watchdog: da9052_wdt: add support for bootstatus bits

Enable support for these bootstatus bits:
    WDIOF_CARDRESET
    WDIOF_OVERHEAT
    WDIOF_POWERUNDER

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20241210-da9052-wdt-v2-2-95a5756e9ac8@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c
index d708c091bf1b1e3327a134d4d2244d4b883d14e4..77039f2f0be54273df1666fe40c413b6c89285a1 100644 (file)
--- a/drivers/watchdog/da9052_wdt.c
+++ b/drivers/watchdog/da9052_wdt.c
@@ -135,7 +135,11 @@ static int da9052_wdt_ping(struct watchdog_device *wdt_dev)
 }
 
 static const struct watchdog_info da9052_wdt_info = {
-       .options        = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+       .options =      WDIOF_SETTIMEOUT |
+                       WDIOF_KEEPALIVEPING |
+                       WDIOF_CARDRESET |
+                       WDIOF_OVERHEAT |
+                       WDIOF_POWERUNDER,
        .identity       = "DA9052 Watchdog",
 };
 
@@ -169,6 +173,13 @@ static int da9052_wdt_probe(struct platform_device *pdev)
        da9052_wdt->parent = dev;
        watchdog_set_drvdata(da9052_wdt, driver_data);
 
+       if (da9052->fault_log & DA9052_FAULTLOG_TWDERROR)
+               da9052_wdt->bootstatus |= WDIOF_CARDRESET;
+       if (da9052->fault_log & DA9052_FAULTLOG_TEMPOVER)
+               da9052_wdt->bootstatus |= WDIOF_OVERHEAT;
+       if (da9052->fault_log & DA9052_FAULTLOG_VDDFAULT)
+               da9052_wdt->bootstatus |= WDIOF_POWERUNDER;
+
        ret = da9052_reg_update(da9052, DA9052_CONTROL_D_REG,
                                DA9052_CONTROLD_TWDSCALE, 0);
        if (ret < 0) {