STM32_LPTIM_WAVPOL
((FIELD_GET(STM32_LPTIM_WAVPOL, cfgr) != state->polarity) && !priv->num_cc_chans)) {
val |= FIELD_PREP(STM32_LPTIM_WAVPOL, state->polarity);
mask |= STM32_LPTIM_WAVPOL;
state->polarity = FIELD_GET(STM32_LPTIM_WAVPOL, val);