43 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_start()  local
45 	writel(0, wdt->base + WDT_EN);  in qcom_wdt_start()
46 	writel(1, wdt->base + WDT_RST);  in qcom_wdt_start()
47 	writel(wdd->timeout * wdt->rate, wdt->base + WDT_BITE_TIME);  in qcom_wdt_start()
48 	writel(1, wdt->base + WDT_EN);  in qcom_wdt_start()
54 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_stop()  local
56 	writel(0, wdt->base + WDT_EN);  in qcom_wdt_stop()
62 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_ping()  local
64 	writel(1, wdt->base + WDT_RST);  in qcom_wdt_ping()
93 	struct qcom_wdt *wdt = container_of(nb, struct qcom_wdt, restart_nb);  in qcom_wdt_restart()  local
100 	timeout = 128 * wdt->rate / 1000;  in qcom_wdt_restart()
102 	writel(0, wdt->base + WDT_EN);  in qcom_wdt_restart()
103 	writel(1, wdt->base + WDT_RST);  in qcom_wdt_restart()
104 	writel(timeout, wdt->base + WDT_BITE_TIME);  in qcom_wdt_restart()
105 	writel(1, wdt->base + WDT_EN);  in qcom_wdt_restart()
118 	struct qcom_wdt *wdt;  in qcom_wdt_probe()  local
124 	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);  in qcom_wdt_probe()
125 	if (!wdt)  in qcom_wdt_probe()
137 	wdt->base = devm_ioremap_resource(&pdev->dev, res);  in qcom_wdt_probe()
138 	if (IS_ERR(wdt->base))  in qcom_wdt_probe()
139 		return PTR_ERR(wdt->base);  in qcom_wdt_probe()
141 	wdt->clk = devm_clk_get(&pdev->dev, NULL);  in qcom_wdt_probe()
142 	if (IS_ERR(wdt->clk)) {  in qcom_wdt_probe()
144 		return PTR_ERR(wdt->clk);  in qcom_wdt_probe()
147 	ret = clk_prepare_enable(wdt->clk);  in qcom_wdt_probe()
161 	wdt->rate = clk_get_rate(wdt->clk);  in qcom_wdt_probe()
162 	if (wdt->rate == 0 ||  in qcom_wdt_probe()
163 	    wdt->rate > 0x10000000U) {  in qcom_wdt_probe()
169 	wdt->wdd.dev = &pdev->dev;  in qcom_wdt_probe()
170 	wdt->wdd.info = &qcom_wdt_info;  in qcom_wdt_probe()
171 	wdt->wdd.ops = &qcom_wdt_ops;  in qcom_wdt_probe()
172 	wdt->wdd.min_timeout = 1;  in qcom_wdt_probe()
173 	wdt->wdd.max_timeout = 0x10000000U / wdt->rate;  in qcom_wdt_probe()
180 	wdt->wdd.timeout = min(wdt->wdd.max_timeout, 30U);  in qcom_wdt_probe()
181 	watchdog_init_timeout(&wdt->wdd, 0, &pdev->dev);  in qcom_wdt_probe()
183 	ret = watchdog_register_device(&wdt->wdd);  in qcom_wdt_probe()
192 	wdt->restart_nb.notifier_call = qcom_wdt_restart;  in qcom_wdt_probe()
193 	ret = register_restart_handler(&wdt->restart_nb);  in qcom_wdt_probe()
197 	platform_set_drvdata(pdev, wdt);  in qcom_wdt_probe()
201 	clk_disable_unprepare(wdt->clk);  in qcom_wdt_probe()
207 	struct qcom_wdt *wdt = platform_get_drvdata(pdev);  in qcom_wdt_remove()  local
209 	unregister_restart_handler(&wdt->restart_nb);  in qcom_wdt_remove()
210 	watchdog_unregister_device(&wdt->wdd);  in qcom_wdt_remove()
211 	clk_disable_unprepare(wdt->clk);  in qcom_wdt_remove()