Lines Matching refs:wdt
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
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()
146 struct qcom_wdt *wdt = to_qcom_wdt(wdd); in qcom_wdt_is_running() local
148 return (readl(wdt_addr(wdt, WDT_EN)) & QCOM_WDT_ENABLE); in qcom_wdt_is_running()
196 struct qcom_wdt *wdt; in qcom_wdt_probe() local
210 wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL); in qcom_wdt_probe()
211 if (!wdt) in qcom_wdt_probe()
225 wdt->base = devm_ioremap_resource(dev, res); in qcom_wdt_probe()
226 if (IS_ERR(wdt->base)) in qcom_wdt_probe()
227 return PTR_ERR(wdt->base); in qcom_wdt_probe()
252 wdt->rate = clk_get_rate(clk); in qcom_wdt_probe()
253 if (wdt->rate == 0 || in qcom_wdt_probe()
254 wdt->rate > 0x10000000U) { in qcom_wdt_probe()
263 "wdt_bark", &wdt->wdd); in qcom_wdt_probe()
267 wdt->wdd.info = &qcom_wdt_pt_info; in qcom_wdt_probe()
268 wdt->wdd.pretimeout = 1; in qcom_wdt_probe()
273 wdt->wdd.info = &qcom_wdt_info; in qcom_wdt_probe()
276 wdt->wdd.ops = &qcom_wdt_ops; in qcom_wdt_probe()
277 wdt->wdd.min_timeout = 1; in qcom_wdt_probe()
278 wdt->wdd.max_timeout = 0x10000000U / wdt->rate; in qcom_wdt_probe()
279 wdt->wdd.parent = dev; in qcom_wdt_probe()
280 wdt->layout = data->offset; in qcom_wdt_probe()
282 if (readl(wdt_addr(wdt, WDT_STS)) & 1) in qcom_wdt_probe()
283 wdt->wdd.bootstatus = WDIOF_CARDRESET; in qcom_wdt_probe()
290 wdt->wdd.timeout = min(wdt->wdd.max_timeout, 30U); in qcom_wdt_probe()
291 watchdog_init_timeout(&wdt->wdd, 0, dev); in qcom_wdt_probe()
299 if (qcom_wdt_is_running(&wdt->wdd)) { in qcom_wdt_probe()
300 qcom_wdt_start(&wdt->wdd); in qcom_wdt_probe()
301 set_bit(WDOG_HW_RUNNING, &wdt->wdd.status); in qcom_wdt_probe()
304 ret = devm_watchdog_register_device(dev, &wdt->wdd); in qcom_wdt_probe()
308 platform_set_drvdata(pdev, wdt); in qcom_wdt_probe()
314 struct qcom_wdt *wdt = dev_get_drvdata(dev); in qcom_wdt_suspend() local
316 if (watchdog_active(&wdt->wdd)) in qcom_wdt_suspend()
317 qcom_wdt_stop(&wdt->wdd); in qcom_wdt_suspend()
324 struct qcom_wdt *wdt = dev_get_drvdata(dev); in qcom_wdt_resume() local
326 if (watchdog_active(&wdt->wdd)) in qcom_wdt_resume()
327 qcom_wdt_start(&wdt->wdd); in qcom_wdt_resume()