}
if (rdev->ena_pin) {
- ret = regulator_ena_gpio_ctrl(rdev, true);
- if (ret < 0)
- return ret;
- rdev->ena_gpio_state = 1;
+ if (!rdev->ena_gpio_state) {
+ ret = regulator_ena_gpio_ctrl(rdev, true);
+ if (ret < 0)
+ return ret;
+ rdev->ena_gpio_state = 1;
+ }
} else if (rdev->desc->ops->enable) {
ret = rdev->desc->ops->enable(rdev);
if (ret < 0)
trace_regulator_disable(rdev_get_name(rdev));
if (rdev->ena_pin) {
- ret = regulator_ena_gpio_ctrl(rdev, false);
- if (ret < 0)
- return ret;
- rdev->ena_gpio_state = 0;
+ if (rdev->ena_gpio_state) {
+ ret = regulator_ena_gpio_ctrl(rdev, false);
+ if (ret < 0)
+ return ret;
+ rdev->ena_gpio_state = 0;
+ }
} else if (rdev->desc->ops->disable) {
ret = rdev->desc->ops->disable(rdev);
if (attr == &dev_attr_requested_microamps.attr)
return rdev->desc->type == REGULATOR_CURRENT ? mode : 0;
- /* all the other attributes exist to support constraints;
- * don't show them if there are no constraints, or if the
- * relevant supporting methods are missing.
- */
- if (!rdev->constraints)
- return 0;
-
/* constraints need specific supporting methods */
if (attr == &dev_attr_min_microvolts.attr ||
attr == &dev_attr_max_microvolts.attr)
config->ena_gpio, ret);
goto wash;
}
-
- if (config->ena_gpio_flags & GPIOF_OUT_INIT_HIGH)
- rdev->ena_gpio_state = 1;
-
- if (config->ena_gpio_invert)
- rdev->ena_gpio_state = !rdev->ena_gpio_state;
}
/* set regulator constraints */
list_for_each_entry(rdev, ®ulator_list, list) {
mutex_lock(&rdev->mutex);
if (rdev->use_count > 0 || rdev->constraints->always_on) {
- error = _regulator_do_enable(rdev);
- if (error)
- ret = error;
+ if (!_regulator_is_enabled(rdev)) {
+ error = _regulator_do_enable(rdev);
+ if (error)
+ ret = error;
+ }
} else {
if (!have_full_constraints())
goto unlock;