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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: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2022-10-20 11:46:50 -04:00 committed by Alex Deucher
parent 3442f4e0e5
commit 35fe1915ee
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
View File

@ -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;