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drm/amdgpu: return -ENOENT from uvd 6.0 early init for harvesting 

Fixes init failures on polaris cards with harvested UVD.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Leo Liu 2017-10-31 21:03:39 -04:00 committed by Alex Deucher
parent d3daa2c786
commit cb4b02d7ca
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
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@ -93,6 +93,10 @@ static int uvd_v6_0_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (!(adev->flags & AMD_IS_APU) &&
(RREG32_SMC(ixCC_HARVEST_FUSES) & CC_HARVEST_FUSES__UVD_DISABLE_MASK))
return -ENOENT;
uvd_v6_0_set_ring_funcs(adev);
uvd_v6_0_set_irq_funcs(adev);