[PATCH 2/2] drm/amd/pm: no pptable resetup on runpm exiting

[Evan Quan]

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 at amd.com>
Change-Id: Ib6d61f8e8cb58df45d9e24725b0672239b3ff653
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index ff806a2e804f..bb25f14f0733 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1220,10 +1220,17 @@ 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); */
-- 
2.34.1