diff options
| -rw-r--r-- | power/icelake.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/power/icelake.c b/power/icelake.c index e9025b4d04..4e7b829322 100644 --- a/power/icelake.c +++ b/power/icelake.c @@ -18,7 +18,8 @@ /* Console output macros */ #define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args) -#define IN_PCH_SLP_SUS_WAIT_TIME_MS 100 +/* The wait time is ~150 msec, allow for safety margin. */ +#define IN_PCH_SLP_SUS_WAIT_TIME_USEC (250 * MSEC) static int forcing_shutdown; /* Forced shutdown in progress? */ @@ -112,9 +113,12 @@ enum power_state power_handle_state(enum power_state state) CPRINTS("Pass thru GPIO_DSW_PWROK: %d", dswpwrok_in); dswpwrok_out = dswpwrok_in; - /* Now wait 100ms for SLP_SUS_L to go high based on tPCH32 */ + /* + * Now wait for SLP_SUS_L to go high based on tPCH32. If this + * signal doesn't go high within 250 msec then go back to G3. + */ if (power_wait_signals_timeout(IN_PCH_SLP_SUS_DEASSERTED, - IN_PCH_SLP_SUS_WAIT_TIME_MS) != EC_SUCCESS) { + IN_PCH_SLP_SUS_WAIT_TIME_USEC) != EC_SUCCESS) { CPRINTS("SLP_SUS_L didn't go high! Assuming G3."); return POWER_G3; } |