RLR_MAX 98 drivers/watchdog/stm32_iwdg.c presc = DIV_ROUND_UP(tout * wdt->rate, RLR_MAX + 1); RLR_MAX 258 drivers/watchdog/stm32_iwdg.c wdd->max_hw_heartbeat_ms = ((RLR_MAX + 1) * wdt->data->max_prescaler *