drivers/watchdog/cgbc_wdt.c

57 	struct watchdog_device	wdd;
72 static int cgbc_wdt_start(struct watchdog_device *wdd)
74 	struct cgbc_wdt_data *wdt_data = watchdog_get_drvdata(wdd);
76 	unsigned int timeout1 = (wdd->timeout - wdd->pretimeout) * 1000;
77 	unsigned int timeout2 = wdd->pretimeout * 1000;
91 	if (wdd->pretimeout) {
105 static int cgbc_wdt_stop(struct watchdog_device *wdd)
107 	struct cgbc_wdt_data *wdt_data = watchdog_get_drvdata(wdd);
117 static int cgbc_wdt_keepalive(struct watchdog_device *wdd)
119 	struct cgbc_wdt_data *wdt_data = watchdog_get_drvdata(wdd);
126 static int cgbc_wdt_set_pretimeout(struct watchdog_device *wdd,
129 	wdd->pretimeout = pretimeout;
131 	if (watchdog_active(wdd))
132 		return cgbc_wdt_start(wdd);
137 static int cgbc_wdt_set_timeout(struct watchdog_device *wdd,
140 	if (timeout < wdd->pretimeout)
141 		wdd->pretimeout = 0;
143 	wdd->timeout = timeout;
145 	if (watchdog_active(wdd))
146 		return cgbc_wdt_start(wdd);
171 	struct watchdog_device *wdd;
178 	wdd = &wdt_data->wdd;
179 	wdd->parent = dev;
181 	wdd->info = &cgbc_wdt_info;
182 	wdd->ops = &cgbc_wdt_ops;
183 	wdd->max_timeout = CGBC_WDT_MAX_TIMEOUT;
184 	wdd->min_timeout = CGBC_WDT_MIN_TIMEOUT;
186 	watchdog_set_drvdata(wdd, wdt_data);
187 	watchdog_set_nowayout(wdd, nowayout);
189 	wdd->timeout = CGBC_WDT_DEFAULT_TIMEOUT;
190 	watchdog_init_timeout(wdd, timeout, dev);
191 	cgbc_wdt_set_pretimeout(wdd, pretimeout);
194 	watchdog_stop_on_reboot(wdd);
195 	watchdog_stop_on_unregister(wdd);
197 	return devm_watchdog_register_device(dev, wdd);