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drm/amd/display: Avoid HDCP initialization in devices without output

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The HDCP feature requires at least one connector attached to the device;
however, some GPUs do not have a physical output, making the HDCP
initialization irrelevant. This patch disables HDCP initialization when
the graphic card does not have output.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Rodrigo Siqueira 2020-11-17 15:25:48 -05:00 committed by Alex Deucher
parent dbbf2728d5
commit d661155bfc
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -1041,7 +1041,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
amdgpu_dm_init_color_mod(); amdgpu_dm_init_color_mod();
#ifdef CONFIG_DRM_AMD_DC_HDCP #ifdef CONFIG_DRM_AMD_DC_HDCP
if (adev->asic_type >= CHIP_RAVEN) { if (adev->dm.dc->caps.max_links > 0 && adev->asic_type >= CHIP_RAVEN) {
adev->dm.hdcp_workqueue = hdcp_create_workqueue(adev, &init_params.cp_psp, adev->dm.dc); adev->dm.hdcp_workqueue = hdcp_create_workqueue(adev, &init_params.cp_psp, adev->dm.dc);
if (!adev->dm.hdcp_workqueue) if (!adev->dm.hdcp_workqueue)