u-boot/doc/device-tree-bindings/watchdog/common.txt

Common watchdog properties.

Optional properties:
- timeout-sec : Timeout of the watchdog in seconds
                If this timeout is not defined, the value of WATCHDOG_TIMEOUT_MSECS will
                be used instead.
- hw_margin_ms : Period used to reset the watchdog in ms
                 If this period is not defined, the default value is 1000.
- u-boot,noautostart :
- u-boot,autostart : These (mutually exclusive) boolean properties can be used to control
                     whether the watchdog is automatically started when probed. If neither
                     are present, the behaviour is determined by the config option
                     WATCHDOG_AUTOSTART.
doc: device-tree-bindings: watchdog: document common properties Adds simple documentation about common properties for watchdog in the device tree. Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com> Reviewed-by: Stefan Roese <sr@denx.de> 2022-03-09 13:56:19 +00:00			`Common watchdog properties.`

			`Optional properties:`
			`- timeout-sec : Timeout of the watchdog in seconds`
			`If this timeout is not defined, the value of WATCHDOG_TIMEOUT_MSECS will`
			`be used instead.`
			`- hw_margin_ms : Period used to reset the watchdog in ms`
			`If this period is not defined, the default value is 1000.`
watchdog: introduce a u-boot,autostart property This is a companion to u-boot,noautostart. If one has a single watchdog device that one does want to have auto-started, but several others that one doesn't, the only way currently is to set the CONFIG_WATCHDOG_AUTOSTART and then use the opt-out for the majority. The main motivation for this is to add an autostarted watchdog device to the sandbox (to test a fix) without having to set AUTOSTART in sandbox_defconfig and add the noautostart property to the existing devices. But it's also nice for symmetry, and the logic in init_watchdog_dev() becomes simpler to read because we avoid all the negations. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> 2022-09-27 09:54:03 +00:00			`- u-boot,noautostart :`
			`- u-boot,autostart : These (mutually exclusive) boolean properties can be used to control`
			`whether the watchdog is automatically started when probed. If neither`
			`are present, the behaviour is determined by the config option`
			`WATCHDOG_AUTOSTART.`