x04, 0x08, 0xff),
|
|
/*
|
|
* 0x03, Vaux1Regu
|
|
* 0x0c, Vaux2Regu
|
|
*/
|
|
REG_INIT(AB8500_VAUX12REGU, 0x04, 0x09, 0x0f),
|
|
/*
|
|
* 0x0c, Vrf1Regu
|
|
* 0x03, Vaux3Regu
|
|
*/
|
|
REG_INIT(AB8500_VRF1VAUX3REGU, 0x04, 0x0a, 0x0f),
|
|
/*
|
|
* 0x3f, Vsmps1Sel1
|
|
*/
|
|
REG_INIT(AB8500_VSMPS1SEL1, 0x04, 0x13, 0x3f),
|
|
/*
|
|
* 0x0f, Vaux1Sel
|
|
*/
|
|
REG_INIT(AB8500_VAUX1SEL, 0x04, 0x1f, 0x0f),
|
|
/*
|
|
* 0x0f, Vaux2Sel
|
|
*/
|
|
REG_INIT(AB8500_VAUX2SEL, 0x04, 0x20, 0x0f),
|
|
/*
|
|
* 0x07, Vaux3Sel
|
|
*/
|
|
REG_INIT(AB8500_VRF1VAUX3SEL, 0x04, 0x21, 0x07),
|
|
/*
|
|
* 0x01, VextSupply12LP
|
|
*/
|
|
REG_INIT(AB8500_REGUCTRL2SPARE, 0x04, 0x22, 0x01),
|
|
/*
|
|
* 0x04, Vaux1Disch
|
|
* 0x08, Vaux2Disch
|
|
* 0x10, Vaux3Disch
|
|
* 0x20, Vintcore12Disch
|
|
* 0x40, VTVoutDisch
|
|
* 0x80, VaudioDisch
|
|
*/
|
|
REG_INIT(AB8500_REGUCTRLDISCH, 0x04, 0x43, 0xfc),
|
|
/*
|
|
* 0x02, VanaDisch
|
|
* 0x04, VdmicPullDownEna
|
|
* 0x10, VdmicDisch
|
|
*/
|
|
REG_INIT(AB8500_REGUCTRLDISCH2, 0x04, 0x44, 0x16),
|
|
};
|
|
|
|
static int ab8500_regulator_init_registers(struct platform_device *pdev,
|
|
int id, int mask, int value)
|
|
{
|
|
int err;
|
|
|
|
BUG_ON(value & ~mask);
|
|
BUG_ON(mask & ~ab8500_reg_init[id].mask);
|
|
|
|
/* initialize register */
|
|
err = abx500_mask_and_set_register_interruptible(
|
|
&pdev->dev,
|
|
ab8500_reg_init[id].bank,
|
|
ab8500_reg_init[id].addr,
|
|
mask, value);
|
|
if (err < 0) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to initialize 0x%02x, 0x%02x.\n",
|
|
ab8500_reg_init[id].bank,
|
|
ab8500_reg_init[id].addr);
|
|
return err;
|
|
}
|
|
dev_vdbg(&pdev->dev,
|
|
" init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
|
|
ab8500_reg_init[id].bank,
|
|
ab8500_reg_init[id].addr,
|
|
mask, value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_regulator_register(struct platform_device *pdev,
|
|
struct regulator_init_data *init_data,
|
|
int id,
|
|
struct device_node *np)
|
|
{
|
|
struct ab8500_regulator_info *info = NULL;
|
|
struct regulator_config config = { };
|
|
int err;
|
|
|
|
/* assign per-regulator data */
|
|
info = &ab8500_regulator_info[id];
|
|
info->dev = &pdev->dev;
|
|
|
|
config.dev = &pdev->dev;
|
|
config.init_data = init_data;
|
|
config.driver_data = info;
|
|
config.of_node = np;
|
|
|
|
/* fix for hardware before ab8500v2.0 */
|
|
if (abx500_get_chip_id(info->dev) < 0x20) {
|
|
if (info->desc.id == AB8500_LDO_AUX3) {
|
|
info->desc.n_voltages =
|
|
ARRAY_SIZE(ldo_vauxn_voltages);
|
|
info->desc.volt_table = ldo_vauxn_voltages;
|
|
info->voltage_mask = 0xf;
|
|
}
|
|
}
|
|
|
|
/* register regulator with framework */
|
|
info->regulator = regulator_register(&info->desc, &config);
|
|
if (IS_ERR(info->regulator)) {
|
|
err = PTR_ERR(info->regulator);
|
|
dev_err(&pdev->dev, "failed to register regulator %s\n",
|
|
info->desc.name);
|
|
/* when we fail, un-register all earlier regulators */
|
|
while (--id >= 0) {
|
|
info = &ab8500_regulator_info[id];
|
|
regulator_unregister(info->regulator);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct of_regulator_match ab8500_regulator_matches[] = {
|
|
{ .name = "ab8500_ldo_aux1", .driver_data = (void *) AB8500_LDO_AUX1, },
|
|
{ .name = "ab8500_ldo_aux2", .driver_data = (void *) AB8500_LDO_AUX2, },
|
|
{ .name = "ab8500_ldo_aux3", .driver_data = (void *) AB8500_LDO_AUX3, },
|
|
{ .name = "ab8500_ldo_intcore", .driver_data = (void *) AB8500_LDO_INTCORE, },
|
|
{ .name = "ab8500_ldo_tvout", .driver_data = (void *) AB8500_LDO_TVOUT, },
|
|
{ .name = "ab8500_ldo_usb", .driver_data = (void *) AB8500_LDO_USB, },
|
|
{ .name = "ab8500_ldo_audio", .driver_data = (void *) AB8500_LDO_AUDIO, },
|
|
{ .name = "ab8500_ldo_anamic1", .driver_data = (void *) AB8500_LDO_ANAMIC1, },
|
|
{ .name = "ab8500_ldo_amamic2", .driver_data = (void *) AB8500_LDO_ANAMIC2, },
|
|
{ .name = "ab8500_ldo_dmic", .driver_data = (void *) AB8500_LDO_DMIC, },
|
|
{ .name = "ab8500_ldo_ana", .driver_data = (void *) AB8500_LDO_ANA, },
|
|
};
|
|
|
|
static int
|
|
ab8500_regulator_of_probe(struct platform_device *pdev, struct device_node *np)
|
|
{
|
|
int err, i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
|
|
err = ab8500_regulator_register(
|
|
pdev, ab8500_regulator_matches[i].init_data,
|
|
i, ab8500_regulator_matches[i].of_node);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_regulator_probe(struct platform_device *pdev)
|
|
{
|
|
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
|
|
struct ab8500_platform_data *pdata;
|
|
struct device_node *np = pdev->dev.of_node;
|
|
int i, err;
|
|
|
|
if (np) {
|
|
err = of_regulator_match(&pdev->dev, np,
|
|
ab8500_regulator_matches,
|
|
ARRAY_SIZE(ab8500_regulator_matches));
|
|
if (err < 0) {
|
|
dev_err(&pdev->dev,
|
|
"Error parsing regulator init data: %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
err = ab8500_regulator_of_probe(pdev, np);
|
|
return err;
|
|
}
|
|
|
|
if (!ab8500) {
|
|
dev_err(&pdev->dev, "null mfd parent\n");
|
|
return -EINVAL;
|
|
}
|
|
pdata = dev_get_platdata(ab8500->dev);
|
|
if (!pdata) {
|
|
dev_err(&pdev->dev, "null pdata\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* make sure the platform data has the correct size */
|
|
if (pdata->num_regulator != ARRAY_SIZE(ab8500_regulator_info)) {
|
|
dev_err(&pdev->dev, "Configuration error: size mismatch.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* initialize registers */
|
|
for (i = 0; i < pdata->num_regulator_reg_init; i++) {
|
|
int id, mask, value;
|
|
|
|
id = pdata->regulator_reg_init[i].id;
|
|
mask = pdata->regulator_reg_init[i].mask;
|
|
value = pdata->regulator_reg_init[i].value;
|
|
|
|
/* check for configuration errors */
|
|
BUG_ON(id >= AB8500_NUM_REGULATOR_REGISTERS);
|
|
|
|
err = ab8500_regulator_init_registers(pdev, id, mask, value);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
/* register all regulators */
|
|
for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
|
|
err = ab8500_regulator_register(pdev, &pdata->regulator[i], i, NULL);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ab8500_regulator_remove(struct platform_device *pdev)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
|
|
struct ab8500_regulator_info *info = NULL;
|
|
info = &ab8500_regulator_info[i];
|
|
|
|
dev_vdbg(rdev_get_dev(info->regulator),
|
|
"%s-remove\n", info->desc.name);
|
|
|
|
regulator_unregister(info->regulator);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver ab8500_regulator_driver = {
|
|
.probe = ab8500_regulator_probe,
|
|
.remove = ab8500_regulator_remove,
|
|
.driver = {
|
|
.name = "ab8500-regulator",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init ab8500_regulator_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = platform_driver_register(&ab8500_regulator_driver);
|
|
if (ret != 0)
|
|
pr_err("Failed to register ab8500 regulator: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
subsys_initcall(ab8500_regulator_init);
|
|
|
|
static void __exit ab8500_regulator_exit(void)
|
|
{
|
|
platform_driver_unregister(&ab8500_regulator_driver);
|
|
}
|
|
module_exit(ab8500_regulator_exit);
|
|
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
|
|
MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC");
|
|
MODULE_ALIAS("platform:ab8500-regulator");
|