struct device *dev;
struct lp855x_platform_data *pdata;
struct pwm_device *pwm;
+ bool needs_pwm_init;
struct regulator *supply; /* regulator for VDD input */
struct regulator *enable; /* regulator for EN/VDDIO input */
};
{
struct pwm_state state;
- pwm_get_state(lp->pwm, &state);
+ if (lp->needs_pwm_init) {
+ pwm_init_state(lp->pwm, &state);
+ /* Legacy platform data compatibility */
+ if (lp->pdata->period_ns > 0)
+ state.period = lp->pdata->period_ns;
+ lp->needs_pwm_init = false;
+ } else {
+ pwm_get_state(lp->pwm, &state);
+ }
state.duty_cycle = div_u64(br * state.period, max_br);
state.enabled = state.duty_cycle;
const struct i2c_device_id *id = i2c_client_get_device_id(cl);
const struct acpi_device_id *acpi_id = NULL;
struct device *dev = &cl->dev;
- struct pwm_state pwmstate;
struct lp855x *lp;
int ret;
else
return dev_err_probe(dev, ret, "getting PWM\n");
+ lp->needs_pwm_init = false;
lp->mode = REGISTER_BASED;
dev_dbg(dev, "mode: register based\n");
} else {
- pwm_init_state(lp->pwm, &pwmstate);
- /* Legacy platform data compatibility */
- if (lp->pdata->period_ns > 0)
- pwmstate.period = lp->pdata->period_ns;
- pwm_apply_state(lp->pwm, &pwmstate);
-
+ lp->needs_pwm_init = true;
lp->mode = PWM_BASED;
dev_dbg(dev, "mode: PWM based\n");
}