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regulator: anatop: Remove unneeded fields from struct anatop_regulator 

These fields are only used in anatop_regulator_probe() so use local
variables instead. The *initdata is not used so can be removed.
The *anatop is renamed to *regmap for better readability.
Use u32 instead of int for the variables used as third argument of
of_property_read_u32().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.2
Axel Lin 2019-04-10 00:10:39 +08:00 committed by Mark Brown
parent 6e1f22ee7e
commit f34a269229
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 27 additions and 36 deletions
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63
drivers/regulator/anatop-regulator.c
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@ -23,18 +23,10 @@
#define LDO_FET_FULL_ON 0x1f
struct anatop_regulator {
u32 control_reg;
struct regmap *anatop;
int vol_bit_shift;
int vol_bit_width;
u32 delay_reg;
int delay_bit_shift;
int delay_bit_width;
int min_bit_val;
int min_voltage;
int max_voltage;
struct regulator_desc rdesc;
struct regulator_init_data *initdata;
bool bypass;
int sel;
};
@ -55,7 +47,7 @@ static int anatop_regmap_set_voltage_time_sel(struct regulator_dev *reg,
* to calculate how many steps LDO need to
* ramp up, and how much delay needed. (us)
*/
regmap_read(anatop_reg->anatop, anatop_reg->delay_reg, &val);
regmap_read(reg->regmap, anatop_reg->delay_reg, &val);
val = (val >> anatop_reg->delay_bit_shift) &
((1 << anatop_reg->delay_bit_width) - 1);
ret = (new_sel - old_sel) * (LDO_RAMP_UP_UNIT_IN_CYCLES <<
@ -170,6 +162,13 @@ static int anatop_regulator_probe(struct platform_device *pdev)
struct anatop_regulator *sreg;
struct regulator_init_data *initdata;
struct regulator_config config = { };
struct regmap *regmap;
u32 control_reg;
u32 vol_bit_shift;
u32 vol_bit_width;
u32 min_bit_val;
u32 min_voltage;
u32 max_voltage;
int ret = 0;
u32 val;
@ -192,48 +191,41 @@ static int anatop_regulator_probe(struct platform_device *pdev)
return -ENOMEM;
initdata->supply_regulator = "vin";
sreg->initdata = initdata;
anatop_np = of_get_parent(np);
if (!anatop_np)
return -ENODEV;
sreg->anatop = syscon_node_to_regmap(anatop_np);
regmap = syscon_node_to_regmap(anatop_np);
of_node_put(anatop_np);
if (IS_ERR(sreg->anatop))
return PTR_ERR(sreg->anatop);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
ret = of_property_read_u32(np, "anatop-reg-offset",
&sreg->control_reg);
ret = of_property_read_u32(np, "anatop-reg-offset", &control_reg);
if (ret) {
dev_err(dev, "no anatop-reg-offset property set\n");
return ret;
}
ret = of_property_read_u32(np, "anatop-vol-bit-width",
&sreg->vol_bit_width);
ret = of_property_read_u32(np, "anatop-vol-bit-width", &vol_bit_width);
if (ret) {
dev_err(dev, "no anatop-vol-bit-width property set\n");
return ret;
}
ret = of_property_read_u32(np, "anatop-vol-bit-shift",
&sreg->vol_bit_shift);
ret = of_property_read_u32(np, "anatop-vol-bit-shift", &vol_bit_shift);
if (ret) {
dev_err(dev, "no anatop-vol-bit-shift property set\n");
return ret;
}
ret = of_property_read_u32(np, "anatop-min-bit-val",
&sreg->min_bit_val);
ret = of_property_read_u32(np, "anatop-min-bit-val", &min_bit_val);
if (ret) {
dev_err(dev, "no anatop-min-bit-val property set\n");
return ret;
}
ret = of_property_read_u32(np, "anatop-min-voltage",
&sreg->min_voltage);
ret = of_property_read_u32(np, "anatop-min-voltage", &min_voltage);
if (ret) {
dev_err(dev, "no anatop-min-voltage property set\n");
return ret;
}
ret = of_property_read_u32(np, "anatop-max-voltage",
&sreg->max_voltage);
ret = of_property_read_u32(np, "anatop-max-voltage", &max_voltage);
if (ret) {
dev_err(dev, "no anatop-max-voltage property set\n");
return ret;
@ -247,24 +239,23 @@ static int anatop_regulator_probe(struct platform_device *pdev)
of_property_read_u32(np, "anatop-delay-bit-shift",
&sreg->delay_bit_shift);
rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage) / 25000 + 1
+ sreg->min_bit_val;
rdesc->min_uV = sreg->min_voltage;
rdesc->n_voltages = (max_voltage - min_voltage) / 25000 + 1
+ min_bit_val;
rdesc->min_uV = min_voltage;
rdesc->uV_step = 25000;
rdesc->linear_min_sel = sreg->min_bit_val;
rdesc->vsel_reg = sreg->control_reg;
rdesc->vsel_mask = ((1 << sreg->vol_bit_width) - 1) <<
sreg->vol_bit_shift;
rdesc->linear_min_sel = min_bit_val;
rdesc->vsel_reg = control_reg;
rdesc->vsel_mask = ((1 << vol_bit_width) - 1) << vol_bit_shift;
rdesc->min_dropout_uV = 125000;
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = sreg;
config.of_node = pdev->dev.of_node;
config.regmap = sreg->anatop;
config.regmap = regmap;
/* Only core regulators have the ramp up delay configuration. */
if (sreg->control_reg && sreg->delay_bit_width) {
if (control_reg && sreg->delay_bit_width) {
rdesc->ops = &anatop_core_rops;
ret = regmap_read(config.regmap, rdesc->vsel_reg, &val);
@ -273,7 +264,7 @@ static int anatop_regulator_probe(struct platform_device *pdev)
return ret;
}
sreg->sel = (val & rdesc->vsel_mask) >> sreg->vol_bit_shift;
sreg->sel = (val & rdesc->vsel_mask) >> vol_bit_shift;
if (sreg->sel == LDO_FET_FULL_ON) {
sreg->sel = 0;
sreg->bypass = true;
@ -306,7 +297,7 @@ static int anatop_regulator_probe(struct platform_device *pdev)
anatop_rops.disable = regulator_disable_regmap;
anatop_rops.is_enabled = regulator_is_enabled_regmap;
rdesc->enable_reg = sreg->control_reg;
rdesc->enable_reg = control_reg;
rdesc->enable_mask = BIT(enable_bit);
}
}