Commit f6c98b08 authored by Marco Felsch's avatar Marco Felsch Committed by Wim Van Sebroeck

watchdog: da9062: add power management ops

Disable the watchdog during suspend if it is enabled and re-enable it on
resume. So we can sleep without the interruptions.
Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191128171931.22563-1-m.felsch@pengutronix.deSigned-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent d4ba76d7
......@@ -212,6 +212,7 @@ static int da9062_wdt_probe(struct platform_device *pdev)
watchdog_set_restart_priority(&wdt->wdtdev, 128);
watchdog_set_drvdata(&wdt->wdtdev, wdt);
dev_set_drvdata(dev, &wdt->wdtdev);
ret = devm_watchdog_register_device(dev, &wdt->wdtdev);
if (ret < 0)
......@@ -220,10 +221,34 @@ static int da9062_wdt_probe(struct platform_device *pdev)
return da9062_wdt_ping(&wdt->wdtdev);
}
static int __maybe_unused da9062_wdt_suspend(struct device *dev)
{
struct watchdog_device *wdd = dev_get_drvdata(dev);
if (watchdog_active(wdd))
return da9062_wdt_stop(wdd);
return 0;
}
static int __maybe_unused da9062_wdt_resume(struct device *dev)
{
struct watchdog_device *wdd = dev_get_drvdata(dev);
if (watchdog_active(wdd))
return da9062_wdt_start(wdd);
return 0;
}
static SIMPLE_DEV_PM_OPS(da9062_wdt_pm_ops,
da9062_wdt_suspend, da9062_wdt_resume);
static struct platform_driver da9062_wdt_driver = {
.probe = da9062_wdt_probe,
.driver = {
.name = "da9062-watchdog",
.pm = &da9062_wdt_pm_ops,
.of_match_table = da9062_compatible_id_table,
},
};
......
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