Lines Matching refs:wdev
71 static void omap_wdt_reload(struct omap_wdt_dev *wdev) in omap_wdt_reload() argument
73 void __iomem *base = wdev->base; in omap_wdt_reload()
79 wdev->wdt_trgr_pattern = ~wdev->wdt_trgr_pattern; in omap_wdt_reload()
80 writel_relaxed(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR)); in omap_wdt_reload()
88 static void omap_wdt_enable(struct omap_wdt_dev *wdev) in omap_wdt_enable() argument
90 void __iomem *base = wdev->base; in omap_wdt_enable()
102 static void omap_wdt_disable(struct omap_wdt_dev *wdev) in omap_wdt_disable() argument
104 void __iomem *base = wdev->base; in omap_wdt_disable()
116 static void omap_wdt_set_timer(struct omap_wdt_dev *wdev, in omap_wdt_set_timer() argument
120 void __iomem *base = wdev->base; in omap_wdt_set_timer()
133 struct omap_wdt_dev *wdev = to_omap_wdt_dev(wdog); in omap_wdt_start() local
134 void __iomem *base = wdev->base; in omap_wdt_start()
136 mutex_lock(&wdev->lock); in omap_wdt_start()
138 wdev->omap_wdt_users = true; in omap_wdt_start()
140 pm_runtime_get_sync(wdev->dev); in omap_wdt_start()
147 omap_wdt_disable(wdev); in omap_wdt_start()
157 omap_wdt_set_timer(wdev, wdog->timeout); in omap_wdt_start()
158 omap_wdt_reload(wdev); /* trigger loading of new timeout value */ in omap_wdt_start()
159 omap_wdt_enable(wdev); in omap_wdt_start()
161 mutex_unlock(&wdev->lock); in omap_wdt_start()
168 struct omap_wdt_dev *wdev = to_omap_wdt_dev(wdog); in omap_wdt_stop() local
170 mutex_lock(&wdev->lock); in omap_wdt_stop()
171 omap_wdt_disable(wdev); in omap_wdt_stop()
172 pm_runtime_put_sync(wdev->dev); in omap_wdt_stop()
173 wdev->omap_wdt_users = false; in omap_wdt_stop()
174 mutex_unlock(&wdev->lock); in omap_wdt_stop()
180 struct omap_wdt_dev *wdev = to_omap_wdt_dev(wdog); in omap_wdt_ping() local
182 mutex_lock(&wdev->lock); in omap_wdt_ping()
183 omap_wdt_reload(wdev); in omap_wdt_ping()
184 mutex_unlock(&wdev->lock); in omap_wdt_ping()
192 struct omap_wdt_dev *wdev = to_omap_wdt_dev(wdog); in omap_wdt_set_timeout() local
194 mutex_lock(&wdev->lock); in omap_wdt_set_timeout()
195 omap_wdt_disable(wdev); in omap_wdt_set_timeout()
196 omap_wdt_set_timer(wdev, timeout); in omap_wdt_set_timeout()
197 omap_wdt_enable(wdev); in omap_wdt_set_timeout()
198 omap_wdt_reload(wdev); in omap_wdt_set_timeout()
200 mutex_unlock(&wdev->lock); in omap_wdt_set_timeout()
207 struct omap_wdt_dev *wdev = to_omap_wdt_dev(wdog); in omap_wdt_get_timeleft() local
208 void __iomem *base = wdev->base; in omap_wdt_get_timeleft()
232 struct omap_wdt_dev *wdev; in omap_wdt_probe() local
235 wdev = devm_kzalloc(&pdev->dev, sizeof(*wdev), GFP_KERNEL); in omap_wdt_probe()
236 if (!wdev) in omap_wdt_probe()
239 wdev->omap_wdt_users = false; in omap_wdt_probe()
240 wdev->dev = &pdev->dev; in omap_wdt_probe()
241 wdev->wdt_trgr_pattern = 0x1234; in omap_wdt_probe()
242 mutex_init(&wdev->lock); in omap_wdt_probe()
245 wdev->base = devm_platform_ioremap_resource(pdev, 0); in omap_wdt_probe()
246 if (IS_ERR(wdev->base)) in omap_wdt_probe()
247 return PTR_ERR(wdev->base); in omap_wdt_probe()
249 wdev->wdog.info = &omap_wdt_info; in omap_wdt_probe()
250 wdev->wdog.ops = &omap_wdt_ops; in omap_wdt_probe()
251 wdev->wdog.min_timeout = TIMER_MARGIN_MIN; in omap_wdt_probe()
252 wdev->wdog.max_timeout = TIMER_MARGIN_MAX; in omap_wdt_probe()
253 wdev->wdog.timeout = TIMER_MARGIN_DEFAULT; in omap_wdt_probe()
254 wdev->wdog.parent = &pdev->dev; in omap_wdt_probe()
256 watchdog_init_timeout(&wdev->wdog, timer_margin, &pdev->dev); in omap_wdt_probe()
258 watchdog_set_nowayout(&wdev->wdog, nowayout); in omap_wdt_probe()
260 platform_set_drvdata(pdev, wdev); in omap_wdt_probe()
262 pm_runtime_enable(wdev->dev); in omap_wdt_probe()
263 pm_runtime_get_sync(wdev->dev); in omap_wdt_probe()
268 wdev->wdog.bootstatus = WDIOF_CARDRESET; in omap_wdt_probe()
272 omap_wdt_start(&wdev->wdog); in omap_wdt_probe()
273 set_bit(WDOG_HW_RUNNING, &wdev->wdog.status); in omap_wdt_probe()
275 omap_wdt_disable(wdev); in omap_wdt_probe()
278 ret = watchdog_register_device(&wdev->wdog); in omap_wdt_probe()
280 pm_runtime_put(wdev->dev); in omap_wdt_probe()
281 pm_runtime_disable(wdev->dev); in omap_wdt_probe()
286 readl_relaxed(wdev->base + OMAP_WATCHDOG_REV) & 0xFF, in omap_wdt_probe()
287 wdev->wdog.timeout); in omap_wdt_probe()
290 omap_wdt_start(&wdev->wdog); in omap_wdt_probe()
292 pm_runtime_put(wdev->dev); in omap_wdt_probe()
299 struct omap_wdt_dev *wdev = platform_get_drvdata(pdev); in omap_wdt_shutdown() local
301 mutex_lock(&wdev->lock); in omap_wdt_shutdown()
302 if (wdev->omap_wdt_users) { in omap_wdt_shutdown()
303 omap_wdt_disable(wdev); in omap_wdt_shutdown()
304 pm_runtime_put_sync(wdev->dev); in omap_wdt_shutdown()
306 mutex_unlock(&wdev->lock); in omap_wdt_shutdown()
311 struct omap_wdt_dev *wdev = platform_get_drvdata(pdev); in omap_wdt_remove() local
313 pm_runtime_disable(wdev->dev); in omap_wdt_remove()
314 watchdog_unregister_device(&wdev->wdog); in omap_wdt_remove()
327 struct omap_wdt_dev *wdev = platform_get_drvdata(pdev); in omap_wdt_suspend() local
329 mutex_lock(&wdev->lock); in omap_wdt_suspend()
330 if (wdev->omap_wdt_users) { in omap_wdt_suspend()
331 omap_wdt_disable(wdev); in omap_wdt_suspend()
332 pm_runtime_put_sync(wdev->dev); in omap_wdt_suspend()
334 mutex_unlock(&wdev->lock); in omap_wdt_suspend()
341 struct omap_wdt_dev *wdev = platform_get_drvdata(pdev); in omap_wdt_resume() local
343 mutex_lock(&wdev->lock); in omap_wdt_resume()
344 if (wdev->omap_wdt_users) { in omap_wdt_resume()
345 pm_runtime_get_sync(wdev->dev); in omap_wdt_resume()
346 omap_wdt_enable(wdev); in omap_wdt_resume()
347 omap_wdt_reload(wdev); in omap_wdt_resume()
349 mutex_unlock(&wdev->lock); in omap_wdt_resume()