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regulator: pwm: No need to make a copy of regulator_ops per instance 

Having instance specific copy of desc is enough to support multiple
instance of pwm regulator.
The regulator_ops is never changed so no need to copy it per instance, make
pwm_regulator_voltage_table_ops and pwm_regulator_voltage_continuous_ops
const to ensure they won't be changed.
The pwm_regulator_desc is a template to be copied so also make it const.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Axel Lin 2019-01-12 12:30:13 +08:00 committed by Mark Brown
parent 08f0b14adc
commit 638aef7a77
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 12 deletions
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17
drivers/regulator/pwm-regulator.c
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@ -40,9 +40,6 @@ struct pwm_regulator_data {
/* regulator descriptor */
struct regulator_desc desc;
/* Regulator ops */
struct regulator_ops ops;
int state;
/* Enable GPIO */
@ -231,7 +228,7 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev,
return 0;
}
static struct regulator_ops pwm_regulator_voltage_table_ops = {
static const struct regulator_ops pwm_regulator_voltage_table_ops = {
.set_voltage_sel = pwm_regulator_set_voltage_sel,
.get_voltage_sel = pwm_regulator_get_voltage_sel,
.list_voltage = pwm_regulator_list_voltage,
@ -241,7 +238,7 @@ static struct regulator_ops pwm_regulator_voltage_table_ops = {
.is_enabled = pwm_regulator_is_enabled,
};
static struct regulator_ops pwm_regulator_voltage_continuous_ops = {
static const struct regulator_ops pwm_regulator_voltage_continuous_ops = {
.get_voltage = pwm_regulator_get_voltage,
.set_voltage = pwm_regulator_set_voltage,
.enable = pwm_regulator_enable,
@ -249,7 +246,7 @@ static struct regulator_ops pwm_regulator_voltage_continuous_ops = {
.is_enabled = pwm_regulator_is_enabled,
};
static struct regulator_desc pwm_regulator_desc = {
static const struct regulator_desc pwm_regulator_desc = {
.name = "pwm-regulator",
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
@ -287,9 +284,7 @@ static int pwm_regulator_init_table(struct platform_device *pdev,
drvdata->state = -EINVAL;
drvdata->duty_cycle_table = duty_cycle_table;
memcpy(&drvdata->ops, &pwm_regulator_voltage_table_ops,
sizeof(drvdata->ops));
drvdata->desc.ops = &drvdata->ops;
drvdata->desc.ops = &pwm_regulator_voltage_table_ops;
drvdata->desc.n_voltages = length / sizeof(*duty_cycle_table);
return 0;
@ -301,9 +296,7 @@ static int pwm_regulator_init_continuous(struct platform_device *pdev,
u32 dutycycle_range[2] = { 0, 100 };
u32 dutycycle_unit = 100;
memcpy(&drvdata->ops, &pwm_regulator_voltage_continuous_ops,
sizeof(drvdata->ops));
drvdata->desc.ops = &drvdata->ops;
drvdata->desc.ops = &pwm_regulator_voltage_continuous_ops;
drvdata->desc.continuous_voltage_range = true;
of_property_read_u32_array(pdev->dev.of_node,