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-rw-r--r--src/soc/intel/alderlake/chip.h7
-rw-r--r--src/soc/intel/alderlake/fsp_params.c2
2 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/chip.h b/src/soc/intel/alderlake/chip.h
index d01dc73dea..c4de08f75c 100644
--- a/src/soc/intel/alderlake/chip.h
+++ b/src/soc/intel/alderlake/chip.h
@@ -614,6 +614,13 @@ struct soc_intel_alderlake_config {
* Workaround for Intel TA# 723158 to prevent possible display flicker.
*/
bool usb2_phy_sus_pg_disable;
+
+ /*
+ * Enable or Disable Package C-state Demotion.
+ * Default is set to 0.
+ * Set this to 1 in order to disable Package C-state demotion.
+ */
+ bool disable_package_c_state_demotion;
};
typedef struct soc_intel_alderlake_config config_t;
diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c
index 17d0c763fd..cbc7471115 100644
--- a/src/soc/intel/alderlake/fsp_params.c
+++ b/src/soc/intel/alderlake/fsp_params.c
@@ -965,6 +965,8 @@ static void fill_fsps_misc_power_params(FSP_S_CONFIG *s_cfg,
s_cfg->C1StateAutoDemotion = !config->disable_c1_state_auto_demotion;
s_cfg->VrPowerDeliveryDesign = config->vr_power_delivery_design;
+
+ s_cfg->PkgCStateDemotion = !config->disable_package_c_state_demotion;
}
static void fill_fsps_irq_params(FSP_S_CONFIG *s_cfg,