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u-boot-megous/drivers/power/regulator/da9063.c
Simon Glass 0fd3d91152 dm: Use access methods for dev/uclass private data 
Most drivers use these access methods but a few do not. Update them.

In some cases the access is not permitted, so mark those with a FIXME tag
for the maintainer to check.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pratyush Yadav <p.yadav@ti.com>
2021-01-05 12:24:40 -07:00

390 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Flowbird
* Martin Fuzzey <martin.fuzzey@flowbird.group>
*/
#include <common.h>
#include <dm.h>
#include <linux/bitops.h>
#include <power/da9063_pmic.h>
#include <power/pmic.h>
#include <power/regulator.h>
#define DA9063_BUCK_EN 0x01
#define DA9063_LDO_EN 0x01
#define DA9063_VBUCK_MASK 0x7F
#define DA9063_BUCK_SL 0x80
#define DA9063_LDO_SL 0x80
#define DA9063_VLDO1_MASK 0x3F
#define DA9063_VLDO2_MASK 0x3F
#define DA9063_VLDO3_MASK 0x7F
#define DA9063_VLDO4_MASK 0x7F
#define DA9063_VLDO5_MASK 0x3F
#define DA9063_VLDO6_MASK 0x3F
#define DA9063_VLDO7_MASK 0x3F
#define DA9063_VLDO8_MASK 0x3F
#define DA9063_VLDO9_MASK 0x3F
#define DA9063_VLDO10_MASK 0x3F
#define DA9063_VLDO11_MASK 0x3F
#define DA9063_BUCK_MODE_MASK 0xC0
#define DA9063_BUCK_MODE_MANUAL 0x00
#define DA9063_BUCK_MODE_SLEEP 0x40
#define DA9063_BUCK_MODE_SYNC 0x80
#define DA9063_BUCK_MODE_AUTO 0xC0
#define DA9063_BIO_ILIM_MASK 0x0F
#define DA9063_BMEM_ILIM_MASK 0xF0
#define DA9063_BPRO_ILIM_MASK 0x0F
#define DA9063_BPERI_ILIM_MASK 0xF0
#define DA9063_BCORE1_ILIM_MASK 0x0F
#define DA9063_BCORE2_ILIM_MASK 0xF0
struct da9063_reg_info {
uint min_uV;
uint step_uV;
uint max_uV;
uint min_uA;
uint step_uA;
uint max_uA;
uint en_reg;
uint vsel_reg;
uint mode_reg;
uint ilim_reg;
u8 en_mask;
u8 vsel_mask;
u8 ilim_mask;
const char *dt_node_name;
const int *current_limits;
};
struct da9063_priv {
const struct da9063_reg_info *reg_info;
};
static struct dm_regulator_mode da9063_ldo_modes[] = {
{ .id = DA9063_LDOMODE_SLEEP,
.register_value = DA9063_LDO_SL, .name = "SLEEP" },
{ .id = DA9063_LDOMODE_NORMAL,
.register_value = 0, .name = "NORMAL" },
};
#define DA9063_LDO(regl_name, min_mV, step_mV, max_mV) \
.min_uV = (min_mV) * 1000, \
.step_uV = (step_mV) * 1000, \
.max_uV = (max_mV) * 1000, \
.en_reg = DA9063_REG_##regl_name##_CONT, \
.en_mask = DA9063_LDO_EN, \
.vsel_reg = DA9063_REG_V##regl_name##_A, \
.vsel_mask = DA9063_V##regl_name##_MASK, \
.mode_reg = DA9063_REG_V##regl_name##_A \
/* This array is directly indexed so must stay in numerical order */
static const struct da9063_reg_info da9063_ldo_info[] = {
{ DA9063_LDO(LDO1, 600, 20, 1860) },
{ DA9063_LDO(LDO2, 600, 20, 1860) },
{ DA9063_LDO(LDO3, 900, 20, 3440) },
{ DA9063_LDO(LDO4, 900, 20, 3440) },
{ DA9063_LDO(LDO5, 900, 50, 3600) },
{ DA9063_LDO(LDO6, 900, 50, 3600) },
{ DA9063_LDO(LDO7, 900, 50, 3600) },
{ DA9063_LDO(LDO8, 900, 50, 3600) },
{ DA9063_LDO(LDO9, 950, 50, 3600) },
{ DA9063_LDO(LDO10, 900, 50, 3600) },
{ DA9063_LDO(LDO11, 900, 50, 3600) },
};
static struct dm_regulator_mode da9063_buck_modes[] = {
{ .id = DA9063_BUCKMODE_SLEEP,
.register_value = DA9063_BUCK_MODE_SLEEP, .name = "SLEEP" },
{ .id = DA9063_BUCKMODE_SYNC,
.register_value = DA9063_BUCK_MODE_SYNC, .name = "SYNC" },
{ .id = DA9063_BUCKMODE_AUTO,
.register_value = DA9063_BUCK_MODE_AUTO, .name = "AUTO" },
};
#define DA9063_BUCK(regl_name, dt_name, \
min_mV, step_mV, max_mV, \
min_mA, step_mA, max_mA, _ilim_reg) \
.dt_node_name = dt_name, \
.min_uV = (min_mV) * 1000, \
.step_uV = (step_mV) * 1000, \
.max_uV = (max_mV) * 1000, \
.min_uA = (min_mA) * 1000, \
.step_uA = (step_mA) * 1000, \
.max_uA = (max_mA) * 1000, \
.en_reg = DA9063_REG_##regl_name##_CONT, \
.en_mask = DA9063_BUCK_EN, \
.vsel_reg = DA9063_REG_V##regl_name##_A, \
.vsel_mask = DA9063_VBUCK_MASK, \
.mode_reg = DA9063_REG_##regl_name##_CFG, \
.ilim_reg = DA9063_REG_BUCK_ILIM_##_ilim_reg, \
.ilim_mask = DA9063_##regl_name##_ILIM_MASK
static const struct da9063_reg_info da9063_buck_info[] = {
/* mV mA */
{ DA9063_BUCK(BCORE1, "bcore1", 300, 10, 1570, 500, 100, 2000, C) },
{ DA9063_BUCK(BCORE2, "bcore2", 300, 10, 1570, 500, 100, 2000, C) },
{ DA9063_BUCK(BPRO, "bpro", 530, 10, 1800, 500, 100, 2000, B) },
{ DA9063_BUCK(BMEM, "bmem", 800, 20, 3340, 1500, 100, 3000, A) },
{ DA9063_BUCK(BIO, "bio", 800, 20, 3340, 1500, 100, 3000, A) },
{ DA9063_BUCK(BPERI, "bperi", 800, 20, 3340, 1500, 100, 3000, B) },
};
static int da9063_get_enable(struct udevice *dev)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
int ret;
ret = pmic_reg_read(dev->parent, info->en_reg);
if (ret < 0)
return ret;
return ret & info->en_mask ? true : false;
}
static int da9063_set_enable(struct udevice *dev, bool enable)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
return pmic_clrsetbits(dev->parent, info->en_reg,
info->en_mask, enable ? info->en_mask : 0);
}
static int da9063_get_voltage(struct udevice *dev)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
int ret;
ret = pmic_reg_read(dev->parent, info->vsel_reg);
if (ret < 0)
return ret;
return info->min_uV + (ret & info->vsel_mask) * info->step_uV;
}
static int da9063_set_voltage(struct udevice *dev, int uV)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
uint sel;
if (uV < info->min_uV || uV > info->max_uV)
return -EINVAL;
sel = (uV - info->min_uV) / info->step_uV;
return pmic_clrsetbits(dev->parent, info->vsel_reg,
info->vsel_mask, sel);
}
static const struct dm_regulator_mode
*da9063_find_mode_by_id(int id,
const struct dm_regulator_mode *modes,
uint mode_count)
{
for (; mode_count; mode_count--) {
if (modes->id == id)
return modes;
modes++;
}
return NULL;
}
static int ldo_get_mode(struct udevice *dev)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
int val;
val = pmic_reg_read(dev->parent, info->mode_reg);
if (val < 0)
return val;
if (val & DA9063_LDO_SL)
return DA9063_LDOMODE_SLEEP;
else
return DA9063_LDOMODE_NORMAL;
}
static int ldo_set_mode(struct udevice *dev, int mode_id)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
const struct dm_regulator_mode *mode;
mode = da9063_find_mode_by_id(mode_id,
da9063_ldo_modes,
ARRAY_SIZE(da9063_ldo_modes));
if (!mode)
return -EINVAL;
return pmic_clrsetbits(dev->parent, info->mode_reg,
DA9063_LDO_SL, mode->register_value);
}
static int buck_get_mode(struct udevice *dev)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
int i;
int val;
val = pmic_reg_read(dev->parent, info->mode_reg);
if (val < 0)
return val;
val &= DA9063_BUCK_MODE_MASK;
if (val == DA9063_BUCK_MODE_MANUAL) {
val = pmic_reg_read(dev->parent, info->vsel_reg);
if (val < 0)
return val;
if (val & DA9063_BUCK_SL)
return DA9063_BUCKMODE_SLEEP;
else
return DA9063_BUCKMODE_SYNC;
}
for (i = 0; i < ARRAY_SIZE(da9063_buck_modes); i++) {
if (da9063_buck_modes[i].register_value == val)
return da9063_buck_modes[i].id;
}
return -EINVAL;
}
static int buck_set_mode(struct udevice *dev, int mode_id)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
const struct dm_regulator_mode *mode;
mode = da9063_find_mode_by_id(mode_id,
da9063_buck_modes,
ARRAY_SIZE(da9063_buck_modes));
if (!mode)
return -EINVAL;
return pmic_clrsetbits(dev->parent, info->mode_reg,
DA9063_BUCK_MODE_MASK, mode->register_value);
}
static int buck_get_current_limit(struct udevice *dev)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
int val;
val = pmic_reg_read(dev->parent, info->ilim_reg);
if (val < 0)
return val;
val &= info->ilim_mask;
val >>= (ffs(info->ilim_mask) - 1);
return info->min_uA + val * info->step_uA;
}
static int buck_set_current_limit(struct udevice *dev, int uA)
{
const struct da9063_priv *priv = dev_get_priv(dev);
const struct da9063_reg_info *info = priv->reg_info;
int val;
if (uA < info->min_uA || uA > info->max_uA)
return -EINVAL;
val = (uA - info->min_uA) / info->step_uA;
val <<= (ffs(info->ilim_mask) - 1);
return pmic_clrsetbits(dev->parent, info->ilim_reg,
info->ilim_mask, val);
}
static int da9063_ldo_probe(struct udevice *dev)
{
struct dm_regulator_uclass_plat *uc_pdata;
struct da9063_priv *priv = dev_get_priv(dev);
/* LDOs are named numerically in DT so can directly index */
if (dev->driver_data < 1 ||
dev->driver_data > ARRAY_SIZE(da9063_ldo_info))
return -EINVAL;
priv->reg_info = &da9063_ldo_info[dev->driver_data - 1];
uc_pdata = dev_get_uclass_plat(dev);
uc_pdata->type = REGULATOR_TYPE_LDO;
uc_pdata->mode = da9063_ldo_modes;
uc_pdata->mode_count = ARRAY_SIZE(da9063_ldo_modes);
return 0;
}
static int da9063_buck_probe(struct udevice *dev)
{
struct dm_regulator_uclass_plat *uc_pdata;
struct da9063_priv *priv = dev_get_priv(dev);
int i;
/* Bucks have names rather than numbers so need to match with DT */
for (i = 0; i < ARRAY_SIZE(da9063_buck_info); i++) {
const struct da9063_reg_info *info = &da9063_buck_info[i];
if (!strcmp(info->dt_node_name, dev->name)) {
priv->reg_info = info;
break;
}
}
if (!priv->reg_info)
return -ENODEV;
uc_pdata = dev_get_uclass_plat(dev);
uc_pdata->type = REGULATOR_TYPE_BUCK;
uc_pdata->mode = da9063_buck_modes;
uc_pdata->mode_count = ARRAY_SIZE(da9063_buck_modes);
return 0;
}
static const struct dm_regulator_ops da9063_ldo_ops = {
.get_value = da9063_get_voltage,
.set_value = da9063_set_voltage,
.get_enable = da9063_get_enable,
.set_enable = da9063_set_enable,
.get_mode = ldo_get_mode,
.set_mode = ldo_set_mode,
};
U_BOOT_DRIVER(da9063_ldo) = {
.name = DA9063_LDO_DRIVER,
.id = UCLASS_REGULATOR,
.ops = &da9063_ldo_ops,
.probe = da9063_ldo_probe,
.priv_auto = sizeof(struct da9063_priv),
};
static const struct dm_regulator_ops da9063_buck_ops = {
.get_value = da9063_get_voltage,
.set_value = da9063_set_voltage,
.get_enable = da9063_get_enable,
.set_enable = da9063_set_enable,
.get_mode = buck_get_mode,
.set_mode = buck_set_mode,
.get_current = buck_get_current_limit,
.set_current = buck_set_current_limit,
};
U_BOOT_DRIVER(da9063_buck) = {
.name = DA9063_BUCK_DRIVER,
.id = UCLASS_REGULATOR,
.ops = &da9063_buck_ops,
.probe = da9063_buck_probe,
.priv_auto = sizeof(struct da9063_priv),
};
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