69 	struct watchdog_device	wdd;  member
87 static int stm32_iwdg_start(struct watchdog_device *wdd)  in stm32_iwdg_start()  argument
89 	struct stm32_iwdg *wdt = watchdog_get_drvdata(wdd);  in stm32_iwdg_start()
93 	dev_dbg(wdd->parent, "%s\n", __func__);  in stm32_iwdg_start()
95 	tout = clamp_t(unsigned int, wdd->timeout,  in stm32_iwdg_start()
96 		       wdd->min_timeout, wdd->max_hw_heartbeat_ms / 1000);  in stm32_iwdg_start()
118 		dev_err(wdd->parent, "Fail to set prescaler, reload regs\n");  in stm32_iwdg_start()
128 static int stm32_iwdg_ping(struct watchdog_device *wdd)  in stm32_iwdg_ping()  argument
130 	struct stm32_iwdg *wdt = watchdog_get_drvdata(wdd);  in stm32_iwdg_ping()
132 	dev_dbg(wdd->parent, "%s\n", __func__);  in stm32_iwdg_ping()
140 static int stm32_iwdg_set_timeout(struct watchdog_device *wdd,  in stm32_iwdg_set_timeout()  argument
143 	dev_dbg(wdd->parent, "%s timeout: %d sec\n", __func__, timeout);  in stm32_iwdg_set_timeout()
145 	wdd->timeout = timeout;  in stm32_iwdg_set_timeout()
147 	if (watchdog_active(wdd))  in stm32_iwdg_set_timeout()
148 		return stm32_iwdg_start(wdd);  in stm32_iwdg_set_timeout()
229 	struct watchdog_device *wdd;  in stm32_iwdg_probe()  local
253 	wdd = &wdt->wdd;  in stm32_iwdg_probe()
254 	wdd->parent = dev;  in stm32_iwdg_probe()
255 	wdd->info = &stm32_iwdg_info;  in stm32_iwdg_probe()
256 	wdd->ops = &stm32_iwdg_ops;  in stm32_iwdg_probe()
257 	wdd->min_timeout = DIV_ROUND_UP((RLR_MIN + 1) * PR_MIN, wdt->rate);  in stm32_iwdg_probe()
258 	wdd->max_hw_heartbeat_ms = ((RLR_MAX + 1) * wdt->data->max_prescaler *  in stm32_iwdg_probe()
261 	watchdog_set_drvdata(wdd, wdt);  in stm32_iwdg_probe()
262 	watchdog_set_nowayout(wdd, WATCHDOG_NOWAYOUT);  in stm32_iwdg_probe()
263 	watchdog_init_timeout(wdd, 0, dev);  in stm32_iwdg_probe()
275 		ret = stm32_iwdg_start(wdd);  in stm32_iwdg_probe()
280 		set_bit(WDOG_HW_RUNNING, &wdd->status);  in stm32_iwdg_probe()
283 	ret = devm_watchdog_register_device(dev, wdd);  in stm32_iwdg_probe()