55 static void __iomem *wdt_addr(struct qcom_wdt *wdt, enum wdt_reg reg)  in wdt_addr()  argument
57 	return wdt->base + wdt->layout[reg];  in wdt_addr()
87 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_start()  local
90 	writel(0, wdt_addr(wdt, WDT_EN));  in qcom_wdt_start()
91 	writel(1, wdt_addr(wdt, WDT_RST));  in qcom_wdt_start()
92 	writel(bark * wdt->rate, wdt_addr(wdt, WDT_BARK_TIME));  in qcom_wdt_start()
93 	writel(wdd->timeout * wdt->rate, wdt_addr(wdt, WDT_BITE_TIME));  in qcom_wdt_start()
94 	writel(qcom_get_enable(wdd), wdt_addr(wdt, WDT_EN));  in qcom_wdt_start()
100 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_stop()  local
102 	writel(0, wdt_addr(wdt, WDT_EN));  in qcom_wdt_stop()
108 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_ping()  local
110 	writel(1, wdt_addr(wdt, WDT_RST));  in qcom_wdt_ping()
131 	struct qcom_wdt *wdt = to_qcom_wdt(wdd);  in qcom_wdt_restart()  local
136 	 *    Setup BITE_TIME to be 128ms, and enable WDT.  in qcom_wdt_restart()
138 	timeout = 128 * wdt->rate / 1000;  in qcom_wdt_restart()
140 	writel(0, wdt_addr(wdt, WDT_EN));  in qcom_wdt_restart()
141 	writel(1, wdt_addr(wdt, WDT_RST));  in qcom_wdt_restart()
142 	writel(timeout, wdt_addr(wdt, WDT_BARK_TIME));  in qcom_wdt_restart()
143 	writel(timeout, wdt_addr(wdt, WDT_BITE_TIME));  in qcom_wdt_restart()
144 	writel(QCOM_WDT_ENABLE, wdt_addr(wdt, WDT_EN));  in qcom_wdt_restart()
200 	struct qcom_wdt *wdt;  in qcom_wdt_probe()  local
210 		dev_err(dev, "Unsupported QCOM WDT module\n");  in qcom_wdt_probe()
214 	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);  in qcom_wdt_probe()
215 	if (!wdt)  in qcom_wdt_probe()
229 	wdt->base = devm_ioremap_resource(dev, res);  in qcom_wdt_probe()
230 	if (IS_ERR(wdt->base))  in qcom_wdt_probe()
231 		return PTR_ERR(wdt->base);  in qcom_wdt_probe()
252 	 * WATCHDOG_CORE assumes units of seconds, if the WDT is clocked such  in qcom_wdt_probe()
256 	wdt->rate = clk_get_rate(clk);  in qcom_wdt_probe()
257 	if (wdt->rate == 0 ||  in qcom_wdt_probe()
258 	    wdt->rate > 0x10000000U) {  in qcom_wdt_probe()
267 				       "wdt_bark", &wdt->wdd);  in qcom_wdt_probe()
271 		wdt->wdd.info = &qcom_wdt_pt_info;  in qcom_wdt_probe()
272 		wdt->wdd.pretimeout = 1;  in qcom_wdt_probe()
277 		wdt->wdd.info = &qcom_wdt_info;  in qcom_wdt_probe()
280 	wdt->wdd.ops = &qcom_wdt_ops;  in qcom_wdt_probe()
281 	wdt->wdd.min_timeout = 1;  in qcom_wdt_probe()
282 	wdt->wdd.max_timeout = 0x10000000U / wdt->rate;  in qcom_wdt_probe()
283 	wdt->wdd.parent = dev;  in qcom_wdt_probe()
284 	wdt->layout = data->offset;  in qcom_wdt_probe()
286 	if (readl(wdt_addr(wdt, WDT_STS)) & 1)  in qcom_wdt_probe()
287 		wdt->wdd.bootstatus = WDIOF_CARDRESET;  in qcom_wdt_probe()
294 	wdt->wdd.timeout = min(wdt->wdd.max_timeout, 30U);  in qcom_wdt_probe()
295 	watchdog_init_timeout(&wdt->wdd, 0, dev);  in qcom_wdt_probe()
297 	ret = devm_watchdog_register_device(dev, &wdt->wdd);  in qcom_wdt_probe()
301 	platform_set_drvdata(pdev, wdt);  in qcom_wdt_probe()
307 	struct qcom_wdt *wdt = dev_get_drvdata(dev);  in qcom_wdt_suspend()  local
309 	if (watchdog_active(&wdt->wdd))  in qcom_wdt_suspend()
310 		qcom_wdt_stop(&wdt->wdd);  in qcom_wdt_suspend()
317 	struct qcom_wdt *wdt = dev_get_drvdata(dev);  in qcom_wdt_resume()  local
319 	if (watchdog_active(&wdt->wdd))  in qcom_wdt_resume()
320 		qcom_wdt_start(&wdt->wdd);  in qcom_wdt_resume()
330 	{ .compatible = "qcom,kpss-wdt", .data = &match_data_kpss },