STM32_LPTIM_ISR
ret = regmap_read_poll_timeout_atomic(priv->reg, STM32_LPTIM_ISR, val,
ret = regmap_read_poll_timeout(priv->regmap, STM32_LPTIM_ISR, val,
ret = regmap_read_poll_timeout(priv->regmap, STM32_LPTIM_ISR, val, pwm->hwpwm ?