52 static int cros_ec_wdt_ping(struct watchdog_device *wdd)  in cros_ec_wdt_ping()  argument
54 	struct cros_ec_device *cros_ec = watchdog_get_drvdata(wdd);  in cros_ec_wdt_ping()
61 		dev_dbg(wdd->parent, "Failed to ping watchdog (%d)", ret);  in cros_ec_wdt_ping()
66 static int cros_ec_wdt_start(struct watchdog_device *wdd)  in cros_ec_wdt_start()  argument
68 	struct cros_ec_device *cros_ec = watchdog_get_drvdata(wdd);  in cros_ec_wdt_start()
74 	arg.req.reboot_timeout_sec = wdd->timeout;  in cros_ec_wdt_start()
77 		dev_dbg(wdd->parent, "Failed to start watchdog (%d)", ret);  in cros_ec_wdt_start()
82 static int cros_ec_wdt_stop(struct watchdog_device *wdd)  in cros_ec_wdt_stop()  argument
84 	struct cros_ec_device *cros_ec = watchdog_get_drvdata(wdd);  in cros_ec_wdt_stop()
91 		dev_dbg(wdd->parent, "Failed to stop watchdog (%d)", ret);  in cros_ec_wdt_stop()
96 static int cros_ec_wdt_set_timeout(struct watchdog_device *wdd, unsigned int t)  in cros_ec_wdt_set_timeout()  argument
98 	unsigned int old_timeout = wdd->timeout;  in cros_ec_wdt_set_timeout()
101 	wdd->timeout = t;  in cros_ec_wdt_set_timeout()
102 	ret = cros_ec_wdt_start(wdd);  in cros_ec_wdt_set_timeout()
104 		wdd->timeout = old_timeout;  in cros_ec_wdt_set_timeout()
128 	struct watchdog_device *wdd;  in cros_ec_wdt_probe()  local
132 	wdd = devm_kzalloc(&pdev->dev, sizeof(*wdd), GFP_KERNEL);  in cros_ec_wdt_probe()
133 	if (!wdd)  in cros_ec_wdt_probe()
141 	wdd->parent = &pdev->dev;  in cros_ec_wdt_probe()
142 	wdd->info = &cros_ec_wdt_ident;  in cros_ec_wdt_probe()
143 	wdd->ops = &cros_ec_wdt_ops;  in cros_ec_wdt_probe()
144 	wdd->timeout = CROS_EC_WATCHDOG_DEFAULT_TIME;  in cros_ec_wdt_probe()
145 	wdd->min_timeout = EC_HANG_DETECT_MIN_TIMEOUT;  in cros_ec_wdt_probe()
146 	wdd->max_timeout = EC_HANG_DETECT_MAX_TIMEOUT;  in cros_ec_wdt_probe()
148 		wdd->bootstatus = WDIOF_CARDRESET;  in cros_ec_wdt_probe()
155 	watchdog_stop_on_reboot(wdd);  in cros_ec_wdt_probe()
156 	watchdog_stop_on_unregister(wdd);  in cros_ec_wdt_probe()
157 	watchdog_set_drvdata(wdd, cros_ec);  in cros_ec_wdt_probe()
158 	platform_set_drvdata(pdev, wdd);  in cros_ec_wdt_probe()
160 	return devm_watchdog_register_device(dev, wdd);  in cros_ec_wdt_probe()
165 	struct watchdog_device *wdd = platform_get_drvdata(pdev);  in cros_ec_wdt_suspend()  local
168 	if (watchdog_active(wdd))  in cros_ec_wdt_suspend()
169 		ret = cros_ec_wdt_stop(wdd);  in cros_ec_wdt_suspend()
176 	struct watchdog_device *wdd = platform_get_drvdata(pdev);  in cros_ec_wdt_resume()  local
179 	if (watchdog_active(wdd))  in cros_ec_wdt_resume()
180 		ret = cros_ec_wdt_start(wdd);  in cros_ec_wdt_resume()