diff options
| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2025-03-26 09:29:50 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2025-05-24 16:57:51 +0200 |
| commit | 8807f0afacc480ea9b8c143e765868907b5c4c47 (patch) | |
| tree | 1a2866ea90e91f94d09b95ba6e52a92c1169cd2e | |
| parent | ec90349a9433937e2fd83a57e16f40bce1fc1481 (diff) | |
watchdog: da9052_wdt: do not disable wdt during probe
If the watchog is started by the bootloader, we do not want the watchdog
to be disabled.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250326-da9052-fixes-v3-3-a38a560fef0e@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
| -rw-r--r-- | drivers/watchdog/da9052_wdt.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c index fa9078d4c136..5bef70cb74b3 100644 --- a/drivers/watchdog/da9052_wdt.c +++ b/drivers/watchdog/da9052_wdt.c @@ -194,11 +194,15 @@ static int da9052_wdt_probe(struct platform_device *pdev) 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) { - dev_err(dev, "Failed to disable watchdog bits, %d\n", ret); + ret = da9052_reg_read(da9052, DA9052_CONTROL_D_REG); + if (ret < 0) return ret; + + /* Check if FW enabled the watchdog */ + if (ret & DA9052_CONTROLD_TWDSCALE) { + /* Ensure proper initialization */ + da9052_wdt_start(da9052_wdt); + set_bit(WDOG_HW_RUNNING, &da9052_wdt->status); } return devm_watchdog_register_device(dev, &driver_data->wdt); |