diff options
Diffstat (limited to 'common/host_event_commands.c')
| -rw-r--r-- | common/host_event_commands.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/common/host_event_commands.c b/common/host_event_commands.c index c421ea512a..9fe5d339df 100644 --- a/common/host_event_commands.c +++ b/common/host_event_commands.c @@ -211,19 +211,23 @@ void lpc_s3_resume_clear_masks(void) /* * Clear events that are not part of SCI/SMI mask so as to prevent - * premature wakes on next suspend. This is needed because A.P only queries - * SCI events after resume. We do not clear SCI/SMI events as they help - * kernel identify the wake reason on resume. - * For events that are not set in SCI mask but are part of WAKE(S0ix/S3) - * masks, kernel drivers should have other ways (physical/virtual interrupt) - * pin to identify when they trigger wakes. + * premature wakes on next suspend(S0ix). This is not needed on + * suspending to S3 as coreboot clears all events on path to suspend. + * + * We preserve events that are part of SCI/SMI mask to help kernel + * identify the wake reason on resume. For events that are not set + * in SCI mask but are part of S0iX WAKE masks, kernel drivers should + * have other ways (physical/virtual interrupt) pin to identify when + * they trigger wakes. */ +#ifdef CONFIG_POWER_S0IX void clear_non_sci_events(void) { host_clear_events(~lpc_get_host_event_mask(LPC_HOST_EVENT_SCI) & ~lpc_get_host_event_mask(LPC_HOST_EVENT_SMI)); } DECLARE_HOOK(HOOK_CHIPSET_RESUME, clear_non_sci_events, HOOK_PRIO_DEFAULT); +#endif #endif |