drm/amd/amdgpu: Enabling Power Gating for Stoney platform

Removed condition checks to skip the power gating feature for
stoney platform.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Vijendar Mukunda <vijendar.mukunda@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c

@@ -301,7 +301,7 @@ static int acp_hw_init(void *handle)
 
 	acp_base = adev->rmmio_base;
 
-	if (adev->asic_type != CHIP_STONEY) {
+
 	adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
 	if (adev->acp.acp_genpd == NULL)
 		return -ENOMEM;
@@ -314,7 +314,6 @@ static int acp_hw_init(void *handle)
 	adev->acp.acp_genpd->cgs_dev = adev->acp.cgs_device;
 
 	pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
-	}
 
 	adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
 							GFP_KERNEL);
@@ -431,7 +430,7 @@ static int acp_hw_init(void *handle)
 	if (r)
 		return r;
 
-	if (adev->asic_type != CHIP_STONEY) {
+
 	for (i = 0; i < ACP_DEVS ; i++) {
 		dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
 		r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
@@ -440,7 +439,7 @@ static int acp_hw_init(void *handle)
 			return r;
 		}
 	}
-	}
+
 
 	/* Assert Soft reset of ACP */
 	val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
@@ -499,7 +498,7 @@ static int acp_hw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	/* return early if no ACP */
-	if (!adev->acp.acp_cell) {
+	if (!adev->acp.acp_genpd) {
 		amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
 		return 0;
 	}
@@ -540,7 +539,6 @@ static int acp_hw_fini(void *handle)
 		udelay(100);
 	}
 
-	if (adev->acp.acp_genpd) {
 	for (i = 0; i < ACP_DEVS ; i++) {
 		dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
 		ret = pm_genpd_remove_device(dev);
@@ -548,11 +546,10 @@ static int acp_hw_fini(void *handle)
 		if (ret)
 			dev_err(dev, "remove dev from genpd failed\n");
 	}
-		kfree(adev->acp.acp_genpd);
-	}
 
 	mfd_remove_devices(adev->acp.parent);
 	kfree(adev->acp.acp_res);
+	kfree(adev->acp.acp_genpd);
 	kfree(adev->acp.acp_cell);
 
 	return 0;