Commit d661155b authored Nov 17, 2020 by Rodrigo Siqueira Committed by Alex Deucher Nov 24, 2020

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



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

parent dbbf2728

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1041,7 +1041,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
		amdgpu_dm_init_color_mod();

		#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);

		if (!adev->dm.hdcp_workqueue)

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