[PATCH] drm/amd/powerplay: fix resume failed as smu table initialize early exit

[Deucher, Alexander]

[AMD Public Use]

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
________________________________
From: Liang, Prike <Prike.Liang at amd.com>
Sent: Wednesday, April 15, 2020 11:43 AM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Huang, Ray <Ray.Huang at amd.com>; Liang, Prike <Prike.Liang at amd.com>
Subject: [PATCH] drm/amd/powerplay: fix resume failed as smu table initialize early exit

When the amdgpu in the suspend/resume loop need notify the dpm disabled,
otherwise the smu table will be uninitialize and result in resume failed.

Signed-off-by: Prike Liang <Prike.Liang at amd.com>
Tested-by: Mengbing Wang <Mengbing.Wang at amd.com>
---
 drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 95eb445..7ddaea8 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -895,12 +895,17 @@ static int renoir_read_sensor(struct smu_context *smu,

 static bool renoir_is_dpm_running(struct smu_context *smu)
 {
+       struct amdgpu_device *adev = smu->adev;
+
         /*
          * Until now, the pmfw hasn't exported the interface of SMU
          * feature mask to APU SKU so just force on all the feature
          * at early initial stage.
          */
-       return true;
+       if (adev->in_suspend)
+               return false;
+       else
+               return true;

 }

--
2.7.4

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