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/*
* Copyright (C) 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdtdec.h>
#include <errno.h>
#include <dm.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/regulator.h>
#include <power/s5m8767.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct sec_voltage_desc buck_v1 = {
.max = 2225000,
.min = 650000,
.step = 6250,
};
static const struct sec_voltage_desc buck_v2 = {
.max = 1600000,
.min = 600000,
.step = 6250,
};
static const struct sec_voltage_desc buck_v3 = {
.max = 3000000,
.min = 750000,
.step = 12500,
};
static const struct sec_voltage_desc ldo_v1 = {
.max = 3950000,
.min = 800000,
.step = 50000,
};
static const struct sec_voltage_desc ldo_v2 = {
.max = 2375000,
.min = 800000,
.step = 25000,
};
static const struct s5m8767_para buck_param[] = {
/*
* | voltage ----| | enable -| voltage
* regnum addr bpos mask addr on desc
*/
{S5M8767_BUCK1, 0x33, 0x0, 0xff, 0x32, 0x3, &buck_v1},
{S5M8767_BUCK2, 0x35, 0x0, 0xff, 0x34, 0x1, &buck_v2},
{S5M8767_BUCK3, 0x3e, 0x0, 0xff, 0x3d, 0x1, &buck_v2},
{S5M8767_BUCK4, 0x47, 0x0, 0xff, 0x46, 0x1, &buck_v2},
{S5M8767_BUCK5, 0x50, 0x0, 0xff, 0x4f, 0x3, &buck_v1},
{S5M8767_BUCK6, 0x55, 0x0, 0xff, 0x54, 0x3, &buck_v1},
{S5M8767_BUCK7, 0x57, 0x0, 0xff, 0x56, 0x3, &buck_v3},
{S5M8767_BUCK8, 0x59, 0x0, 0xff, 0x58, 0x3, &buck_v3},
{S5M8767_BUCK9, 0x5b, 0x0, 0xff, 0x5a, 0x3, &buck_v3},
};
static const struct s5m8767_para ldo_param[] = {
{S5M8767_LDO1, 0x5c, 0x0, 0x3f, 0x5c, 0x3, &ldo_v2},
{S5M8767_LDO2, 0x5d, 0x0, 0x3f, 0x5d, 0x1, &ldo_v2},
{S5M8767_LDO3, 0x61, 0x0, 0x3f, 0x61, 0x3, &ldo_v1},
{S5M8767_LDO4, 0x62, 0x0, 0x3f, 0x62, 0x3, &ldo_v1},
{S5M8767_LDO5, 0x63, 0x0, 0x3f, 0x63, 0x3, &ldo_v1},
{S5M8767_LDO6, 0x64, 0x0, 0x3f, 0x64, 0x1, &ldo_v2},
{S5M8767_LDO7, 0x65, 0x0, 0x3f, 0x65, 0x1, &ldo_v2},
{S5M8767_LDO8, 0x66, 0x0, 0x3f, 0x66, 0x1, &ldo_v2},
{S5M8767_LDO9, 0x67, 0x0, 0x3f, 0x67, 0x3, &ldo_v1},
{S5M8767_LDO10, 0x68, 0x0, 0x3f, 0x68, 0x1, &ldo_v1},
{S5M8767_LDO11, 0x69, 0x0, 0x3f, 0x69, 0x1, &ldo_v1},
{S5M8767_LDO12, 0x6a, 0x0, 0x3f, 0x6a, 0x1, &ldo_v1},
{S5M8767_LDO13, 0x6b, 0x0, 0x3f, 0x6b, 0x3, &ldo_v1},
{S5M8767_LDO14, 0x6c, 0x0, 0x3f, 0x6c, 0x1, &ldo_v1},
{S5M8767_LDO15, 0x6d, 0x0, 0x3f, 0x6d, 0x1, &ldo_v2},
{S5M8767_LDO16, 0x6e, 0x0, 0x3f, 0x6e, 0x1, &ldo_v1},
{S5M8767_LDO17, 0x6f, 0x0, 0x3f, 0x6f, 0x3, &ldo_v1},
{S5M8767_LDO18, 0x70, 0x0, 0x3f, 0x70, 0x3, &ldo_v1},
{S5M8767_LDO19, 0x71, 0x0, 0x3f, 0x71, 0x3, &ldo_v1},
{S5M8767_LDO20, 0x72, 0x0, 0x3f, 0x72, 0x3, &ldo_v1},
{S5M8767_LDO21, 0x73, 0x0, 0x3f, 0x73, 0x3, &ldo_v1},
{S5M8767_LDO22, 0x74, 0x0, 0x3f, 0x74, 0x3, &ldo_v1},
{S5M8767_LDO23, 0x75, 0x0, 0x3f, 0x75, 0x3, &ldo_v1},
{S5M8767_LDO24, 0x76, 0x0, 0x3f, 0x76, 0x3, &ldo_v1},
{S5M8767_LDO25, 0x77, 0x0, 0x3f, 0x77, 0x3, &ldo_v1},
{S5M8767_LDO26, 0x78, 0x0, 0x3f, 0x78, 0x3, &ldo_v1},
{S5M8767_LDO27, 0x79, 0x0, 0x3f, 0x79, 0x3, &ldo_v1},
{S5M8767_LDO28, 0x7a, 0x0, 0x3f, 0x7a, 0x3, &ldo_v1},
};
enum {
ENABLE_SHIFT = 6,
ENABLE_MASK = 3,
};
static int reg_get_value(struct udevice *dev, const struct s5m8767_para *param)
{
const struct sec_voltage_desc *desc;
int ret, uv, val;
ret = pmic_reg_read(dev->parent, param->vol_addr);
if (ret < 0)
return ret;
desc = param->vol;
val = (ret >> param->vol_bitpos) & param->vol_bitmask;
uv = desc->min + val * desc->step;
return uv;
}
static int reg_set_value(struct udevice *dev, const struct s5m8767_para *param,
int uv)
{
const struct sec_voltage_desc *desc;
int ret, val;
desc = param->vol;
if (uv < desc->min || uv > desc->max)
return -EINVAL;
val = (uv - desc->min) / desc->step;
val = (val & param->vol_bitmask) << param->vol_bitpos;
ret = pmic_clrsetbits(dev->parent, param->vol_addr,
param->vol_bitmask << param->vol_bitpos,
val);
return ret;
}
static int s5m8767_ldo_probe(struct udevice *dev)
{
struct dm_regulator_uclass_platdata *uc_pdata;
uc_pdata = dev_get_uclass_platdata(dev);
uc_pdata->type = REGULATOR_TYPE_LDO;
uc_pdata->mode_count = 0;
return 0;
}
static int ldo_get_value(struct udevice *dev)
{
int ldo = dev->driver_data;
return reg_get_value(dev, &ldo_param[ldo]);
}
static int ldo_set_value(struct udevice *dev, int uv)
{
int ldo = dev->driver_data;
return reg_set_value(dev, &ldo_param[ldo], uv);
}
static int reg_get_enable(struct udevice *dev, const struct s5m8767_para *param)
{
bool enable;
int ret;
ret = pmic_reg_read(dev->parent, param->reg_enaddr);
if (ret < 0)
return ret;
enable = (ret >> ENABLE_SHIFT) & ENABLE_MASK;
return enable;
}
static int reg_set_enable(struct udevice *dev, const struct s5m8767_para *param,
bool enable)
{
int ret;
ret = pmic_reg_read(dev->parent, param->reg_enaddr);
if (ret < 0)
return ret;
ret = pmic_clrsetbits(dev->parent, param->reg_enaddr,
ENABLE_MASK << ENABLE_SHIFT,
enable ? param->reg_enbiton << ENABLE_SHIFT : 0);
return ret;
}
static bool ldo_get_enable(struct udevice *dev)
{
int ldo = dev->driver_data;
return reg_get_enable(dev, &ldo_param[ldo]);
}
static int ldo_set_enable(struct udevice *dev, bool enable)
{
int ldo = dev->driver_data;
return reg_set_enable(dev, &ldo_param[ldo], enable);
}
static int s5m8767_buck_probe(struct udevice *dev)
{
struct dm_regulator_uclass_platdata *uc_pdata;
uc_pdata = dev_get_uclass_platdata(dev);
uc_pdata->type = REGULATOR_TYPE_BUCK;
uc_pdata->mode_count = 0;
return 0;
}
static int buck_get_value(struct udevice *dev)
{
int buck = dev->driver_data;
return reg_get_value(dev, &buck_param[buck]);
}
static int buck_set_value(struct udevice *dev, int uv)
{
int buck = dev->driver_data;
return reg_set_value(dev, &buck_param[buck], uv);
}
static bool buck_get_enable(struct udevice *dev)
{
int buck = dev->driver_data;
return reg_get_enable(dev, &buck_param[buck]);
}
static int buck_set_enable(struct udevice *dev, bool enable)
{
int buck = dev->driver_data;
return reg_set_enable(dev, &buck_param[buck], enable);
}
static const struct dm_regulator_ops s5m8767_ldo_ops = {
.get_value = ldo_get_value,
.set_value = ldo_set_value,
.get_enable = ldo_get_enable,
.set_enable = ldo_set_enable,
};
U_BOOT_DRIVER(s5m8767_ldo) = {
.name = S5M8767_LDO_DRIVER,
.id = UCLASS_REGULATOR,
.ops = &s5m8767_ldo_ops,
.probe = s5m8767_ldo_probe,
};
static const struct dm_regulator_ops s5m8767_buck_ops = {
.get_value = buck_get_value,
.set_value = buck_set_value,
.get_enable = buck_get_enable,
.set_enable = buck_set_enable,
};
U_BOOT_DRIVER(s5m8767_buck) = {
.name = S5M8767_BUCK_DRIVER,
.id = UCLASS_REGULATOR,
.ops = &s5m8767_buck_ops,
.probe = s5m8767_buck_probe,
};
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