drm/amd/pm/smu13: BACO is supported when it's in BACO state

This leverages the logic in smu11. No need to talk to SMU to
check BACO enablement as it's in BACO state already.

Signed-off-by: Guchun Chen <[email protected]>
Reviewed-by: Kenneth Feng <[email protected]>
Reviewed-by: Lijo Lazar <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Cc: [email protected] # 6.0, 6.1

Author: Guchun Chen

drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c

@@ -2298,6 +2298,10 @@ bool smu_v13_0_baco_is_support(struct smu_context *smu)
 	    !smu_baco->platform_support)
 		return false;
 
+	/* return true if ASIC is in BACO state already */
+	if (smu_v13_0_baco_get_state(smu) == SMU_BACO_STATE_ENTER)
+		return true;
+
 	if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_BACO_BIT) &&
 	    !smu_cmn_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT))
 		return false;