54 static void __iomem *wdt_addr(struct qcom_wdt *wdt, enum wdt_reg reg)  in wdt_addr()  argument
56 	return wdt->base + wdt->layout[reg];  in wdt_addr()
76 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_start()  local
79 	writel(0, wdt_addr(wdt, WDT_EN));  in qcom_wdt_start()
80 	writel(1, wdt_addr(wdt, WDT_RST));  in qcom_wdt_start()
81 	writel(bark * wdt->rate, wdt_addr(wdt, WDT_BARK_TIME));  in qcom_wdt_start()
82 	writel(wdd->timeout * wdt->rate, wdt_addr(wdt, WDT_BITE_TIME));  in qcom_wdt_start()
83 	writel(QCOM_WDT_ENABLE, wdt_addr(wdt, WDT_EN));  in qcom_wdt_start()
89 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_stop()  local
91 	writel(0, wdt_addr(wdt, WDT_EN));  in qcom_wdt_stop()
97 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_ping()  local
99 	writel(1, wdt_addr(wdt, WDT_RST));  in qcom_wdt_ping()
120 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_restart()  local
125 	 *    Setup BITE_TIME to be 128ms, and enable WDT.  in qcom_wdt_restart()
127 	timeout = 128 * wdt->rate / 1000;  in qcom_wdt_restart()
129 	writel(0, wdt_addr(wdt, WDT_EN));  in qcom_wdt_restart()
130 	writel(1, wdt_addr(wdt, WDT_RST));  in qcom_wdt_restart()
131 	writel(timeout, wdt_addr(wdt, WDT_BARK_TIME));  in qcom_wdt_restart()
132 	writel(timeout, wdt_addr(wdt, WDT_BITE_TIME));  in qcom_wdt_restart()
133 	writel(QCOM_WDT_ENABLE, wdt_addr(wdt, WDT_EN));  in qcom_wdt_restart()
189 	struct qcom_wdt *wdt;  in qcom_wdt_probe()  local
199 		dev_err(dev, "Unsupported QCOM WDT module\n");  in qcom_wdt_probe()
203 	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);  in qcom_wdt_probe()
204 	if (!wdt)  in qcom_wdt_probe()
218 	wdt->base = devm_ioremap_resource(dev, res);  in qcom_wdt_probe()
219 	if (IS_ERR(wdt->base))  in qcom_wdt_probe()
220 		return PTR_ERR(wdt->base);  in qcom_wdt_probe()
241 	 * WATCHDOG_CORE assumes units of seconds, if the WDT is clocked such  in qcom_wdt_probe()
245 	wdt->rate = clk_get_rate(clk);  in qcom_wdt_probe()
246 	if (wdt->rate == 0 ||  in qcom_wdt_probe()
247 	    wdt->rate > 0x10000000U) {  in qcom_wdt_probe()
256 				       "wdt_bark", &wdt->wdd);  in qcom_wdt_probe()
260 		wdt->wdd.info = &qcom_wdt_pt_info;  in qcom_wdt_probe()
261 		wdt->wdd.pretimeout = 1;  in qcom_wdt_probe()
266 		wdt->wdd.info = &qcom_wdt_info;  in qcom_wdt_probe()
269 	wdt->wdd.ops = &qcom_wdt_ops;  in qcom_wdt_probe()
270 	wdt->wdd.min_timeout = 1;  in qcom_wdt_probe()
271 	wdt->wdd.max_timeout = 0x10000000U / wdt->rate;  in qcom_wdt_probe()
272 	wdt->wdd.parent = dev;  in qcom_wdt_probe()
273 	wdt->layout = data->offset;  in qcom_wdt_probe()
275 	if (readl(wdt_addr(wdt, WDT_STS)) & 1)  in qcom_wdt_probe()
276 		wdt->wdd.bootstatus = WDIOF_CARDRESET;  in qcom_wdt_probe()
283 	wdt->wdd.timeout = min(wdt->wdd.max_timeout, 30U);  in qcom_wdt_probe()
284 	watchdog_init_timeout(&wdt->wdd, 0, dev);  in qcom_wdt_probe()
286 	ret = devm_watchdog_register_device(dev, &wdt->wdd);  in qcom_wdt_probe()
290 	platform_set_drvdata(pdev, wdt);  in qcom_wdt_probe()
296 	struct qcom_wdt *wdt = dev_get_drvdata(dev);  in qcom_wdt_suspend()  local
298 	if (watchdog_active(&wdt->wdd))  in qcom_wdt_suspend()
299 		qcom_wdt_stop(&wdt->wdd);  in qcom_wdt_suspend()
306 	struct qcom_wdt *wdt = dev_get_drvdata(dev);  in qcom_wdt_resume()  local
308 	if (watchdog_active(&wdt->wdd))  in qcom_wdt_resume()
309 		qcom_wdt_start(&wdt->wdd);  in qcom_wdt_resume()
319 	{ .compatible = "qcom,kpss-wdt", .data = &match_data_kpss },