Add suspend and resume pm operations.
Tested on dragonboard-410c.
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
drivers/watchdog/pm8916_wdt.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/watchdog/pm8916_wdt.c b/drivers/watchdog/pm8916_wdt.c
index 1213179..0937b8d3 100644
--- a/drivers/watchdog/pm8916_wdt.c
+++ b/drivers/watchdog/pm8916_wdt.c
@@ -192,6 +192,7 @@ static int pm8916_wdt_probe(struct platform_device *pdev)
wdt->wdev.timeout = PM8916_WDT_DEFAULT_TIMEOUT;
wdt->wdev.pretimeout = 0;
watchdog_set_drvdata(&wdt->wdev, wdt);
+ platform_set_drvdata(pdev, wdt);
watchdog_init_timeout(&wdt->wdev, 0, dev);
pm8916_wdt_configure_timers(&wdt->wdev);
@@ -199,6 +200,29 @@ static int pm8916_wdt_probe(struct platform_device *pdev)
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[] = {
{ .compatible = "qcom,pm8916-wdt" },
{ }
@@ -210,6 +234,7 @@ static struct platform_driver pm8916_wdt_driver = {
.driver = {
.name = "pm8916-wdt",
.of_match_table = of_match_ptr(pm8916_wdt_id_table),
+ .pm = &pm8916_wdt_pm_ops,
},
};
module_platform_driver(pm8916_wdt_driver);
--
2.7.4
