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| author | Andrej Picej <andrej.picej@norik.com> | 2021-12-06 07:47:31 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2022-05-21 10:09:29 +0200 |
| commit | 382256b219fbc901a69481e5b60812556f53152e (patch) | |
| tree | 4407cf8d7befea09d774eac9d23ead119e2b843f /Documentation/devicetree/bindings/watchdog | |
| parent | af84a5a75344871c44ddbf4ab901c3427909f893 (diff) | |
| download | linux-382256b219fbc901a69481e5b60812556f53152e.tar.gz linux-382256b219fbc901a69481e5b60812556f53152e.tar.bz2 linux-382256b219fbc901a69481e5b60812556f53152e.zip | |
dt-bindings: watchdog: da9062: add watchdog timeout mode
Document the watchdog timeout mode property. If this property is used
the user can select what happens on watchdog timeout. Set this property
to 1 to enable SHUTDOWN (the device resets), set it to 0 and the device
will go to POWERDOWN on watchdog timeout.
If this property is not set, don't touch the WATCHDOG_SD bit and leave
the configuration to OTP. This way backward compatibility is not broken.
Signed-off-by: Andrej Picej <andrej.picej@norik.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211206064732.280375-4-andrej.picej@norik.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog')
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/da9062-wdt.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt index 950e4fba8dbc..354314d854ef 100644 --- a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt @@ -10,6 +10,12 @@ Optional properties: - dlg,use-sw-pm: Add this property to disable the watchdog during suspend. Only use this option if you can't use the watchdog automatic suspend function during a suspend (see register CONTROL_B). +- dlg,wdt-sd: Set what happens on watchdog timeout. If this bit is set the + watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers + POWERDOWN. Can be 0 or 1. Only use this option if you want to change the + default chip's OTP setting for WATCHDOG_SD bit. If this property is NOT + set the WATCHDOG_SD bit and on timeout watchdog behavior will match the + chip's OTP settings. Example: DA9062 |