diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2017-10-12 19:38:21 +0530 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-10-18 01:10:37 +0000 |
| commit | 319e3b4cce73c441de485e4569498f95ab114211 (patch) | |
| tree | 9ed11e7e8dd0c920167ea65c9903a04d0dc65e86 /src/soc/intel/cannonlake/romstage | |
| parent | c1ca65df3f3d4d98820f9431a2e41b446928d8dd (diff) | |
soc/intel/cannonlake: Create acpi_get_sleep_type() to get previous sleep state
This patch uses PMC common function to get previous sleep state
using cbmem or chipset_power_state global structure.
acpi_get_sleep_type is needed in PRE_RAM stage when soc selects
CONFIG_EARLY_EBDA_INIT kconfig option.
Change-Id: Ib9f8bdc1c682807450b6c01941b9a0927789b2d8
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/21988
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/cannonlake/romstage')
| -rw-r--r-- | src/soc/intel/cannonlake/romstage/power_state.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/soc/intel/cannonlake/romstage/power_state.c b/src/soc/intel/cannonlake/romstage/power_state.c index 46048db75b..cd9a3bc76c 100644 --- a/src/soc/intel/cannonlake/romstage/power_state.c +++ b/src/soc/intel/cannonlake/romstage/power_state.c @@ -24,14 +24,20 @@ #include <soc/pci_devs.h> #include <soc/pm.h> -static struct chipset_power_state power_state CAR_GLOBAL; +int acpi_get_sleep_type(void) +{ + struct chipset_power_state *ps; + + ps = pmc_get_power_state(); + return ps->prev_sleep_state; +} static void migrate_power_state(int is_recovery) { struct chipset_power_state *ps_cbmem; struct chipset_power_state *ps_car; - ps_car = car_get_var_ptr(&power_state); + ps_car = pmc_get_power_state(); ps_cbmem = cbmem_add(CBMEM_ID_POWER_STATE, sizeof(*ps_cbmem)); if (ps_cbmem == NULL) { |