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regulator: max8998: Factor out struct voltage_map_desc 

The struct voltage_map_desc is used for storing min/max/step fileds, and
then setup the min_uV, uV_step and n_voltages fields for regulator_desc.
Introduce MAX8998_LINEAR_REG/MAX8998_OTHERS_REG macro to setup these filds
directly in regulator_desc to simplify the code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Axel Lin 2019-04-14 20:48:18 +08:00 committed by Mark Brown
parent 7d695f20c2
commit 0dceab3334
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 56 additions and 238 deletions
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294
drivers/regulator/max8998.c
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@ -33,72 +33,6 @@ struct max8998_data {
unsigned int buck2_idx;
};
struct voltage_map_desc {
int min;
int max;
int step;
};
/* Voltage maps in uV*/
static const struct voltage_map_desc ldo23_voltage_map_desc = {
.min = 800000, .step = 50000, .max = 1300000,
};
static const struct voltage_map_desc ldo456711_voltage_map_desc = {
.min = 1600000, .step = 100000, .max = 3600000,
};
static const struct voltage_map_desc ldo8_voltage_map_desc = {
.min = 3000000, .step = 100000, .max = 3600000,
};
static const struct voltage_map_desc ldo9_voltage_map_desc = {
.min = 2800000, .step = 100000, .max = 3100000,
};
static const struct voltage_map_desc ldo10_voltage_map_desc = {
.min = 950000, .step = 50000, .max = 1300000,
};
static const struct voltage_map_desc ldo1213_voltage_map_desc = {
.min = 800000, .step = 100000, .max = 3300000,
};
static const struct voltage_map_desc ldo1415_voltage_map_desc = {
.min = 1200000, .step = 100000, .max = 3300000,
};
static const struct voltage_map_desc ldo1617_voltage_map_desc = {
.min = 1600000, .step = 100000, .max = 3600000,
};
static const struct voltage_map_desc buck12_voltage_map_desc = {
.min = 750000, .step = 25000, .max = 1525000,
};
static const struct voltage_map_desc buck3_voltage_map_desc = {
.min = 1600000, .step = 100000, .max = 3600000,
};
static const struct voltage_map_desc buck4_voltage_map_desc = {
.min = 800000, .step = 100000, .max = 2300000,
};
static const struct voltage_map_desc *ldo_voltage_map[] = {
NULL,
NULL,
&ldo23_voltage_map_desc, /* LDO2 */
&ldo23_voltage_map_desc, /* LDO3 */
&ldo456711_voltage_map_desc, /* LDO4 */
&ldo456711_voltage_map_desc, /* LDO5 */
&ldo456711_voltage_map_desc, /* LDO6 */
&ldo456711_voltage_map_desc, /* LDO7 */
&ldo8_voltage_map_desc, /* LDO8 */
&ldo9_voltage_map_desc, /* LDO9 */
&ldo10_voltage_map_desc, /* LDO10 */
&ldo456711_voltage_map_desc, /* LDO11 */
&ldo1213_voltage_map_desc, /* LDO12 */
&ldo1213_voltage_map_desc, /* LDO13 */
&ldo1415_voltage_map_desc, /* LDO14 */
&ldo1415_voltage_map_desc, /* LDO15 */
&ldo1617_voltage_map_desc, /* LDO16 */
&ldo1617_voltage_map_desc, /* LDO17 */
&buck12_voltage_map_desc, /* BUCK1 */
&buck12_voltage_map_desc, /* BUCK2 */
&buck3_voltage_map_desc, /* BUCK3 */
&buck4_voltage_map_desc, /* BUCK4 */
};
static int max8998_get_enable_register(struct regulator_dev *rdev,
int *reg, int *shift)
{
@ -400,7 +334,6 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev,
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
const struct voltage_map_desc *desc;
int buck = rdev_get_id(rdev);
u8 val = 0;
int difference, ret;
@ -408,8 +341,6 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev,
if (buck < MAX8998_BUCK1 || buck > MAX8998_BUCK4)
return -EINVAL;
desc = ldo_voltage_map[buck];
/* Voltage stabilization */
ret = max8998_read_reg(i2c, MAX8998_REG_ONOFF4, &val);
if (ret)
@ -420,7 +351,7 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev,
if (max8998->iodev->type == TYPE_MAX8998 && !(val & MAX8998_ENRAMP))
return 0;
difference = (new_selector - old_selector) * desc->step / 1000;
difference = (new_selector - old_selector) * rdev->desc->uV_step / 1000;
if (difference > 0)
return DIV_ROUND_UP(difference, (val & 0x0f) + 1);
@ -454,158 +385,53 @@ static const struct regulator_ops max8998_others_ops = {
.disable = max8998_ldo_disable,
};
static struct regulator_desc regulators[] = {
{
.name = "LDO2",
.id = MAX8998_LDO2,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO3",
.id = MAX8998_LDO3,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO4",
.id = MAX8998_LDO4,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO5",
.id = MAX8998_LDO5,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO6",
.id = MAX8998_LDO6,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO7",
.id = MAX8998_LDO7,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO8",
.id = MAX8998_LDO8,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO9",
.id = MAX8998_LDO9,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO10",
.id = MAX8998_LDO10,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO11",
.id = MAX8998_LDO11,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO12",
.id = MAX8998_LDO12,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO13",
.id = MAX8998_LDO13,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO14",
.id = MAX8998_LDO14,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO15",
.id = MAX8998_LDO15,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO16",
.id = MAX8998_LDO16,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "LDO17",
.id = MAX8998_LDO17,
.ops = &max8998_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "BUCK1",
.id = MAX8998_BUCK1,
.ops = &max8998_buck_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "BUCK2",
.id = MAX8998_BUCK2,
.ops = &max8998_buck_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "BUCK3",
.id = MAX8998_BUCK3,
.ops = &max8998_buck_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "BUCK4",
.id = MAX8998_BUCK4,
.ops = &max8998_buck_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "EN32KHz-AP",
.id = MAX8998_EN32KHZ_AP,
.ops = &max8998_others_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "EN32KHz-CP",
.id = MAX8998_EN32KHZ_CP,
.ops = &max8998_others_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "ENVICHG",
.id = MAX8998_ENVICHG,
.ops = &max8998_others_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "ESAFEOUT1",
.id = MAX8998_ESAFEOUT1,
.ops = &max8998_others_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
}, {
.name = "ESAFEOUT2",
.id = MAX8998_ESAFEOUT2,
.ops = &max8998_others_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
#define MAX8998_LINEAR_REG(_name, _ops, _min, _step, _max) \
{ \
.name = #_name, \
.id = MAX8998_##_name, \
.ops = _ops, \
.min_uV = (_min), \
.uV_step = (_step), \
.n_voltages = ((_max) - (_min)) / (_step) + 1, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
#define MAX8998_OTHERS_REG(_name, _id) \
{ \
.name = #_name, \
.id = _id, \
.ops = &max8998_others_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
static const struct regulator_desc regulators[] = {
MAX8998_LINEAR_REG(LDO2, &max8998_ldo_ops, 800000, 50000, 1300000),
MAX8998_LINEAR_REG(LDO3, &max8998_ldo_ops, 800000, 50000, 1300000),
MAX8998_LINEAR_REG(LDO4, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO5, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO6, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO7, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO8, &max8998_ldo_ops, 3000000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO9, &max8998_ldo_ops, 2800000, 100000, 3100000),
MAX8998_LINEAR_REG(LDO10, &max8998_ldo_ops, 950000, 50000, 1300000),
MAX8998_LINEAR_REG(LDO11, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO12, &max8998_ldo_ops, 800000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO13, &max8998_ldo_ops, 800000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO14, &max8998_ldo_ops, 1200000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO15, &max8998_ldo_ops, 1200000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO16, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO17, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(BUCK1, &max8998_buck_ops, 750000, 25000, 1525000),
MAX8998_LINEAR_REG(BUCK2, &max8998_buck_ops, 750000, 25000, 1525000),
MAX8998_LINEAR_REG(BUCK3, &max8998_buck_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(BUCK4, &max8998_buck_ops, 800000, 100000, 2300000),
MAX8998_OTHERS_REG(EN32KHz-AP, MAX8998_EN32KHZ_AP),
MAX8998_OTHERS_REG(EN32KHz-CP, MAX8998_EN32KHZ_CP),
MAX8998_OTHERS_REG(ENVICHG, MAX8998_ENVICHG),
MAX8998_OTHERS_REG(ESAFEOUT1, MAX8998_ESAFEOUT1),
MAX8998_OTHERS_REG(ESAFEOUT2, MAX8998_ESAFEOUT2),
};
static int max8998_pmic_dt_parse_dvs_gpio(struct max8998_dev *iodev,
@ -796,9 +622,11 @@ static int max8998_pmic_probe(struct platform_device *pdev)
/* Set predefined values for BUCK1 registers */
for (v = 0; v < ARRAY_SIZE(pdata->buck1_voltage); ++v) {
int index = MAX8998_BUCK1 - MAX8998_LDO2;
i = 0;
while (buck12_voltage_map_desc.min +
buck12_voltage_map_desc.step*i
while (regulators[index].min_uV +
regulators[index].uV_step * i
< pdata->buck1_voltage[v])
i++;
@ -824,9 +652,11 @@ static int max8998_pmic_probe(struct platform_device *pdev)
/* Set predefined values for BUCK2 registers */
for (v = 0; v < ARRAY_SIZE(pdata->buck2_voltage); ++v) {
int index = MAX8998_BUCK2 - MAX8998_LDO2;
i = 0;
while (buck12_voltage_map_desc.min +
buck12_voltage_map_desc.step*i
while (regulators[index].min_uV +
regulators[index].uV_step * i
< pdata->buck2_voltage[v])
i++;
@ -839,18 +669,7 @@ static int max8998_pmic_probe(struct platform_device *pdev)
}
for (i = 0; i < pdata->num_regulators; i++) {
const struct voltage_map_desc *desc;
int id = pdata->regulators[i].id;
int index = id - MAX8998_LDO2;
desc = ldo_voltage_map[id];
if (desc && regulators[index].ops != &max8998_others_ops) {
int count = (desc->max - desc->min) / desc->step + 1;
regulators[index].n_voltages = count;
regulators[index].min_uV = desc->min;
regulators[index].uV_step = desc->step;
}
int index = pdata->regulators[i].id - MAX8998_LDO2;
config.dev = max8998->dev;
config.of_node = pdata->regulators[i].reg_node;
@ -867,7 +686,6 @@ static int max8998_pmic_probe(struct platform_device *pdev)
}
}
return 0;
}