From fa5d2e0c103a7763b140746d396dcb8c723e74f2 Mon Sep 17 00:00:00 2001 From: Tom St Denis Date: Thu, 28 Jul 2016 09:45:07 -0400 Subject: [PATCH] drm/amd/amdgpu: enable PG_EN bit in powergating UVD Enable the PG_EN bit just before the SMU would be tasked with the PG transition. Signed-off-by: Tom St Denis Reviewed-by: Rex Zhu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index 7f2b5de29f67..391457f1eafd 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -997,6 +997,8 @@ static int uvd_v6_0_set_powergating_state(void *handle, if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD)) return 0; + WREG32(mmUVD_POWER_STATUS, UVD_POWER_STATUS__UVD_PG_EN_MASK); + if (state == AMD_PG_STATE_GATE) { uvd_v6_0_stop(adev); return 0; -- 2.20.1