From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 12 Jan 2017 13:50:18 +0000 (+0800)
Subject: drm/amdgpu: refine ci uvd dpm code.
X-Git-Tag: v4.14-rc1~1422^2~31^2~35
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a1970a6382b8781380de9494b2e256aa85814b79;p=platform%2Fkernel%2Flinux-rpi3.git

drm/amdgpu: refine ci uvd dpm code.

Fix up the powergating logic.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Ack-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index ece94ee..9498e78 100644
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -889,7 +889,16 @@ static void ci_dpm_powergate_uvd(struct amdgpu_device *adev, bool gate)
 
 	pi->uvd_power_gated = gate;
 
-	ci_update_uvd_dpm(adev, gate);
+	if (gate) {
+		/* stop the UVD block */
+		amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+							AMD_PG_STATE_GATE);
+		ci_update_uvd_dpm(adev, gate);
+	} else {
+		amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD,
+							AMD_PG_STATE_UNGATE);
+		ci_update_uvd_dpm(adev, gate);
+	}
 }
 
 static bool ci_dpm_vblank_too_short(struct amdgpu_device *adev)