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

[Huang, Ray]

[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Huang Rui <ray.huang at amd.com>

-----Original Message-----
From: Liang, Prike <Prike.Liang at amd.com> 
Sent: Wednesday, April 15, 2020 11:43 PM
To: 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