drm/amd/pm: no pptable resetup on runpm exiting

It is assumed the pptable used before runpm is same as
the one used afterwards. Thus, we can reuse the stored
copy and do not need to resetup the pptable again.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <feifei.xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 834d146..0652b00 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1202,10 +1202,17 @@ static int smu_smc_hw_setup(struct smu_context *smu)
                return ret;
        }
 
-       ret = smu_setup_pptable(smu);
-       if (ret) {
-               dev_err(adev->dev, "Failed to setup pptable!\n");
-               return ret;
+       /*
+        * It is assumed the pptable used before runpm is same as
+        * the one used afterwards. Thus, we can reuse the stored
+        * copy and do not need to resetup the pptable again.
+        */
+       if (!adev->in_runpm) {
+               ret = smu_setup_pptable(smu);
+               if (ret) {
+                       dev_err(adev->dev, "Failed to setup pptable!\n");
+                       return ret;
+               }
        }
 
        /* smu_dump_pptable(smu); */