With "dpm=0", there will be no DPM enabled. The code
needs to be refined to support this.

Change-Id: Ief1561e69a24472135e0499073a27ea5fd8174e2
Signed-off-by: Evan Quan <[email protected]>
---
 drivers/gpu/drm/amd/powerplay/amd_powerplay.c |  5 ++++-
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c    |  6 ++++++
 drivers/gpu/drm/amd/powerplay/arcturus_ppt.c  | 10 ++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c 
b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 7293763d524c..c195575366a3 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -927,9 +927,12 @@ static int pp_dpm_set_mp1_state(void *handle, enum 
pp_mp1_state mp1_state)
 {
        struct pp_hwmgr *hwmgr = handle;
 
-       if (!hwmgr || !hwmgr->pm_en)
+       if (!hwmgr)
                return -EINVAL;
 
+       if (!hwmgr->pm_en)
+               return 0;
+
        if (hwmgr->hwmgr_func->set_mp1_state)
                return hwmgr->hwmgr_func->set_mp1_state(hwmgr, mp1_state);
 
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c 
b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 96e3f0ee64d8..a56ebcc4e3c7 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1364,6 +1364,9 @@ static int smu_hw_fini(void *handle)
                smu_powergate_jpeg(&adev->smu, true);
        }
 
+       if (!smu->pm_enabled)
+               return 0;
+
        if (!amdgpu_sriov_vf(adev)){
                ret = smu_stop_thermal_control(smu);
                if (ret) {
@@ -1448,6 +1451,9 @@ static int smu_suspend(void *handle)
        struct smu_context *smu = &adev->smu;
        bool baco_feature_is_enabled = false;
 
+       if (!smu->pm_enabled)
+               return 0;
+
        if(!smu->is_apu)
                baco_feature_is_enabled = smu_feature_is_enabled(smu, 
SMU_FEATURE_BACO_BIT);
 
diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c 
b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 064b5201a8a7..1c15c6fbe3b9 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -2176,8 +2176,12 @@ static const struct i2c_algorithm 
arcturus_i2c_eeprom_i2c_algo = {
 static int arcturus_i2c_eeprom_control_init(struct i2c_adapter *control)
 {
        struct amdgpu_device *adev = to_amdgpu_device(control);
+       struct smu_context *smu = &adev->smu;
        int res;
 
+       if (!smu->pm_enabled)
+               return -EOPNOTSUPP;
+
        control->owner = THIS_MODULE;
        control->class = I2C_CLASS_SPD;
        control->dev.parent = &adev->pdev->dev;
@@ -2193,6 +2197,12 @@ static int arcturus_i2c_eeprom_control_init(struct 
i2c_adapter *control)
 
 static void arcturus_i2c_eeprom_control_fini(struct i2c_adapter *control)
 {
+       struct amdgpu_device *adev = to_amdgpu_device(control);
+       struct smu_context *smu = &adev->smu;
+
+       if (!smu->pm_enabled)
+               return;
+
        i2c_del_adapter(control);
 }
 
-- 
2.24.1

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