smcwd_call
err = smcwd_call(wdd, SMCWD_INIT, 0, &res);
err = smcwd_call(wdd, SMCWD_GET_TIMELEFT, 0, NULL);
static int smcwd_call(struct watchdog_device *wdd, enum smcwd_call call,
return smcwd_call(wdd, SMCWD_PET, 0, NULL);
smcwd_call(wdd, SMCWD_GET_TIMELEFT, 0, &res);
res = smcwd_call(wdd, SMCWD_SET_TIMEOUT, timeout, NULL);
return smcwd_call(wdd, SMCWD_ENABLE, 0, NULL);
return smcwd_call(wdd, SMCWD_ENABLE, 1, NULL);