diff options
| author | Antonio Borneo <antonio.borneo@foss.st.com> | 2025-05-20 10:59:52 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2025-06-01 13:16:29 +0200 |
| commit | cc0df5eba1b3a0eb54003d977a062ed39db09b0d (patch) | |
| tree | e06cc8a719ecd87b97fe2fa9509e454c4f1d5a5b /scripts/extract-fwblobs | |
| parent | 27a46a0f088692bca08165e320e0293fd02638e2 (diff) | |
watchdog: arm_smc_wdt: get wdt status through SMCWD_GET_TIMELEFT
The optional SMCWD_GET_TIMELEFT command can be used to detect if
the watchdog has already been started.
See the implementation in OP-TEE secure OS [1].
At probe time, check if the watchdog is already started and then
set WDOG_HW_RUNNING in the watchdog status. This will cause the
watchdog framework to ping the watchdog until a userspace watchdog
daemon takes over the control.
Link: https://github.com/OP-TEE/optee_os/commit/a7f2d4bd8632 [1]
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250520085952.210723-1-antonio.borneo@foss.st.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'scripts/extract-fwblobs')
0 files changed, 0 insertions, 0 deletions