85 	struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);  in wdt_is_running()  local
86 	u32 wdtcontrol = readl_relaxed(wdt->base + WDTCONTROL);  in wdt_is_running()
94 	struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);  in wdt_setload()  local
97 	rate = wdt->rate;  in wdt_setload()
110 	spin_lock(&wdt->lock);  in wdt_setload()
111 	wdt->load_val = load;  in wdt_setload()
114 	spin_unlock(&wdt->lock);  in wdt_setload()
122 	struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);  in wdt_timeleft()  local
125 	spin_lock(&wdt->lock);  in wdt_timeleft()
126 	load = readl_relaxed(wdt->base + WDTVALUE);  in wdt_timeleft()
129 	if (!(readl_relaxed(wdt->base + WDTRIS) & INT_MASK))  in wdt_timeleft()
130 		load += wdt->load_val + 1;  in wdt_timeleft()
131 	spin_unlock(&wdt->lock);  in wdt_timeleft()
133 	return div_u64(load, wdt->rate);  in wdt_timeleft()
139 	struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);  in wdt_restart()  local
141 	writel_relaxed(UNLOCK, wdt->base + WDTLOCK);  in wdt_restart()
142 	writel_relaxed(0, wdt->base + WDTCONTROL);  in wdt_restart()
143 	writel_relaxed(0, wdt->base + WDTLOAD);  in wdt_restart()
144 	writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base + WDTCONTROL);  in wdt_restart()
147 	readl_relaxed(wdt->base + WDTLOCK);  in wdt_restart()
154 	struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);  in wdt_config()  local
159 		ret = clk_prepare_enable(wdt->clk);  in wdt_config()
161 			dev_err(&wdt->adev->dev, "clock enable fail");  in wdt_config()
166 	spin_lock(&wdt->lock);  in wdt_config()
168 	writel_relaxed(UNLOCK, wdt->base + WDTLOCK);  in wdt_config()
169 	writel_relaxed(wdt->load_val, wdt->base + WDTLOAD);  in wdt_config()
170 	writel_relaxed(INT_MASK, wdt->base + WDTINTCLR);  in wdt_config()
173 		writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base +  in wdt_config()
176 	writel_relaxed(LOCK, wdt->base + WDTLOCK);  in wdt_config()
179 	readl_relaxed(wdt->base + WDTLOCK);  in wdt_config()
180 	spin_unlock(&wdt->lock);  in wdt_config()
199 	struct sp805_wdt *wdt = watchdog_get_drvdata(wdd);  in wdt_disable()  local
201 	spin_lock(&wdt->lock);  in wdt_disable()
203 	writel_relaxed(UNLOCK, wdt->base + WDTLOCK);  in wdt_disable()
204 	writel_relaxed(0, wdt->base + WDTCONTROL);  in wdt_disable()
205 	writel_relaxed(LOCK, wdt->base + WDTLOCK);  in wdt_disable()
208 	readl_relaxed(wdt->base + WDTLOCK);  in wdt_disable()
209 	spin_unlock(&wdt->lock);  in wdt_disable()
211 	clk_disable_unprepare(wdt->clk);  in wdt_disable()
234 	struct sp805_wdt *wdt;  in sp805_wdt_probe()  local
238 	wdt = devm_kzalloc(&adev->dev, sizeof(*wdt), GFP_KERNEL);  in sp805_wdt_probe()
239 	if (!wdt) {  in sp805_wdt_probe()
244 	wdt->base = devm_ioremap_resource(&adev->dev, &adev->res);  in sp805_wdt_probe()
245 	if (IS_ERR(wdt->base))  in sp805_wdt_probe()
246 		return PTR_ERR(wdt->base);  in sp805_wdt_probe()
255 	wdt->clk = devm_clk_get_optional(&adev->dev, NULL);  in sp805_wdt_probe()
256 	if (IS_ERR(wdt->clk))  in sp805_wdt_probe()
257 		return dev_err_probe(&adev->dev, PTR_ERR(wdt->clk), "Clock not found\n");  in sp805_wdt_probe()
259 	wdt->rate = clk_get_rate(wdt->clk);  in sp805_wdt_probe()
260 	if (!wdt->rate)  in sp805_wdt_probe()
261 		wdt->rate = rate;  in sp805_wdt_probe()
262 	if (!wdt->rate) {  in sp805_wdt_probe()
267 	wdt->adev = adev;  in sp805_wdt_probe()
268 	wdt->wdd.info = &wdt_info;  in sp805_wdt_probe()
269 	wdt->wdd.ops = &wdt_ops;  in sp805_wdt_probe()
270 	wdt->wdd.parent = &adev->dev;  in sp805_wdt_probe()
272 	spin_lock_init(&wdt->lock);  in sp805_wdt_probe()
273 	watchdog_set_nowayout(&wdt->wdd, nowayout);  in sp805_wdt_probe()
274 	watchdog_set_drvdata(&wdt->wdd, wdt);  in sp805_wdt_probe()
275 	watchdog_set_restart_priority(&wdt->wdd, 128);  in sp805_wdt_probe()
276 	watchdog_stop_on_unregister(&wdt->wdd);  in sp805_wdt_probe()
282 	wdt->wdd.timeout = DEFAULT_TIMEOUT;  in sp805_wdt_probe()
283 	watchdog_init_timeout(&wdt->wdd, 0, &adev->dev);  in sp805_wdt_probe()
284 	wdt_setload(&wdt->wdd, wdt->wdd.timeout);  in sp805_wdt_probe()
290 	if (wdt_is_running(&wdt->wdd)) {  in sp805_wdt_probe()
291 		wdt_enable(&wdt->wdd);  in sp805_wdt_probe()
292 		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);  in sp805_wdt_probe()
295 	watchdog_stop_on_reboot(&wdt->wdd);  in sp805_wdt_probe()
296 	ret = watchdog_register_device(&wdt->wdd);  in sp805_wdt_probe()
299 	amba_set_drvdata(adev, wdt);  in sp805_wdt_probe()
311 	struct sp805_wdt *wdt = amba_get_drvdata(adev);  in sp805_wdt_remove()  local
313 	watchdog_unregister_device(&wdt->wdd);  in sp805_wdt_remove()
314 	watchdog_set_drvdata(&wdt->wdd, NULL);  in sp805_wdt_remove()
319 	struct sp805_wdt *wdt = dev_get_drvdata(dev);  in sp805_wdt_suspend()  local
321 	if (watchdog_active(&wdt->wdd))  in sp805_wdt_suspend()
322 		return wdt_disable(&wdt->wdd);  in sp805_wdt_suspend()
329 	struct sp805_wdt *wdt = dev_get_drvdata(dev);  in sp805_wdt_resume()  local
331 	if (watchdog_active(&wdt->wdd))  in sp805_wdt_resume()
332 		return wdt_enable(&wdt->wdd);  in sp805_wdt_resume()