Commit 35fe1915 authored by Bhawanpreet Lakha's avatar Bhawanpreet Lakha Committed by Alex Deucher
Browse files

drm/amd/display: Fix HDCP 1.X 1A-04 failing 



[Why]
On some linux based OS, the hotplug->HDCP start takes longer than
4seconds (by ~100ms) This is due to the HDCP delay (3 sec) so we only
have 1 second to hotplug->stream enablement, which is not enough for
certain OS configs.

[How]
Change the Delay to 0 seconds. From testing it seems like 0 Seconds can
pass 1.x and 2.x compliances

Tested-by: default avatarMark Broadworth <mark.broadworth@amd.com>
Reviewed-by: default avatarAurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3442f4e0

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

+1 −1
Original line number Diff line number Diff line
@@ -495,7 +495,7 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) 
	link->dp.mst_enabled = config->mst_enabled;

	link->dp.usb4_enabled = config->usb4_enabled;

	display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION;

	link->adjust.auth_delay = 3;

	link->adjust.auth_delay = 0;

	link->adjust.hdcp1.disable = 0;

	conn_state = aconnector->base.state;