66 	struct watchdog_device wdog;  member
111 static inline void imx2_wdt_setup(struct watchdog_device *wdog)  in imx2_wdt_setup()  argument
113 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_setup()
127 	val |= WDOG_SEC_TO_COUNT(wdog->timeout);  in imx2_wdt_setup()
145 static int imx2_wdt_ping(struct watchdog_device *wdog)  in imx2_wdt_ping()  argument
147 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_ping()
156 	struct watchdog_device *wdog = (struct watchdog_device *)arg;  in imx2_wdt_timer_ping()  local
157 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_timer_ping()
160 	imx2_wdt_ping(wdog);  in imx2_wdt_timer_ping()
161 	mod_timer(&wdev->timer, jiffies + wdog->timeout * HZ / 2);  in imx2_wdt_timer_ping()
164 static int imx2_wdt_set_timeout(struct watchdog_device *wdog,  in imx2_wdt_set_timeout()  argument
167 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_set_timeout()
169 	wdog->timeout = new_timeout;  in imx2_wdt_set_timeout()
176 static int imx2_wdt_start(struct watchdog_device *wdog)  in imx2_wdt_start()  argument
178 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_start()
183 		imx2_wdt_set_timeout(wdog, wdog->timeout);  in imx2_wdt_start()
185 		imx2_wdt_setup(wdog);  in imx2_wdt_start()
187 	return imx2_wdt_ping(wdog);  in imx2_wdt_start()
190 static int imx2_wdt_stop(struct watchdog_device *wdog)  in imx2_wdt_stop()  argument
196 	imx2_wdt_timer_ping((unsigned long)wdog);  in imx2_wdt_stop()
200 static inline void imx2_wdt_ping_if_active(struct watchdog_device *wdog)  in imx2_wdt_ping_if_active()  argument
202 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_ping_if_active()
205 		imx2_wdt_set_timeout(wdog, wdog->timeout);  in imx2_wdt_ping_if_active()
206 		imx2_wdt_timer_ping((unsigned long)wdog);  in imx2_wdt_ping_if_active()
228 	struct watchdog_device *wdog;  in imx2_wdt_probe()  local
256 	wdog			= &wdev->wdog;  in imx2_wdt_probe()
257 	wdog->info		= &imx2_wdt_info;  in imx2_wdt_probe()
258 	wdog->ops		= &imx2_wdt_ops;  in imx2_wdt_probe()
259 	wdog->min_timeout	= 1;  in imx2_wdt_probe()
260 	wdog->max_timeout	= IMX2_WDT_MAX_TIME;  in imx2_wdt_probe()
261 	wdog->parent		= &pdev->dev;  in imx2_wdt_probe()
268 	wdog->bootstatus = val & IMX2_WDT_WRSR_TOUT ? WDIOF_CARDRESET : 0;  in imx2_wdt_probe()
270 	wdog->timeout = clamp_t(unsigned, timeout, 1, IMX2_WDT_MAX_TIME);  in imx2_wdt_probe()
271 	if (wdog->timeout != timeout)  in imx2_wdt_probe()
273 			 timeout, wdog->timeout);  in imx2_wdt_probe()
275 	platform_set_drvdata(pdev, wdog);  in imx2_wdt_probe()
276 	watchdog_set_drvdata(wdog, wdev);  in imx2_wdt_probe()
277 	watchdog_set_nowayout(wdog, nowayout);  in imx2_wdt_probe()
278 	watchdog_init_timeout(wdog, timeout, &pdev->dev);  in imx2_wdt_probe()
280 	setup_timer(&wdev->timer, imx2_wdt_timer_ping, (unsigned long)wdog);  in imx2_wdt_probe()
282 	imx2_wdt_ping_if_active(wdog);  in imx2_wdt_probe()
291 	ret = watchdog_register_device(wdog);  in imx2_wdt_probe()
304 		 wdog->timeout, nowayout);  in imx2_wdt_probe()
315 	struct watchdog_device *wdog = platform_get_drvdata(pdev);  in imx2_wdt_remove()  local
316 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_remove()
320 	watchdog_unregister_device(wdog);  in imx2_wdt_remove()
324 		imx2_wdt_ping(wdog);  in imx2_wdt_remove()
332 	struct watchdog_device *wdog = platform_get_drvdata(pdev);  in imx2_wdt_shutdown()  local
333 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_shutdown()
341 		imx2_wdt_set_timeout(wdog, IMX2_WDT_MAX_TIME);  in imx2_wdt_shutdown()
342 		imx2_wdt_ping(wdog);  in imx2_wdt_shutdown()
351 	struct watchdog_device *wdog = dev_get_drvdata(dev);  in imx2_wdt_suspend()  local
352 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_suspend()
356 		imx2_wdt_set_timeout(wdog, IMX2_WDT_MAX_TIME);  in imx2_wdt_suspend()
357 		imx2_wdt_ping(wdog);  in imx2_wdt_suspend()
360 		if (!watchdog_active(wdog))  in imx2_wdt_suspend()
372 	struct watchdog_device *wdog = dev_get_drvdata(dev);  in imx2_wdt_resume()  local
373 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_resume()
380 	if (watchdog_active(wdog) && !imx2_wdt_is_running(wdev)) {  in imx2_wdt_resume()
386 		imx2_wdt_setup(wdog);  in imx2_wdt_resume()
387 		imx2_wdt_set_timeout(wdog, wdog->timeout);  in imx2_wdt_resume()
388 		imx2_wdt_ping(wdog);  in imx2_wdt_resume()
391 		imx2_wdt_set_timeout(wdog, wdog->timeout);  in imx2_wdt_resume()
392 		imx2_wdt_ping(wdog);  in imx2_wdt_resume()
397 		if (!watchdog_active(wdog))  in imx2_wdt_resume()
399 				  jiffies + wdog->timeout * HZ / 2);  in imx2_wdt_resume()