drivers/watchdog/imx_sc_wdt.c

1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright 2018-2019 NXP.
6 #include <linux/arm-smccc.h>
7 #include <linux/firmware/imx/sci.h>
65 		return -EACCES;  in imx_sc_wdt_start()
70 	return res.a0 ? -EACCES : 0;  in imx_sc_wdt_start()
80 	return res.a0 ? -EACCES : 0;  in imx_sc_wdt_stop()
88 	wdog->timeout = timeout;  in imx_sc_wdt_set_timeout()
92 	return res.a0 ? -EACCES : 0;  in imx_sc_wdt_set_timeout()
106 		      (wdog->timeout - pretimeout) * 1000, 0, 0, 0,  in imx_sc_wdt_set_pretimeout()
109 		return -EACCES;  in imx_sc_wdt_set_pretimeout()
111 	wdog->pretimeout = pretimeout;  in imx_sc_wdt_set_pretimeout()
126 		watchdog_notify_pretimeout(&imx_sc_wdd->wdd);  in imx_sc_wdt_notify()
151 	.identity	= "i.MX SC watchdog timer",
160 	struct device *dev = &pdev->dev;  in imx_sc_wdt_probe()
165 		return -ENOMEM;  in imx_sc_wdt_probe()
169 	wdog = &imx_sc_wdd->wdd;  in imx_sc_wdt_probe()
170 	wdog->info = &imx_sc_wdt_info;  in imx_sc_wdt_probe()
171 	wdog->ops = &imx_sc_wdt_ops;  in imx_sc_wdt_probe()
172 	wdog->min_timeout = 1;  in imx_sc_wdt_probe()
173 	wdog->max_timeout = MAX_TIMEOUT;  in imx_sc_wdt_probe()
174 	wdog->parent = dev;  in imx_sc_wdt_probe()
175 	wdog->timeout = DEFAULT_TIMEOUT;  in imx_sc_wdt_probe()
179 	ret = imx_sc_wdt_set_timeout(wdog, wdog->timeout);  in imx_sc_wdt_probe()
194 	imx_sc_wdd->wdt_notifier.notifier_call = imx_sc_wdt_notify;  in imx_sc_wdt_probe()
195 	ret = imx_scu_irq_register_notifier(&imx_sc_wdd->wdt_notifier);  in imx_sc_wdt_probe()
206 				       &imx_sc_wdd->wdt_notifier);  in imx_sc_wdt_probe()
217 	{ .compatible = "fsl,imx-sc-wdt", },
225 		.name	= "imx-sc-wdt",