drm/amd/powerplay: drop unused APIs and unnecessary checks

Minor code cleanups.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

@@ -720,30 +720,6 @@ int smu_feature_is_supported(struct smu_context *smu, enum smu_feature_mask mask
 	return ret;
 }
 
-int smu_feature_set_supported(struct smu_context *smu,
-			      enum smu_feature_mask mask,
-			      bool enable)
-{
-	struct smu_feature *feature = &smu->smu_feature;
-	int feature_id;
-	int ret = 0;
-
-	feature_id = smu_feature_get_index(smu, mask);
-	if (feature_id < 0)
-		return -EINVAL;
-
-	WARN_ON(feature_id > feature->feature_num);
-
-	mutex_lock(&feature->mutex);
-	if (enable)
-		test_and_set_bit(feature_id, feature->supported);
-	else
-		test_and_clear_bit(feature_id, feature->supported);
-	mutex_unlock(&feature->mutex);
-
-	return ret;
-}
-
 static int smu_set_funcs(struct amdgpu_device *adev)
 {
 	struct smu_context *smu = &adev->smu;
@@ -823,22 +799,10 @@ int smu_get_atom_data_table(struct smu_context *smu, uint32_t table,
 	return 0;
 }
 
-static int smu_initialize_pptable(struct smu_context *smu)
-{
-	/* TODO */
-	return 0;
-}
-
 static int smu_smc_table_sw_init(struct smu_context *smu)
 {
 	int ret;
 
-	ret = smu_initialize_pptable(smu);
-	if (ret) {
-		pr_err("Failed to init smu_initialize_pptable!\n");
-		return ret;
-	}
-
 	/**
 	 * Create smu_table structure, and init smc tables such as
 	 * TABLE_PPTABLE, TABLE_WATERMARKS, TABLE_SMU_METRICS, and etc.
@@ -1137,20 +1101,17 @@ static int smu_smc_table_hw_init(struct smu_context *smu,
 		return ret;
 	}
 
-	if (smu->ppt_funcs->set_power_source) {
 	/*
 	 * For Navi1X, manually switch it to AC mode as PMFW
 	 * may boot it with DC mode.
 	 */
-		if (adev->pm.ac_power)
-			ret = smu_set_power_source(smu, SMU_POWER_SOURCE_AC);
-		else
-			ret = smu_set_power_source(smu, SMU_POWER_SOURCE_DC);
+	ret = smu_set_power_source(smu,
+				   adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
+				   SMU_POWER_SOURCE_DC);
 	if (ret) {
 		pr_err("Failed to switch to %s mode!\n", adev->pm.ac_power ? "AC" : "DC");
 		return ret;
 	}
-	}
 
 	ret = smu_notify_display_change(smu);
 	if (ret)
@@ -2138,15 +2099,12 @@ int smu_set_ac_dc(struct smu_context *smu)
 		return 0;
 
 	mutex_lock(&smu->mutex);
-	if (smu->ppt_funcs->set_power_source) {
-		if (smu->adev->pm.ac_power)
-			ret = smu_set_power_source(smu, SMU_POWER_SOURCE_AC);
-		else
-			ret = smu_set_power_source(smu, SMU_POWER_SOURCE_DC);
+	ret = smu_set_power_source(smu,
+				   smu->adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
+				   SMU_POWER_SOURCE_DC);
 	if (ret)
 		pr_err("Failed to switch to %s mode!\n",
 		       smu->adev->pm.ac_power ? "AC" : "DC");
-	}
 	mutex_unlock(&smu->mutex);
 
 	return ret;

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -668,8 +668,6 @@ extern int smu_feature_set_enabled(struct smu_context *smu,
 				   enum smu_feature_mask mask, bool enable);
 extern int smu_feature_is_supported(struct smu_context *smu,
 				    enum smu_feature_mask mask);
-extern int smu_feature_set_supported(struct smu_context *smu,
-				     enum smu_feature_mask mask, bool enable);
 
 int smu_update_table(struct smu_context *smu, enum smu_table_id table_index, int argument,
 		     void *table_data, bool drv2smu);