[PATCH 08/12] drm/amd/pm: add proper check for amdgpu_dpm before granting pp_dpm_load_fw

[Evan Quan <evan.quan@amd.com>]

Make sure the interface get granted only when amdgpu_dpm enabled.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Change-Id: Ia1d1123470fab89b41b24ea80dcb319570aa7438
---
 drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c | 6 ++++++
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c   | 3 ---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
index 4c709f7bcd51..e95893556147 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
@@ -49,6 +49,9 @@ static int amd_powerplay_create(struct amdgpu_device *adev)
 
 	hwmgr->adev = adev;
 	hwmgr->not_vf = !amdgpu_sriov_vf(adev);
+	hwmgr->pp_one_vf = amdgpu_sriov_is_pp_one_vf(adev);
+	hwmgr->pm_en = (amdgpu_dpm && (hwmgr->not_vf || hwmgr->pp_one_vf))
+			? true : false;
 	hwmgr->device = amdgpu_cgs_create_device(adev);
 	mutex_init(&hwmgr->msg_lock);
 	hwmgr->chip_family = adev->family;
@@ -275,6 +278,9 @@ static int pp_dpm_load_fw(void *handle)
 {
 	struct pp_hwmgr *hwmgr = handle;
 
+	if (!hwmgr->pm_en)
+		return -EOPNOTSUPP;
+
 	if (!hwmgr || !hwmgr->smumgr_funcs || !hwmgr->smumgr_funcs->start_smu)
 		return -EINVAL;
 
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c
index 4fd61d7f6c70..c0c2f36094fa 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c
@@ -217,9 +217,6 @@ int hwmgr_hw_init(struct pp_hwmgr *hwmgr)
 {
 	int ret = 0;
 
-	hwmgr->pp_one_vf = amdgpu_sriov_is_pp_one_vf((struct amdgpu_device *)hwmgr->adev);
-	hwmgr->pm_en = (amdgpu_dpm && (hwmgr->not_vf || hwmgr->pp_one_vf))
-			? true : false;
 	if (!hwmgr->pm_en)
 		return 0;
 
-- 
2.29.0