[PATCH] drm/amd/pm: skip gfx cgpg in the s0ix suspend-resume

[Prike Liang]

In the s0ix entry need retain gfx in the gfxoff state,we don't
disable gfx cgpg in the suspend so there is also needn't enable
gfx cgpg in the s0ix resume.

Signed-off-by: Prike Liang <Prike.Liang at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 5839918..185269f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1607,7 +1607,8 @@ static int smu_resume(void *handle)
 		return ret;
 	}
 
-	if (smu->is_apu)
+	/* skip gfx cgpg in the s0ix suspend-resume case*/
+	if (smu->is_apu && !adev->in_s0ix)
 		smu_set_gfx_cgpg(&adev->smu, true);
 
 	smu->disable_uclk_switch = 0;
-- 
2.7.4