diff options
Diffstat (limited to 'src/soc/intel/elkhartlake')
| -rw-r--r-- | src/soc/intel/elkhartlake/pmc.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/soc/intel/elkhartlake/pmc.c b/src/soc/intel/elkhartlake/pmc.c index 53193ea11e..cf736dd2ca 100644 --- a/src/soc/intel/elkhartlake/pmc.c +++ b/src/soc/intel/elkhartlake/pmc.c @@ -109,6 +109,22 @@ static void pmc_fill_ssdt(const struct device *dev) generate_acpi_power_engine(); } +/* + * `pmc_final` function is native implementation of equivalent events performed by + * each FSP NotifyPhase() API invocations. + * + * + * Clear PMCON status bits (Global Reset/Power Failure/Host Reset Status bits) + * + * Perform the PMCON status bit clear operation from `.final` + * to cover any such chances where later boot stage requested a global + * reset and PMCON status bit remains set. + */ +static void pmc_final(struct device *dev) +{ + pmc_clear_pmcon_sts(); +} + struct device_operations pmc_ops = { .read_resources = soc_pmc_read_resources, .set_resources = noop_set_resources, @@ -117,4 +133,5 @@ struct device_operations pmc_ops = { #if CONFIG(HAVE_ACPI_TABLES) .acpi_fill_ssdt = pmc_fill_ssdt, #endif + .final = pmc_final, }; |