diff options
| -rw-r--r-- | drivers/watchdog/da9062_wdt.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c index 0ad15d55071c..10b37dd65bed 100644 --- a/drivers/watchdog/da9062_wdt.c +++ b/drivers/watchdog/da9062_wdt.c @@ -35,6 +35,15 @@ struct da9062_watchdog { bool use_sw_pm; }; +static unsigned int da9062_wdt_read_timeout(struct da9062_watchdog *wdt) +{ + unsigned int val; + + regmap_read(wdt->hw->regmap, DA9062AA_CONTROL_D, &val); + + return wdt_timeout[val & DA9062AA_TWDSCALE_MASK]; +} + static unsigned int da9062_wdt_timeout_to_sel(unsigned int secs) { unsigned int i; @@ -183,7 +192,7 @@ MODULE_DEVICE_TABLE(of, da9062_compatible_id_table); static int da9062_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - int ret; + unsigned int timeout; struct da9062 *chip; struct da9062_watchdog *wdt; @@ -213,11 +222,19 @@ static int da9062_wdt_probe(struct platform_device *pdev) watchdog_set_drvdata(&wdt->wdtdev, wdt); dev_set_drvdata(dev, &wdt->wdtdev); - ret = devm_watchdog_register_device(dev, &wdt->wdtdev); - if (ret < 0) - return ret; + timeout = da9062_wdt_read_timeout(wdt); + if (timeout) + wdt->wdtdev.timeout = timeout; + + /* Set timeout from DT value if available */ + watchdog_init_timeout(&wdt->wdtdev, 0, dev); + + if (timeout) { + da9062_wdt_set_timeout(&wdt->wdtdev, wdt->wdtdev.timeout); + set_bit(WDOG_HW_RUNNING, &wdt->wdtdev.status); + } - return da9062_wdt_ping(&wdt->wdtdev); + return devm_watchdog_register_device(dev, &wdt->wdtdev); } static int __maybe_unused da9062_wdt_suspend(struct device *dev) |