Commit b1413e6e authored by Loic Poulain's avatar Loic Poulain Committed by Wim Van Sebroeck

watchdog: pm8916_wdt: Add system sleep callbacks

Add suspend and resume pm operations.
Tested on dragonboard-410c.
Signed-off-by: default avatarLoic Poulain <loic.poulain@linaro.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1581435483-6796-1-git-send-email-loic.poulain@linaro.orgSigned-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 000de541
...@@ -192,6 +192,7 @@ static int pm8916_wdt_probe(struct platform_device *pdev) ...@@ -192,6 +192,7 @@ static int pm8916_wdt_probe(struct platform_device *pdev)
wdt->wdev.timeout = PM8916_WDT_DEFAULT_TIMEOUT; wdt->wdev.timeout = PM8916_WDT_DEFAULT_TIMEOUT;
wdt->wdev.pretimeout = 0; wdt->wdev.pretimeout = 0;
watchdog_set_drvdata(&wdt->wdev, wdt); watchdog_set_drvdata(&wdt->wdev, wdt);
platform_set_drvdata(pdev, wdt);
watchdog_init_timeout(&wdt->wdev, 0, dev); watchdog_init_timeout(&wdt->wdev, 0, dev);
pm8916_wdt_configure_timers(&wdt->wdev); pm8916_wdt_configure_timers(&wdt->wdev);
...@@ -199,6 +200,29 @@ static int pm8916_wdt_probe(struct platform_device *pdev) ...@@ -199,6 +200,29 @@ static int pm8916_wdt_probe(struct platform_device *pdev)
return devm_watchdog_register_device(dev, &wdt->wdev); return devm_watchdog_register_device(dev, &wdt->wdev);
} }
static int __maybe_unused pm8916_wdt_suspend(struct device *dev)
{
struct pm8916_wdt *wdt = dev_get_drvdata(dev);
if (watchdog_active(&wdt->wdev))
return pm8916_wdt_stop(&wdt->wdev);
return 0;
}
static int __maybe_unused pm8916_wdt_resume(struct device *dev)
{
struct pm8916_wdt *wdt = dev_get_drvdata(dev);
if (watchdog_active(&wdt->wdev))
return pm8916_wdt_start(&wdt->wdev);
return 0;
}
static SIMPLE_DEV_PM_OPS(pm8916_wdt_pm_ops, pm8916_wdt_suspend,
pm8916_wdt_resume);
static const struct of_device_id pm8916_wdt_id_table[] = { static const struct of_device_id pm8916_wdt_id_table[] = {
{ .compatible = "qcom,pm8916-wdt" }, { .compatible = "qcom,pm8916-wdt" },
{ } { }
...@@ -210,6 +234,7 @@ static struct platform_driver pm8916_wdt_driver = { ...@@ -210,6 +234,7 @@ static struct platform_driver pm8916_wdt_driver = {
.driver = { .driver = {
.name = "pm8916-wdt", .name = "pm8916-wdt",
.of_match_table = of_match_ptr(pm8916_wdt_id_table), .of_match_table = of_match_ptr(pm8916_wdt_id_table),
.pm = &pm8916_wdt_pm_ops,
}, },
}; };
module_platform_driver(pm8916_wdt_driver); module_platform_driver(pm8916_wdt_driver);
......
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