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-rw-r--r--src/soc/intel/common/block/pmc/pmclib.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/pmc/pmclib.c b/src/soc/intel/common/block/pmc/pmclib.c
index 84fc5cafe5..f11926c2fd 100644
--- a/src/soc/intel/common/block/pmc/pmclib.c
+++ b/src/soc/intel/common/block/pmc/pmclib.c
@@ -461,10 +461,25 @@ void pmc_fill_pm_reg_info(struct chipset_power_state *ps)
/* Reads and prints ACPI specific PM registers */
int pmc_fill_power_state(struct chipset_power_state *ps)
{
+ /* Define the sleep state string */
+ static const char * const acpi_sleep_states[] = {
+ [SLP_TYP_S0] = "S0",
+ [SLP_TYP_S1] = "S1",
+ [SLP_TYP_S3] = "S3",
+ [SLP_TYP_S4] = "S4",
+ [SLP_TYP_S5] = "S5",
+ };
+
pmc_fill_pm_reg_info(ps);
ps->prev_sleep_state = pmc_prev_sleep_state(ps);
- printk(BIOS_DEBUG, "prev_sleep_state %d\n", ps->prev_sleep_state);
+
+ if (ps->prev_sleep_state < ARRAY_SIZE(acpi_sleep_states) &&
+ acpi_sleep_states[ps->prev_sleep_state] != NULL)
+ printk(BIOS_DEBUG, "prev_sleep_state %d (%s)\n", ps->prev_sleep_state,
+ acpi_sleep_states[ps->prev_sleep_state]);
+ else
+ printk(BIOS_DEBUG, "prev_sleep_state %d (unknown state)\n", ps->prev_sleep_state);
return ps->prev_sleep_state;
}